/* ========================================
   ULTRA-ADVANCED CSS VARIABLES SYSTEM
   ======================================== */
:root {
    /* Primary Color System */
    --primary: #ffffff;
    --primary-dim: rgba(255, 255, 255, 0.8);
    --primary-light: rgba(255, 255, 255, 0.9);
    --primary-dark: rgba(255, 255, 255, 0.6);
    --primary-ultra-light: rgba(255, 255, 255, 0.95);
    --primary-ultra-dark: rgba(255, 255, 255, 0.4);

    /* Secondary Color System */
    --secondary: #000000;
    --secondary-light: rgba(0, 0, 0, 0.8);
    --secondary-dark: rgba(0, 0, 0, 0.9);
    --secondary-ultra-light: rgba(0, 0, 0, 0.6);
    --secondary-ultra-dark: rgba(0, 0, 0, 0.95);

    /* Accent Color System */
    --accent: #0a84ff;
    --accent-dim: rgba(10, 132, 255, 0.5);
    --accent-light: rgba(10, 132, 255, 0.7);
    --accent-dark: rgba(10, 132, 255, 0.3);
    --accent-ultra-light: rgba(10, 132, 255, 0.9);
    --accent-ultra-dark: rgba(10, 132, 255, 0.1);
    --accent-glow: rgba(10, 132, 255, 0.4);
    --accent-shadow: rgba(10, 132, 255, 0.2);

    /* Status Colors */
    --success: #30d158;
    --success-dim: rgba(48, 209, 88, 0.5);
    --success-light: rgba(48, 209, 88, 0.7);
    --success-dark: rgba(48, 209, 88, 0.3);
    --warning: #ffd60a;
    --warning-dim: rgba(255, 214, 10, 0.5);
    --warning-light: rgba(255, 214, 10, 0.7);
    --warning-dark: rgba(255, 214, 10, 0.3);
    --error: #ff453a;
    --error-dim: rgba(255, 69, 58, 0.5);
    --error-light: rgba(255, 69, 58, 0.7);
    --error-dark: rgba(255, 69, 58, 0.3);

    /* Neutral Color System */
    --neutral-50: rgba(255, 255, 255, 0.05);
    --neutral-100: rgba(255, 255, 255, 0.1);
    --neutral-150: rgba(255, 255, 255, 0.15);
    --neutral-200: rgba(255, 255, 255, 0.2);
    --neutral-250: rgba(255, 255, 255, 0.25);
    --neutral-300: rgba(255, 255, 255, 0.3);
    --neutral-400: rgba(255, 255, 255, 0.4);
    --neutral-500: rgba(255, 255, 255, 0.5);
    --neutral-600: rgba(255, 255, 255, 0.6);
    --neutral-700: rgba(255, 255, 255, 0.7);
    --neutral-800: rgba(18, 18, 18, 0.8);
    --neutral-850: rgba(15, 15, 15, 0.85);
    --neutral-900: rgba(10, 10, 10, 0.95);
    --neutral-950: rgba(5, 5, 5, 0.98);

    /* Blur System */
    --blur-ultra-light: 2px;
    --blur-light: 5px;
    --blur-medium: 10px;
    --blur-strong: 20px;
    --blur-ultra-strong: 40px;
    --blur-extreme: 60px;

    /* Transition System */
    --transition-ultra-fast: 0.1s;
    --transition-fast: 0.2s;
    --transition-medium: 0.4s;
    --transition-slow: 0.8s;
    --transition-ultra-slow: 1.2s;
    --transition-extreme: 2s;

    /* Easing Functions */
    --cubic-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --cubic-smooth: cubic-bezier(0.65, 0, 0.35, 1);
    --cubic-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --cubic-back: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --cubic-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --cubic-circ: cubic-bezier(0.075, 0.82, 0.165, 1);
    --cubic-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
    --cubic-quint: cubic-bezier(0.23, 1, 0.320, 1);

    /* Typography System */
    --font-ultra-thin: 100;
    --font-thin: 300;
    --font-light: 400;
    --font-regular: 500;
    --font-medium: 600;
    --font-bold: 700;
    --font-ultra-bold: 800;
    --font-black: 900;

    /* Shadow System */
    --shadow-ultra-soft: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 15px 40px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 20px 50px rgba(0, 0, 0, 0.25);
    --shadow-ultra-strong: 0 30px 70px rgba(0, 0, 0, 0.35);
    --shadow-extreme: 0 40px 100px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--accent-glow);
    --shadow-glow-strong: 0 0 50px var(--accent-glow);

    /* Spacing System */
    --space-0: 0;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4rem;
    --space-8: 6rem;
    --space-9: 8rem;
    --space-10: 10rem;
    --space-12: 12rem;
    --space-16: 16rem;
    --space-20: 20rem;

    /* Gradient System */
    --bg-gradient-1: linear-gradient(135deg, #000000, #121212);
    --bg-gradient-2: linear-gradient(45deg, #080808, #000000);
    --bg-gradient-3: linear-gradient(225deg, #1a1a1a, #000000);
    --bg-gradient-4: radial-gradient(circle at center, #1a1a1a, #000000);
    --bg-gradient-5: conic-gradient(from 0deg, #000000, #1a1a1a, #000000);

