/**
 * IT-CAFFE v3.0 - Main Stylesheet
 * Tailwind CSS + Custom Styles
 * Full responsive: 320px - 8K
 * Retina & High DPI Support
 */

/* ========================================
   CUSTOM PROPERTIES (CSS Variables)
   ======================================== */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: #16161f;
    --color-bg-elevated: #1e1e2a;
    
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b7b;
    
    --color-primary: #8DC63F;
    --color-primary-light: #A4D65E;
    --color-primary-dark: #6FB32D;
    
    --color-accent: #8DC63F;
    --color-accent-secondary: #6FB32D;
    
    --color-gradient-start: #8DC63F;
    --color-gradient-end: #8DC63F;
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    /* Typography - Fluid scaling */
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-display: "Space Grotesk", var(--font-sans);
    --font-mono: "JetBrains Mono", "Fira Code", monospace;
    
    /* Fluid font sizes: min + (max - min) * viewport scaling */
    --text-xs: clamp(0.75rem, 0.7rem + 0.15vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.2vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.35vw, 1.375rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.5vw, 1.75rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 0.7vw, 2.25rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1vw, 3rem);
    --text-4xl: clamp(2.25rem, 1.8rem + 1.5vw, 4rem);
    --text-5xl: clamp(3rem, 2.2rem + 2.5vw, 6rem);
    --text-6xl: clamp(3.75rem, 2.5rem + 4vw, 8rem);
    
    /* Spacing - Fluid */
    --space-1: clamp(0.25rem, 0.2rem + 0.1vw, 0.375rem);
    --space-2: clamp(0.5rem, 0.4rem + 0.2vw, 0.75rem);
    --space-3: clamp(0.75rem, 0.6rem + 0.3vw, 1rem);
    --space-4: clamp(1rem, 0.8rem + 0.4vw, 1.5rem);
    --space-6: clamp(1.5rem, 1.2rem + 0.6vw, 2.25rem);
    --space-8: clamp(2rem, 1.5rem + 1vw, 3rem);
    --space-12: clamp(3rem, 2rem + 2vw, 5rem);
    --space-16: clamp(4rem, 2.5rem + 3vw, 7rem);
    --space-20: clamp(5rem, 3rem + 4vw, 10rem);
    --space-24: clamp(6rem, 4rem + 5vw, 12rem);
    
    /* Container widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    --container-3xl: 1920px;
    --container-4xl: 2560px;
    --container-5xl: 3840px;
    
    /* Adaptive container max-width */
    --container-max: min(95vw, 1920px);
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Z-index layers */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-toast: 600;
    --z-tooltip: 700;
}

/* ========================================
   ULTRA-WIDE SCREEN ADJUSTMENTS (4K-8K)
   ======================================== */
@media (min-width: 2560px) {
    :root {
        --container-max: min(90vw, 2400px);
    }
}

@media (min-width: 3840px) {
    :root {
        --container-max: min(85vw, 3200px);
        --text-base: clamp(1.125rem, 1rem + 0.2vw, 1.375rem);
    }
}

@media (min-width: 5120px) {
    :root {
        --container-max: min(80vw, 4000px);
        --text-base: clamp(1.25rem, 1.1rem + 0.15vw, 1.5rem);
    }
}

@media (min-width: 7680px) {
    :root {
        --container-max: min(75vw, 5500px);
        --text-base: clamp(1.5rem, 1.3rem + 0.1vw, 1.75rem);
    }
}

/* ========================================
   RETINA & HIGH DPI ADJUSTMENTS
   ======================================== */
@media (-webkit-min-device-pixel-ratio: 1.5),
       (min-resolution: 144dpi),
       (min-resolution: 1.5dppx) {
    :root {
        --color-border: rgba(255, 255, 255, 0.1);
    }
}

@media (-webkit-min-device-pixel-ratio: 2),
       (min-resolution: 192dpi),
       (min-resolution: 2dppx) {
    :root {
        --color-border: rgba(255, 255, 255, 0.12);
    }
}

/* ========================================
   BASE RESET & DEFAULTS
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Adjust base font size for Windows scaling */
@media (resolution: 120dpi) {
    html { font-size: 14px; }
}
@media (resolution: 144dpi) {
    html { font-size: 13px; }
}
@media (resolution: 168dpi) {
    html { font-size: 12px; }
}
@media (resolution: 192dpi) {
    html { font-size: 11px; }
}

