/* ================================================================
   TuberoYiyo - Premium Glassmorphism Design System
   Production-Ready CSS v3.0
   ================================================================ */

/* ================================================================
   1. CSS VARIABLES (:root)
   ================================================================ */
:root {
    /* ---- Color Palette ---- */
    --clr-bg:             #080c14;
    --clr-bg-2:           #0d1422;
    --clr-surface:        rgba(255,255,255,0.04);
    --clr-surface-hover:  rgba(255,255,255,0.07);
    --clr-border:         rgba(255,255,255,0.08);
    --clr-border-glow:    rgba(0,200,255,0.35);

    --clr-primary:        #00c8ff;
    --clr-primary-rgb:    0,200,255;
    --clr-primary-dim:    rgba(0,200,255,0.15);
    --clr-primary-glow:   rgba(0,200,255,0.4);

    --clr-secondary:      #7c3aed;
    --clr-secondary-rgb:  124,58,237;
    --clr-secondary-dim:  rgba(124,58,237,0.15);
    --clr-secondary-glow: rgba(124,58,237,0.4);

    --clr-accent:         #06ffa5;
    --clr-accent-rgb:     6,255,165;
    --clr-accent-dim:     rgba(6,255,165,0.12);
    --clr-accent-glow:    rgba(6,255,165,0.4);

    --clr-danger:         #ff4757;
    --clr-danger-rgb:     255,71,87;
    --clr-warn:           #ffa726;
    --clr-warn-rgb:       255,167,38;
    --clr-success:        #06ffa5;

    /* ---- Text ---- */
    --clr-text:           #ffffff;
    --clr-text-secondary: rgba(255,255,255,0.62);
    --clr-text-muted:     rgba(255,255,255,0.38);

    /* ---- Typography ---- */
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;

    /* ---- Spacing ---- */
    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 24px;
    --sp-6: 32px;
    --sp-7: 48px;
    --sp-8: 64px;
    --sp-9: 96px;

    /* ---- Radius ---- */
    --radius-xs:  4px;
    --radius-sm:  8px;
    --radius-md:  12px;
    --radius-lg:  16px;
    --radius-xl:  24px;
    --radius-full: 9999px;

    /* ---- Shadows ---- */
    --shadow-sm:   0 2px 8px rgba(0,0,0,0.25);
    --shadow-md:   0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg:   0 16px 48px rgba(0,0,0,0.5);
    --shadow-glow-primary:   0 0 20px rgba(0,200,255,0.3);
    --shadow-glow-secondary: 0 0 20px rgba(124,58,237,0.3);
    --shadow-glow-accent:    0 0 20px rgba(6,255,165,0.3);

    /* ---- Glass ---- */
    --glass-blur:   20px;
    --glass-bg:     rgba(17,17,17,0.55);
    --glass-border: rgba(255,255,255,0.10);

    /* ---- Transitions ---- */
    --ease-out:  cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition:      all 0.3s var(--ease-out);
    --transition-fast: all 0.15s ease;
    --transition-btn:  all 0.2s var(--ease-out);

    /* ---- Z-index ---- */
    --z-bg:     -1;
    --z-base:   1;
    --z-nav:    1000;
    --z-modal:  2000;
    --z-toast:  3000;

    /* ---- Layout ---- */
    --nav-height: 70px;
    --container-max: 1280px;
}

/* ================================================================
   2. RESET + BASE STYLES
   ================================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--clr-primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--clr-accent);
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input, textarea, select {
    font-family: var(--font-body);
    color: var(--clr-text);
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

::selection {
    background: var(--clr-primary);
    color: #000;
}

/* ================================================================
   3. CUSTOM SCROLLBAR
   ================================================================ */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--clr-bg-2);
}
::-webkit-scrollbar-thumb {
    background: rgba(0,200,255,0.35);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--clr-primary);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(0,200,255,0.35) var(--clr-bg-2);
}

/* ================================================================
   4. UTILITY CLASSES
   ================================================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--sp-5);
}

.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

.text-accent  { color: var(--clr-primary); }
.text-glow    { text-shadow: 0 0 20px var(--clr-primary-glow); }
.text-purple  { color: var(--clr-secondary); }
.text-mint    { color: var(--clr-accent); }
.text-muted   { color: var(--clr-text-muted); }
.text-secondary { color: var(--clr-text-secondary); }

.mt-1 { margin-top: var(--sp-1); }
.mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-4); }
.mt-4 { margin-top: var(--sp-6); }
.mt-5 { margin-top: var(--sp-7); }

.mb-1 { margin-bottom: var(--sp-1); }
.mb-2 { margin-bottom: var(--sp-3); }
.mb-3 { margin-bottom: var(--sp-5); }
.mb-4 { margin-bottom: var(--sp-6); }

.grid {
    display: grid;
    gap: var(--sp-5);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-wrap   { flex-wrap: wrap; }
.gap-2       { gap: var(--sp-2); }
.gap-3       { gap: var(--sp-3); }
.gap-4       { gap: var(--sp-4); }