    --card-gradient: linear-gradient(145deg, rgba(40, 40, 40, 0.6), rgba(20, 20, 20, 0.6));
    --card-gradient-hover: linear-gradient(145deg, rgba(50, 50, 50, 0.7), rgba(30, 30, 30, 0.7));
    --card-gradient-active: linear-gradient(145deg, rgba(60, 60, 60, 0.8), rgba(40, 40, 40, 0.8));

    --glass-gradient-1: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    --glass-gradient-2: linear-gradient(145deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
    --glass-gradient-3: linear-gradient(155deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));

    --accent-gradient-1: linear-gradient(135deg, var(--accent), var(--accent-light));
    --accent-gradient-2: linear-gradient(45deg, var(--accent-dark), var(--accent));
    --accent-gradient-3: radial-gradient(circle, var(--accent-light), var(--accent-dark));

    /* Layout System */
    --section-size: min(90vw, 1400px);
    --container-sm: min(95vw, 640px);
    --container-md: min(92vw, 768px);
    --container-lg: min(90vw, 1024px);
    --container-xl: min(88vw, 1280px);
    --container-2xl: min(85vw, 1536px);

    /* Border Radius System */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-3xl: 3rem;
    --radius-full: 9999px;

    /* Z-Index System */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ========================================
   PERFORMANCE OPTIMIZATIONS
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    -webkit-tap-highlight-color: transparent;
}

/* GPU Acceleration for Performance */
.gpu-accelerated,
.glass-card,
.nav-link,
.btn,
.project-card,
button,
a {
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Hardware Acceleration */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    height: 100%;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background: var(--bg-gradient-1);
    color: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
    font-weight: var(--font-regular);
    letter-spacing: -0.01em;
    word-spacing: 0.1em;
}

/* ========================================
   ULTRA-ADVANCED GLASSMORPHISM SYSTEM
   ======================================== */
.glass-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-medium) var(--cubic-bounce);
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0.6;
    pointer-events: none;
}

.glass-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}


.footer-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-medium) var(--cubic-bounce);
}

.footer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0.6;
    pointer-events: none;
}

.footer-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}



/* ========================================
   COPILOT ANIMATIONS SYSTEM
   ======================================== */
@keyframes copilot-float {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    25% {
        transform: translateY(-10px) rotate(1deg);
    }

    50% {
        transform: translateY(-5px) rotate(0deg);
    }

    75% {
        transform: translateY(-15px) rotate(-1deg);
    }
}

@keyframes copilot-pulse {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

@keyframes copilot-glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(10, 132, 255, 0.3);
    }

    50% {
        box-shadow: 0 0 40px rgba(10, 132, 255, 0.6);
    }
}

@keyframes copilot-shimmer {
    0% {
        transform: translateX(-100%) skewX(-15deg);
    }

    100% {
        transform: translateX(200%) skewX(-15deg);
    }
}

@keyframes copilot-bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-20px);
    }

    60% {
        transform: translateY(-10px);
    }
}

@keyframes copilot-rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes copilot-scale {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

@keyframes copilot-slide-in {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes copilot-fade-in {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes copilot-wave {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(20deg);
    }

    75% {
        transform: rotate(-20deg);
    }
}

/* Copilot Animation Classes */
.copilot-float {
    animation: copilot-float 6s ease-in-out infinite;
}

.copilot-pulse {
    animation: copilot-pulse 2s ease-in-out infinite;
}

.copilot-glow {
    animation: copilot-glow 3s ease-in-out infinite;
}

.copilot-shimmer {
    position: relative;
    overflow: hidden;
}

.copilot-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: copilot-shimmer 2s infinite;
}

.copilot-bounce {
    animation: copilot-bounce 2s infinite;
}

.copilot-scale {
    animation: copilot-scale 2s ease-in-out infinite;
}

/* ========================================
   NAVIGATION SYSTEM
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-4) var(--space-3);
    z-index: var(--z-fixed);
    transition: all var(--transition-medium) var(--cubic-smooth);
    background: rgba(0, 0, 0, 0.2);
}

.navbar.scrolled {
    background: var(--neutral-900);
    padding: var(--space-3) var(--space-3);
    box-shadow: var(--shadow-strong);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.container {
    max-width: var(--section-size);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.nav-glass {
    padding: var(--space-3) var(--space-4);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    letter-spacing: -0.02em;
    color: var(--primary);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast) var(--cubic-bounce);
}

.logo:hover {
    transform: scale(1.05);
    color: var(--accent);
}

.logo-text {
    display: inline-block;
    transition: transform var(--transition-fast) var(--cubic-bounce);
}

.logo:hover .logo-text {
    transform: translateY(-100%);
}

.logo-hover {
    position: absolute;
    top: 100%;
    left: 0;
    color: var(--accent);
    transition: transform var(--transition-fast) var(--cubic-bounce);
}