/* Reset for ultra-high resolution */
@media (min-width: 3840px) {
    html { font-size: 16px; }
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: 1em;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

/* ========================================
   LAYOUT UTILITIES
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-6);
    }
}

@media (min-width: 1280px) {
    .container {
        padding-inline: var(--space-8);
    }
}

.section {
    padding-block: var(--space-16);
}

.section-lg {
    padding-block: var(--space-20);
}

/* Grid system */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }

@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1280px) {
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .xl\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary-light); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary-light);
    background: rgba(99, 102, 241, 0.1);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: clamp(48px, 4vw, 64px);
    height: clamp(48px, 4vw, 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
}

.card-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.card-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: var(--space-3) 0;
    background: rgba(10, 10, 15, 0.95);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-icon {    width: clamp(32px, 2.5vw, 40px);    height: clamp(32px, 2.5vw, 40px);    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));    border-radius: var(--radius-md);    display: flex;    align-items: center;    justify-content: center;    font-weight: 700;    font-size: var(--text-sm);}.logo-img {    width: clamp(36px, 3vw, 48px);    height: auto;}

.nav {
    display: none;
}

@media (min-width: 1024px) {
    .nav {
        display: flex;
        align-items: center;
        gap: var(--space-8);
    }
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Language switcher */
.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--color-border-hover);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-2);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    min-width: 140px;
    z-index: var(--z-dropdown);
}

.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.lang-option:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.lang-option.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary-light);
}

/* Mobile menu button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    padding: var(--space-20) var(--space-6) var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mobile-nav-link {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--space-20) + 80px);
    padding-bottom: var(--space-16);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(34, 211, 238, 0.1) 0%, transparent 50%);
    animation: heroGlow 20s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-5%, -5%) rotate(10deg); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: clamp(40px, 5vw, 80px) clamp(40px, 5vw, 80px);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    max-width: 900px;
}

@media (min-width: 1920px) {
    .hero-content {
        max-width: 1100px;
    }
}

@media (min-width: 3840px) {
    .hero-content {
        max-width: 1600px;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--color-primary-light);
    margin-bottom: var(--space-6);
}

.hero-badge i {
    font-size: var(--text-xs);
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.hero-title .accent {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    max-width: 700px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-8);
}

.hero-stat {
    text-align: left;
}

.hero-stat-value {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* ========================================
   SECTIONS
   ======================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

@media (min-width: 1920px) {
    .section-header {
        max-width: 900px;
    }
}

.section-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
}

/* Services section */
.services-grid {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1920px) {
    .services-grid {
        gap: var(--space-8);
    }
}

/* About section */
.about-content {
    display: grid;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
}

.about-text p {
    font-size: var(--text-base);
    margin-bottom: var(--space-4);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.about-feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
}

.about-feature-text {
    font-size: var(--text-sm);
    font-weight: 500;
}

.about-visual {
    position: relative;
    aspect-ratio: 1;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.about-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(34, 211, 238, 0.15) 0%, transparent 50%);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(34, 211, 238, 0.05));
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.cta-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.footer-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.footer-legal a:hover {
    color: var(--color-text-secondary);
}

/* ========================================
   ANIMATIONS
   ======================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-left"] {
    transform: translateX(-40px);
}

[data-animate="fade-right"] {
    transform: translateX(40px);
}

[data-animate="scale"] {
    transform: scale(0.9);
}

/* Stagger animation delays */
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }
[data-delay="400"] { transition-delay: 400ms; }
[data-delay="500"] { transition-delay: 500ms; }

/* ========================================
   UTILITIES
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden { display: none !important; }

@media (max-width: 639px) {
    .sm\:hidden { display: none !important; }
}

@media (max-width: 767px) {
    .md\:hidden { display: none !important; }
}

@media (max-width: 1023px) {
    .lg\:hidden { display: none !important; }
}

/* Tech logos grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .tech-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .tech-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

@media (min-width: 1280px) {
    .tech-grid {
        grid-template-columns: repeat(8, 1fr);
    }
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.tech-item:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.tech-item i {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2);
    color: var(--color-text-secondary);
}

.tech-item span {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}