/* ================================================================
   5. ANIMATED BACKGROUND (.bg-particles)
   ================================================================ */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-bg);
    background:
        radial-gradient(ellipse at 15% 50%, rgba(var(--clr-primary-rgb),0.06) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 20%, rgba(var(--clr-secondary-rgb),0.06) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 85%, rgba(var(--clr-accent-rgb),0.04) 0%, transparent 55%);
    animation: bgShift 30s ease-in-out infinite alternate;
}

@keyframes bgShift {
    0% {
        background:
            radial-gradient(ellipse at 15% 50%, rgba(var(--clr-primary-rgb),0.06) 0%, transparent 55%),
            radial-gradient(ellipse at 85% 20%, rgba(var(--clr-secondary-rgb),0.06) 0%, transparent 55%),
            radial-gradient(ellipse at 50% 85%, rgba(var(--clr-accent-rgb),0.04) 0%, transparent 55%);
    }
    50% {
        background:
            radial-gradient(ellipse at 40% 30%, rgba(var(--clr-primary-rgb),0.07) 0%, transparent 55%),
            radial-gradient(ellipse at 70% 60%, rgba(var(--clr-secondary-rgb),0.05) 0%, transparent 55%),
            radial-gradient(ellipse at 20% 70%, rgba(var(--clr-accent-rgb),0.05) 0%, transparent 55%);
    }
    100% {
        background:
            radial-gradient(ellipse at 60% 70%, rgba(var(--clr-primary-rgb),0.05) 0%, transparent 55%),
            radial-gradient(ellipse at 30% 40%, rgba(var(--clr-secondary-rgb),0.07) 0%, transparent 55%),
            radial-gradient(ellipse at 80% 30%, rgba(var(--clr-accent-rgb),0.04) 0%, transparent 55%);
    }
}

/* ================================================================
   6. NAVIGATION BAR (.main-nav)
   ================================================================ */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: var(--z-nav);
    background: rgba(8,12,20,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(var(--clr-primary-rgb),0.12);
    box-shadow: 0 4px 30px rgba(0,0,0,0.35), 0 1px 0 rgba(var(--clr-primary-rgb),0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--sp-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    font-family: var(--font-display);
    text-decoration: none;
    color: var(--clr-text);
}
.logo-icon {
    font-size: 1.8rem;
    line-height: 1;
}
.logo-text {
    color: var(--clr-text);
}
.logo-text .text-accent {
    color: var(--clr-primary);
}

.nav-menu {
    display: flex;
    gap: 4px;
    align-items: center;
}
.nav-menu a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    color: var(--clr-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-menu a:hover,
.nav-menu a.active {
    color: var(--clr-primary);
    background: var(--clr-primary-dim);
}
.nav-icon {
    font-size: 1rem;
    line-height: 1;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Language Selector */
.lang-selector select {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    outline: none;
    transition: var(--transition);
}
.lang-selector select:hover {
    border-color: var(--clr-primary);
}

/* Hamburger Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--clr-text);
    transition: var(--transition);
    border-radius: 2px;
    display: block;
}
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================================================
   7. HERO SECTION (.hero)
   ================================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 40px) 20px 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(var(--clr-primary-rgb),0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 70%, rgba(var(--clr-secondary-rgb),0.10) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 50%, rgba(var(--clr-accent-rgb),0.05) 0%, transparent 60%);
}

.hero-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--clr-primary-rgb),0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--clr-primary-rgb),0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-content {
    position: relative;
    z-index: var(--z-base);
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    margin-bottom: 20px;
}
.badge-glow {
    display: inline-block;
    padding: 8px 24px;
    border-radius: var(--radius-full);
    background: var(--clr-primary-dim);
    border: 1px solid rgba(var(--clr-primary-rgb),0.3);
    color: var(--clr-primary);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: glow-pulse 3s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
    text-shadow: 0 0 40px rgba(var(--clr-primary-rgb),0.3);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--clr-text-secondary);
    max-width: 700px;
    margin: 0 auto 30px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}
.stat-item {
    text-align: center;
}
.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    font-family: var(--font-display);
    color: var(--clr-primary);
    text-shadow: var(--shadow-glow-primary);
}
.stat-label {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ================================================================
   8. SECTION HEADERS
   ================================================================ */
.section {
    padding: 80px 0;
    position: relative;
    z-index: var(--z-base);
}

.section-header {
    margin-bottom: 50px;
}

.section-badge {
    display: inline-block;
    padding: 5px 16px;
    border-radius: var(--radius-full);
    background: var(--clr-primary-dim);
    border: 1px solid rgba(var(--clr-primary-rgb),0.2);
    color: var(--clr-primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.section-title {
    margin-bottom: 15px;
}

.section-subtitle {
    color: var(--clr-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.6;
}

/* ================================================================
   9. GLASS PANEL (.glass-panel)
   ================================================================ */
.glass-panel {
    background: rgba(17,17,17,0.55);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.glass-panel:hover {
    border-color: var(--clr-border-glow);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(var(--clr-primary-rgb),0.08);
}

/* Panel variants that should NOT lift on hover */
.glass-panel--static:hover {
    transform: none;
    border-color: rgba(255,255,255,0.10);
    box-shadow: var(--shadow-md);
}

/* ================================================================
   10. FEATURE CARDS (.feature-card)
   ================================================================ */
.feature-card {
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow-primary), var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.feature-title {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--clr-text);
    font-family: var(--font-display);
}

.feature-desc {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    color: var(--clr-primary);
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}
.feature-link:hover {
    color: var(--clr-accent);
    gap: 10px;
}

/* ================================================================
   11. BENEFIT ITEMS (.benefit-item)
   ================================================================ */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    align-items: flex-start;
    transition: var(--transition);
}
.benefit-item:hover {
    border-color: var(--clr-border-glow);
    transform: translateY(-2px);
}

.benefit-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary-dim);
    border-radius: var(--radius-md);
    text-align: center;
}

.benefit-text h4 {
    margin-bottom: 6px;
    font-size: 1rem;
    font-family: var(--font-display);
}
.benefit-text p {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ================================================================
   12. TOOL CARDS (.tool-card)
   ================================================================ */
.tool-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    text-decoration: none;
    color: var(--clr-text);
    cursor: pointer;
    transition: var(--transition);
}
.tool-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow-primary), var(--shadow-lg);
    color: var(--clr-text);
    border-color: var(--clr-border-glow);
}

.tool-card-icon {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--clr-primary-rgb),0.08), rgba(var(--clr-secondary-rgb),0.08));
    border-bottom: 1px solid var(--clr-border);
    position: relative;
    overflow: hidden;
}
.tool-card-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
}
.tool-card-icon img {
    max-height: 80px;
    max-width: 80px;
    object-fit: contain;
    position: relative;
    z-index: 1;
}
.tool-icon-placeholder {
    font-size: 3rem;
    position: relative;
    z-index: 1;
}

.tool-card-body {
    padding: 20px;
    flex: 1;
}
.tool-card-title {
    font-size: 1rem;
    margin-bottom: 8px;
    font-family: var(--font-display);
}
.tool-card-desc {
    color: var(--clr-text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.tool-card-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.tool-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

/* ================================================================
   13. TOOL CATEGORIES (.cat-a through .cat-d)
   ================================================================ */
.tool-category {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.cat-a {
    background: rgba(var(--clr-primary-rgb),0.15);
    color: var(--clr-primary);
    border: 1px solid rgba(var(--clr-primary-rgb),0.2);
}
.cat-b {
    background: rgba(var(--clr-secondary-rgb),0.15);
    color: var(--clr-secondary);
    border: 1px solid rgba(var(--clr-secondary-rgb),0.2);
}
.cat-c {
    background: rgba(var(--clr-accent-rgb),0.15);
    color: var(--clr-accent);
    border: 1px solid rgba(var(--clr-accent-rgb),0.2);
}
.cat-d {
    background: rgba(var(--clr-warn-rgb),0.15);
    color: var(--clr-warn);
    border: 1px solid rgba(var(--clr-warn-rgb),0.2);
}

.badge-lg {
    font-size: 0.85rem;
    padding: 6px 16px;
}

/* ================================================================
   14. TOOL DETAIL PAGE
   ================================================================ */
.tool-detail-section {
    padding-top: calc(var(--nav-height) + 30px);
}

.tool-detail-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 30px;
    align-items: start;
}

.tool-detail-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tool-detail-hero {
    display: flex;
    gap: 24px;
    padding: 30px;
    align-items: center;
}
.tool-detail-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary-dim);
    border-radius: var(--radius-lg);
}
.tool-detail-icon img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}
.tool-icon-large {
    font-size: 4rem;
}
.tool-detail-info h2 {
    margin-bottom: 10px;
}
.tool-short-desc {
    color: var(--clr-text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}

.tool-detail-description {
    padding: 24px;
}
.tool-detail-description h3 {
    margin-bottom: 15px;
    color: var(--clr-primary);
    font-family: var(--font-display);
}
.tool-long-desc {
    color: var(--clr-text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

.tool-screenshots {
    padding: 24px;
}
.tool-screenshots h3 {
    margin-bottom: 15px;
    color: var(--clr-primary);
}
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}
.screenshot-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--clr-border);
    transition: var(--transition);
}
.screenshot-item:hover {
    border-color: var(--clr-border-glow);
    box-shadow: var(--shadow-glow-primary);
}
.screenshot-item img {
    width: 100%;
    transition: var(--transition);
}
.screenshot-item:hover img {
    transform: scale(1.05);
}

.tool-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: calc(var(--nav-height) + 20px);
}

.sidebar-card {
    padding: 20px;
}
.sidebar-card h4 {
    margin-bottom: 15px;
    color: var(--clr-primary);
    font-size: 1rem;
    font-family: var(--font-display);
}

.info-list {
    list-style: none;
}
.info-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.info-list li:last-child {
    border-bottom: none;
}
.info-list li > span {
    font-size: 0.8rem;
    color: var(--clr-text-muted);
}

.sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ================================================================
   15. MANUAL CARDS (.manual-card)
   ================================================================ */
.manuals-grid {
    grid-template-columns: repeat(3, 1fr);
}

.manual-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.manual-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow-primary), var(--shadow-lg);
    border-color: var(--clr-border-glow);
}

.manual-cover {
    height: 180px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(var(--clr-secondary-rgb),0.12), rgba(var(--clr-primary-rgb),0.08));
    position: relative;
}
.manual-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}
.manual-card:hover .manual-cover img {
    transform: scale(1.05);
}
.manual-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 3rem;
    color: var(--clr-text-muted);
}
.cover-text {
    font-size: 0.9rem;
    font-weight: 700;
}

.manual-info {
    padding: 15px;
    flex: 1;
}
.manual-title {
    font-size: 1rem;
    margin: 8px 0;
    font-family: var(--font-body);
    font-weight: 600;
}
.manual-desc {
    color: var(--clr-text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.manual-actions {
    display: flex;
    gap: 8px;
    padding: 15px;
    border-top: 1px solid var(--clr-border);
}

/* ================================================================
   16. NEWS CARDS (.news-card)
   ================================================================ */
.news-feed {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-card,
.news-article {
    padding: 24px;
    transition: var(--transition);
}
.news-card:hover,
.news-article:hover {
    border-color: var(--clr-border-glow);
}

.news-article-header {
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
}
.news-date {
    color: var(--clr-text-muted);
    font-size: 0.8rem;
}
.news-category {
    font-size: 0.7rem;
}

.news-title {
    font-size: 1.2rem;
    font-family: var(--font-display);
    font-weight: 700;
}
.news-title a {
    color: var(--clr-text);
    transition: var(--transition);
}
.news-title a:hover {
    color: var(--clr-primary);
}

.news-article-img {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 15px;
    max-height: 300px;
}
.news-article-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-article-body {
    color: var(--clr-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 15px;
}

.news-article-video {
    margin-bottom: 15px;
}
.news-video {
    width: 100%;
    border-radius: var(--radius-md);
}

.news-article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.news-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--clr-border);
}
.attachments-label {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
}

/* Featured News */
.featured-news {
    padding: 0;
    overflow: hidden;
    position: relative;
}
.featured-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 2;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(var(--clr-accent-rgb),0.9);
    color: #000;
    font-size: 0.8rem;
    font-weight: 700;
}
.featured-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 300px;
}
.featured-img {
    overflow: hidden;
}
.featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.featured-text {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.featured-text .news-date {
    display: block;
    margin-bottom: 10px;
    color: var(--clr-text-muted);
    font-size: 0.8rem;
}
.featured-text h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}
.featured-text p {
    color: var(--clr-text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

/* ================================================================
   17. GALLERY GRID (.gallery-grid)
   ================================================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-primary);
    border-color: var(--clr-border-glow);
}

.gallery-img-wrap {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}
.gallery-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease-out);
}
.gallery-item:hover .gallery-img-wrap img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.7) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.35s var(--ease-out);
}
.gallery-item:hover .gallery-overlay {
    opacity: 1;
}
.gallery-zoom-icon {
    font-size: 2rem;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: rgba(var(--clr-primary-rgb),0.05);
}

.gallery-caption {
    padding: 15px;
}
.gallery-caption h4 {
    font-size: 0.95rem;
    font-family: var(--font-body);
    margin-bottom: 5px;
}
.gallery-caption p {
    font-size: 0.8rem;
    color: var(--clr-text-muted);
}

/* Gallery Modal */
.gallery-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.gallery-modal.active {
    display: flex;
}

.gallery-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.gallery-modal-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
}

.gallery-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 2;
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: 1px solid var(--clr-border);
    cursor: pointer;
    transition: var(--transition);
}
.gallery-modal-close:hover {
    background: var(--clr-danger);
    border-color: var(--clr-danger);
}

.gallery-modal-img {
    max-height: 60vh;
    overflow: hidden;
}
.gallery-modal-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-modal-info {
    padding: 20px;
}
.gallery-modal-info h3 {
    margin-bottom: 10px;
}
.gallery-modal-info p {
    color: var(--clr-text-secondary);
    margin-bottom: 15px;
}
.gallery-modal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ================================================================
   18. DOWNLOAD CARDS (.download-card)
   ================================================================ */
.downloads-grid {
    grid-template-columns: repeat(2, 1fr);
}

.download-card {
    display: flex;
    gap: 20px;
    padding: 20px;
    align-items: center;
    transition: var(--transition);
}
.download-card:hover {
    border-color: var(--clr-border-glow);
    transform: translateY(-2px);
}

.download-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary-dim);
    border-radius: var(--radius-md);
    position: relative;
}
.file-type-icon {
    font-size: 2rem;
}
.file-ext-badge {
    position: absolute;
    bottom: -4px;
    right: -4px;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--clr-primary);
    color: #000;
}

.download-info {
    flex: 1;
    min-width: 0;
}
.download-title {
    font-size: 1rem;
    margin-bottom: 5px;
    font-family: var(--font-body);
    font-weight: 600;
}
.download-desc {
    color: var(--clr-text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
    line-height: 1.4;
}
.download-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.meta-item {
    font-size: 0.75rem;
    color: var(--clr-text-muted);
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-shrink: 0;
}

/* ================================================================
   19. NOVEDADES TIMELINE (.updates-timeline)
   ================================================================ */
.updates-timeline,
.novedades-timeline {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.update-item,
.novedad-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    align-items: flex-start;
    transition: var(--transition);
    position: relative;
}
.update-item:hover,
.novedad-item:hover {
    border-color: var(--clr-border-glow);
}

/* Connecting line between timeline items */
.update-item::before {
    content: '';
    position: absolute;
    left: 48px;
    top: 60px;
    bottom: -16px;
    width: 1px;
    background: linear-gradient(180deg, rgba(var(--clr-primary-rgb),0.3), transparent);
    pointer-events: none;
}
.update-item:last-child::before {
    display: none;
}

.update-date,
.novedad-date-badge {
    flex-shrink: 0;
    text-align: center;
    padding: 10px 15px;
    background: var(--clr-primary-dim);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(var(--clr-primary-rgb),0.2);
    min-width: 56px;
}
.update-day,
.date-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-primary);
    font-family: var(--font-display);
    line-height: 1;
}
.update-month,
.date-month {
    display: block;
    font-size: 0.7rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    margin-top: 2px;
}

.update-content h4,
.novedad-title {
    margin-bottom: 5px;
    font-size: 1rem;
    font-family: var(--font-display);
}
.update-content p,
.novedad-body {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.update-tags,
.novedad-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

.novedad-header {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 15px;
}

.novedad-media {
    margin-top: 15px;
    border-radius: var(--radius-md);
    overflow: hidden;
}
.novedad-img {
    width: 100%;
    border-radius: var(--radius-md);
}
.novedad-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

/* ================================================================
   20. CONTACT SECTION
   ================================================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    padding: 24px;
}
.contact-card h3 {
    margin-bottom: 12px;
    color: var(--clr-primary);
    font-family: var(--font-display);
}
.contact-card p {
    color: var(--clr-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.6;
}

/* Social Cards Grid */
.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-top: 15px;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--clr-text);
    transition: var(--transition);
}
.social-card:hover {
    transform: translateY(-3px);
    color: var(--clr-text);
}

.social-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}
.social-name {
    font-size: 0.85rem;
    font-weight: 600;
}

/* Platform-specific hover colors */
.social-whatsapp:hover {
    border-color: #25d366;
    box-shadow: 0 0 20px rgba(37,211,102,0.3);
    background: rgba(37,211,102,0.08);
}
.social-telegram:hover {
    border-color: #0088cc;
    box-shadow: 0 0 20px rgba(0,136,204,0.3);
    background: rgba(0,136,204,0.08);
}
.social-facebook:hover {
    border-color: #1877f2;
    box-shadow: 0 0 20px rgba(24,119,242,0.3);
    background: rgba(24,119,242,0.08);
}
.social-youtube:hover {
    border-color: #ff0000;
    box-shadow: 0 0 20px rgba(255,0,0,0.3);
    background: rgba(255,0,0,0.08);
}
.social-tiktok:hover {
    border-color: #ff0050;
    box-shadow: 0 0 20px rgba(255,0,80,0.3);
    background: rgba(255,0,80,0.08);
}
.social-instagram:hover {
    border-color: #e4405f;
    box-shadow: 0 0 20px rgba(228,64,95,0.3);
    background: rgba(228,64,95,0.08);
}
.social-twitter:hover {
    border-color: #1da1f2;
    box-shadow: 0 0 20px rgba(29,161,242,0.3);
    background: rgba(29,161,242,0.08);
}
.social-discord:hover {
    border-color: #5865f2;
    box-shadow: 0 0 20px rgba(88,101,242,0.3);
    background: rgba(88,101,242,0.08);
}

/* Contact Form */
.contact-form-card {
    padding: 30px;
}
.contact-form-card h3 {
    margin-bottom: 20px;
    color: var(--clr-primary);
    font-family: var(--font-display);
}

/* ================================================================
   21. PAGE HEADER (.page-header)
   ================================================================ */
.page-header {
    padding: calc(var(--nav-height) + 50px) 0 40px;
    background: linear-gradient(180deg, rgba(var(--clr-primary-rgb),0.05) 0%, transparent 100%);
    border-bottom: 1px solid var(--clr-border);
    position: relative;
    z-index: var(--z-base);
}
.page-header-sm {
    padding-bottom: 20px;
}
.page-title {
    margin-bottom: 10px;
}
.page-subtitle {
    color: var(--clr-text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    line-height: 1.6;
}

/* ================================================================
   22. FILTERS BAR (.filters-bar)
   ================================================================ */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    padding: 15px 20px;
    margin-bottom: 30px;
}

.filter-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}
.filter-search .form-control {
    padding-left: 40px;
}
.filter-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--clr-text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.filter-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    padding: 7px 16px;
    border-radius: var(--radius-full);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-btn);
}
.filter-btn:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
    background: var(--clr-primary-dim);
}
.filter-btn.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: #000;
    font-weight: 600;
}

/* ================================================================
   23. TAGS (.tag, .tag-sm)
   ================================================================ */
.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: rgba(var(--clr-primary-rgb),0.1);
    color: var(--clr-primary);
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition-fast);
}
.tag:hover {
    background: rgba(var(--clr-primary-rgb),0.2);
}

.tag-sm {
    padding: 2px 8px;
    font-size: 0.7rem;
}

.tag-accent {
    background: var(--clr-accent-dim);
    color: var(--clr-accent);
}
.tag-accent:hover {
    background: rgba(var(--clr-accent-rgb),0.22);
}

.tag-secondary {
    background: var(--clr-secondary-dim);
    color: var(--clr-secondary);
}
.tag-warn {
    background: rgba(var(--clr-warn-rgb),0.12);
    color: var(--clr-warn);
}

/* ================================================================
   24. BUTTONS
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-btn);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

/* Ripple effect */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease, opacity 0.5s ease;
    opacity: 0;
    pointer-events: none;
}
.btn:active::after {
    width: 300px;
    height: 300px;
    opacity: 1;
    transition: 0s;
}

/* Primary - Cyan */
.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), rgba(var(--clr-primary-rgb),0.8));
    color: #000;
    border-color: var(--clr-primary);
    box-shadow: 0 0 15px rgba(var(--clr-primary-rgb),0.15);
}
.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 0 30px var(--clr-primary-glow), 0 8px 25px rgba(0,0,0,0.3);
    color: #000;
}
.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 10px rgba(var(--clr-primary-rgb),0.2);
}

/* Secondary - Purple */
.btn-secondary {
    background: linear-gradient(135deg, var(--clr-secondary), rgba(var(--clr-secondary-rgb),0.8));
    color: #fff;
    border-color: var(--clr-secondary);
    box-shadow: 0 0 15px rgba(var(--clr-secondary-rgb),0.15);
}
.btn-secondary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 0 30px var(--clr-secondary-glow), 0 8px 25px rgba(0,0,0,0.3);
    color: #fff;
}
.btn-secondary:active {
    transform: scale(0.98);
}

/* Accent - Mint Green */
.btn-accent {
    background: linear-gradient(135deg, var(--clr-accent), rgba(var(--clr-accent-rgb),0.8));
    color: #000;
    border-color: var(--clr-accent);
    box-shadow: 0 0 15px rgba(var(--clr-accent-rgb),0.15);
}
.btn-accent:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 0 30px var(--clr-accent-glow), 0 8px 25px rgba(0,0,0,0.3);
    color: #000;
}
.btn-accent:active {
    transform: scale(0.98);
}

/* Glass - Transparent with border */
.btn-glass {
    background: var(--clr-surface);
    color: var(--clr-text);
    border: 1px solid var(--clr-border);
}
.btn-glass:hover {
    background: var(--clr-surface-hover);
    border-color: var(--clr-border-glow);
    color: var(--clr-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-primary);
}
.btn-glass:active {
    transform: scale(0.98);
}

/* Size variants */
.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: var(--radius-xs);
}
.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
    border-radius: var(--radius-md);
}
.btn-block {
    width: 100%;
}

/* Icon button - circular */
.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition-btn);
}
.btn-icon:hover {
    color: var(--clr-primary);
    border-color: var(--clr-primary);
    background: var(--clr-primary-dim);
    transform: scale(1.1);
}

/* ================================================================
   25. FORMS (.form-control, .form-group)
   ================================================================ */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}
.form-control:hover {
    border-color: rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.04);
}
.form-control:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(var(--clr-primary-rgb),0.1), var(--shadow-glow-primary);
    background: rgba(255,255,255,0.05);
}
.form-control::placeholder {
    color: var(--clr-text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.4)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-control.error {
    border-color: var(--clr-danger);
    box-shadow: 0 0 0 3px rgba(var(--clr-danger-rgb),0.1);
}
.form-error-text {
    color: var(--clr-danger);
    font-size: 0.8rem;
    margin-top: 4px;
}

/* ================================================================
   26. PDF PREVIEW MODAL (.pdf-preview-modal)
   ================================================================ */
.pdf-preview-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.pdf-preview-modal.active {
    display: flex;
}

.pdf-preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.pdf-preview-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(17,17,17,0.9);
    border: 1px solid var(--clr-border);
    display: flex;
    flex-direction: column;
}

.pdf-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--clr-border);
}
.pdf-preview-header h3 {
    font-size: 1.1rem;
    font-family: var(--font-display);
}

.pdf-preview-iframe {
    width: 100%;
    flex: 1;
    min-height: 70vh;
    border: none;
    border-radius: var(--radius-sm);
    background: #fff;
}

.pdf-preview-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--clr-border);
    justify-content: flex-end;
}

/* ================================================================
   27. FOOTER (.main-footer)
   ================================================================ */
.main-footer {
    background: rgba(17,17,17,0.55);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-top: 1px solid var(--clr-border);
    border-radius: 0;
    padding: 50px 0 30px;
    margin-top: 0;
    position: relative;
    z-index: var(--z-base);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-brand .footer-title {
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-family: var(--font-display);
}
.footer-desc {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.footer-col h4 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    color: var(--clr-primary);
    font-family: var(--font-display);
}

.footer-links li {
    margin-bottom: 8px;
}
.footer-links a {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--clr-primary);
    padding-left: 4px;
}

.social-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.social-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--clr-text-secondary);
    transition: var(--transition);
}
.social-btn:hover {
    border-color: var(--clr-primary);
    background: var(--clr-primary-dim);
    color: var(--clr-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--clr-border);
}
.footer-bottom p {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
}
.footer-credits {
    margin-top: 4px;
}
.footer-credits a {
    color: var(--clr-primary);
}

/* ================================================================
   28. ALERTS (.alert, .alert-success, .alert-error)
   ================================================================ */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.alert-success {
    background: rgba(var(--clr-accent-rgb),0.08);
    border: 1px solid rgba(var(--clr-accent-rgb),0.25);
    color: var(--clr-accent);
}

.alert-error {
    background: rgba(var(--clr-danger-rgb),0.08);
    border: 1px solid rgba(var(--clr-danger-rgb),0.25);
    color: var(--clr-danger);
}

.alert-warning {
    background: rgba(var(--clr-warn-rgb),0.08);
    border: 1px solid rgba(var(--clr-warn-rgb),0.25);
    color: var(--clr-warn);
}

.alert-info {
    background: var(--clr-primary-dim);
    border: 1px solid rgba(var(--clr-primary-rgb),0.25);
    color: var(--clr-primary);
}

.alert-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}
.alert-close {
    margin-left: auto;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition-fast);
}
.alert-close:hover {
    opacity: 1;
}

/* ================================================================
   29. EMPTY STATES (.empty-state)
   ================================================================ */
.empty-state {
    padding: 60px 20px;
    text-align: center;
}
.empty-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 15px;
    opacity: 0.5;
}
.empty-state h3 {
    margin-bottom: 8px;
    font-family: var(--font-display);
    color: var(--clr-text-secondary);
}
.empty-state p {
    color: var(--clr-text-muted);
    max-width: 400px;
    margin: 0 auto 20px;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ================================================================
   30. THEME TOGGLE - Light Mode
   ================================================================ */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: inline; }

[data-theme="light"] {
    --clr-bg:             #e8eaf6;
    --clr-bg-2:           #f0f2ff;
    --clr-surface:        rgba(255,255,255,0.65);
    --clr-surface-hover:  rgba(255,255,255,0.85);
    --clr-border:         rgba(0,0,0,0.08);
    --clr-border-glow:    rgba(0,200,255,0.45);

    --clr-text:           #0f172a;
    --clr-text-secondary: rgba(15,23,42,0.65);
    --clr-text-muted:     rgba(15,23,42,0.4);

    --glass-bg:           rgba(255,255,255,0.7);
    --glass-border:       rgba(0,0,0,0.1);

    --shadow-sm:   0 2px 8px rgba(0,0,0,0.08);
    --shadow-md:   0 8px 32px rgba(0,0,0,0.1);
    --shadow-lg:   0 16px 48px rgba(0,0,0,0.12);
}

[data-theme="light"] .theme-toggle .icon-sun  { display: inline; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

[data-theme="light"] body {
    background: var(--clr-bg);
}

[data-theme="light"] .main-nav {
    background: rgba(240,242,255,0.8);
    border-bottom-color: rgba(0,0,0,0.06);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

[data-theme="light"] .hero-gradient {
    background:
        radial-gradient(ellipse at 30% 30%, rgba(var(--clr-primary-rgb),0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 70%, rgba(var(--clr-secondary-rgb),0.06) 0%, transparent 60%);
}

[data-theme="light"] .hero-grid-lines {
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
}

[data-theme="light"] .bg-particles {
    background:
        radial-gradient(ellipse at 15% 50%, rgba(var(--clr-primary-rgb),0.04) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 20%, rgba(var(--clr-secondary-rgb),0.04) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 85%, rgba(var(--clr-accent-rgb),0.03) 0%, transparent 55%);
}

[data-theme="light"] .form-control {
    background: rgba(255,255,255,0.8);
    border-color: rgba(0,0,0,0.1);
    color: #0f172a;
}

[data-theme="light"] ::selection {
    background: var(--clr-primary);
    color: #fff;
}

/* Legacy class support */
.light-mode {
    --clr-bg:             #e8eaf6;
    --clr-bg-2:           #f0f2ff;
    --clr-surface:        rgba(255,255,255,0.65);
    --clr-surface-hover:  rgba(255,255,255,0.85);
    --clr-border:         rgba(0,0,0,0.08);
    --clr-text:           #0f172a;
    --clr-text-secondary: rgba(15,23,42,0.65);
    --clr-text-muted:     rgba(15,23,42,0.4);
    --glass-bg:           rgba(255,255,255,0.7);
    --glass-border:       rgba(0,0,0,0.1);
    --shadow-md:          0 8px 32px rgba(0,0,0,0.1);
}

/* ================================================================
   31. ANIMATIONS
   ================================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(var(--clr-primary-rgb),0.15);
    }
    50% {
        box-shadow: 0 0 25px rgba(var(--clr-primary-rgb),0.35), 0 0 50px rgba(var(--clr-primary-rgb),0.1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Animation classes */
.animate-fadeInUp {
    opacity: 0;
    animation: fadeInUp 0.6s var(--ease-out) forwards;
}
.animate-fadeIn {
    opacity: 0;
    animation: fadeIn 0.5s var(--ease-out) forwards;
}
.animate-float {
    animation: float 6s ease-in-out infinite;
}
.animate-glow {
    animation: glow-pulse 3s ease-in-out infinite;
}

/* Staggered delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--clr-surface) 25%, var(--clr-surface-hover) 50%, var(--clr-surface) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ================================================================
   MISC COMPONENTS
   ================================================================ */

/* Content Layout (Sidebar pattern) */
.content-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}
.content-main {
    min-width: 0;
}
.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.sidebar-widget {
    padding: 20px;
}
.sidebar-widget h4 {
    margin-bottom: 15px;
    font-size: 1rem;
    color: var(--clr-primary);
    font-family: var(--font-display);
}
.widget-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--clr-border);
}
.widget-list li:last-child {
    border-bottom: none;
}
.widget-list a {
    color: var(--clr-text-secondary);
    font-size: 0.9rem;
}
.widget-list a:hover {
    color: var(--clr-primary);
}
.widget-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* CTA Section */
.cta-section {
    padding-bottom: 100px;
}
.cta-box {
    padding: 60px 40px;
    text-align: center;
    background: linear-gradient(135deg, rgba(var(--clr-primary-rgb),0.08), rgba(var(--clr-secondary-rgb),0.08));
    border: 1px solid rgba(var(--clr-primary-rgb),0.15);
    border-radius: var(--radius-xl);
}
.cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 15px;
}
.cta-desc {
    color: var(--clr-text-secondary);
    max-width: 500px;
    margin: 0 auto 25px;
    font-size: 1.05rem;
}
.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Modal Overlay (generic) */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.active {
    display: flex;
}
.modal-content {
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 30px;
    border-radius: var(--radius-lg);
    background: rgba(17,17,17,0.95);
    border: 1px solid var(--clr-border);
}

/* Ad Slots */
.ad-slot {
    margin: 15px 0;
    text-align: center;
    min-height: 20px;
}
.ad-slot:empty {
    display: none;
}

/* Maintenance Page */
.maintenance-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

/* Tooltip */
.tooltip {
    position: relative;
}
.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 6px 12px;
    border-radius: var(--radius-xs);
    background: var(--clr-bg-2);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 10;
}
.tooltip:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ================================================================
   32. RESPONSIVE
   ================================================================ */

/* ---- Tablet landscape ---- */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .tool-detail-layout {
        grid-template-columns: 1fr;
    }
    .tool-detail-sidebar {
        position: static;
    }
    .featured-content {
        grid-template-columns: 1fr;
    }
    .featured-img {
        max-height: 250px;
    }
    .downloads-grid {
        grid-template-columns: 1fr;
    }
    .content-layout {
        grid-template-columns: 1fr;
    }
}

/* ---- Tablet portrait / small laptops ---- */
@media (max-width: 768px) {
    /* Nav collapse */
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(8,12,20,0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        transform: translateY(-120%);
        transition: transform 0.35s var(--ease-out);
        border-bottom: 1px solid var(--clr-border);
        box-shadow: 0 10px 40px rgba(0,0,0,0.6);
        max-height: calc(100vh - var(--nav-height));
        overflow-y: auto;
    }
    .nav-menu.active {
        transform: translateY(0);
    }
    .nav-toggle {
        display: flex;
    }
    .nav-menu a {
        padding: 12px 16px;
        font-size: 1rem;
        border-radius: var(--radius-sm);
    }

    /* Grid collapse to single or 2 cols */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    .manuals-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }

    /* Hero adjustments */
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    .hero-stats {
        gap: 20px;
    }
    .stat-number {
        font-size: 2rem;
    }

    /* Cards adjust */
    .download-card {
        flex-direction: column;
        text-align: center;
    }
    .download-actions {
        flex-direction: row;
        justify-content: center;
    }

    .tool-detail-hero {
        flex-direction: column;
        text-align: center;
    }

    .section {
        padding: 50px 0;
    }

    .page-header {
        padding: calc(var(--nav-height) + 30px) 0 30px;
    }

    /* Featured news */
    .featured-content {
        grid-template-columns: 1fr;
    }
    .featured-text {
        padding: 24px;
    }
}

/* ---- Mobile ---- */
@media (max-width: 480px) {
    :root {
        --nav-height: 60px;
    }

    body {
        font-size: 15px;
    }

    .container {
        padding: 0 var(--sp-4);
    }

    .manuals-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .filters-bar {
        flex-direction: column;
    }
    .filter-search {
        min-width: 100%;
    }
    .filter-categories {
        justify-content: center;
        width: 100%;
    }

    .section-header {
        margin-bottom: 30px;
    }

    .benefit-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .social-grid {
        grid-template-columns: 1fr 1fr;
    }

    .cta-box {
        padding: 40px 20px;
    }

    .pdf-preview-content {
        padding: 16px;
    }
    .pdf-preview-iframe {
        min-height: 50vh;
    }

    h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
    h2 { font-size: clamp(1.3rem, 5vw, 1.8rem); }
    h3 { font-size: clamp(1.1rem, 4vw, 1.4rem); }

    .nav-logo {
        font-size: 1.2rem;
    }
    .logo-icon {
        font-size: 1.4rem;
    }
}

/* ---- Print ---- */
@media print {
    .main-nav,
    .main-footer,
    .bg-particles,
    .nav-toggle,
    .btn,
    .pdf-preview-modal,
    .gallery-modal {
        display: none !important;
    }
    body {
        background: #fff;
        color: #000;
    }
    .glass-panel {
        background: #fff;
        border: 1px solid #ddd;
        box-shadow: none;
        backdrop-filter: none;
    }
}