.logo:hover .logo-hover {
    transform: translateY(-100%);
}

.nav-links {
    display: flex;
    gap: var(--space-5);
    align-items: center;
}

.nav-link {
    position: relative;
    padding: var(--space-2) var(--space-3);
    font-weight: var(--font-medium);
    font-size: 1rem;
    letter-spacing: 0.02em;
    color: var(--primary-dim);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast) var(--cubic-smooth);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-link:hover {
    color: var(--primary);
    background: var(--neutral-100);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transform: translateX(-50%);
    transition: width var(--transition-fast) var(--cubic-bounce);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link.active {
    color: var(--primary);
    background: var(--neutral-150);
}

/* Mobile Navigation */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: var(--z-modal);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast) var(--cubic-smooth);
}

.mobile-nav-toggle:hover {
    background: var(--neutral-100);
    transform: scale(1.1);
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium) var(--cubic-smooth);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    pointer-events: none;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.mobile-nav-content {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
   background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
   border-left: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-8) var(--space-6);
    overflow-y: auto;
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-medium) var(--cubic-smooth);
    display: flex;
    flex-direction: column;
}

.mobile-nav-overlay.active .mobile-nav-content {
    transform: translateX(0);
    opacity: 1;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
   border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.mobile-logo {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
   color: var(--primary);
   background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mobile-close-btn {
   background: rgba(255, 255, 255, 0.1);
    border: none;
   color: var(--primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast) var(--cubic-smooth);
   border: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-close-btn:hover {
   background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
   border-color: rgba(255, 255, 255, 0.3);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    flex: 1;
    justify-content: center;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
   background: rgba(255, 255, 255, 0.08);
    border: none;
    border-radius: var(--radius-xl);
   color: var(--primary);
    font-size: 1.1rem;
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-fast) var(--cubic-bounce);
    width: 100%;
    text-align: left;
   border: 1px solid rgba(255, 255, 255, 0.12);
}

.mobile-nav-link:hover {
   background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
    box-shadow: var(--shadow-soft);
   border-color: rgba(255, 255, 255, 0.2);
}

.mobile-nav-link svg {
   color: var(--accent);
    flex-shrink: 0;
}

/* ========================================
   BUTTON SYSTEM
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-weight: var(--font-medium);
    font-size: 1rem;
    line-height: 1.5;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast) var(--cubic-bounce);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn:active {
    transform: scale(0.98);
}

.btn:focus {
    outline: 2px solid var(--accent-dim);
    outline-offset: 2px;
}

/* Button Variants */
.btn-primary {
    background: var(--accent-gradient-1);
    color: white;
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    background: var(--accent-gradient-2);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
    background: var(--glass-gradient-1);
    color: var(--primary);
    border: 1px solid var(--neutral-200);
    backdrop-filter: blur(var(--blur-light));
    -webkit-backdrop-filter: blur(var(--blur-light));
}

.btn-secondary:hover {
    background: var(--glass-gradient-2);
    border-color: var(--neutral-300);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-ghost {
    background: transparent;
    color: var(--primary-dim);
    border: 1px solid var(--neutral-200);
}

.btn-ghost:hover {
    background: var(--neutral-100);
    color: var(--primary);
    border-color: var(--neutral-300);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 1.125rem;
}

.btn-xl {
    padding: var(--space-5) var(--space-8);
    font-size: 1.25rem;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--bg-gradient-1);
    padding: var(--space-8) var(--space-4);
}

.hero-3d-canvas,
.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom right, rgba(0, 0, 0, 0.5), transparent, rgba(0, 0, 0, 0.5));
}

.glow {
    position: absolute;
    background: radial-gradient(circle at center, var(--accent-glow), transparent 70%);
    border-radius: 50%;
    width: 60vw;
    height: 60vw;
    opacity: 0.1;
    filter: blur(60px);
    z-index: -1;
    animation: copilot-pulse 20s infinite alternate ease-in-out;
}

.glow-primary {
    top: 10%;
    left: 20%;
    background: radial-gradient(circle at center, var(--accent-glow), transparent 70%);
}

.glow-secondary {
    bottom: 20%;
    right: 10%;
    background: radial-gradient(circle at center, var(--success-dim), transparent 70%);
    animation-delay: -10s;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 10;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: var(--font-black);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--primary), var(--accent), var(--primary-dim));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: var(--font-light);
    color: var(--primary-dim);
    margin-bottom: var(--space-8);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-8);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.feature-card {
    padding: var(--space-6);
    text-align: center;
}

.feature-icon {
    color: var(--accent);
    margin-bottom: var(--space-4);
}

.feature-card p {
    color: var(--primary);
    font-weight: var(--font-medium);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
    align-items: center;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.7;
    transition: opacity var(--transition-fast) var(--cubic-smooth);
    cursor: pointer;
    color: var(--primary-dim);
}

.scroll-indicator:hover {
    opacity: 1;
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects-section {
    padding: var(--space-10) 0;
    background: var(--bg-gradient-2);
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-black);
    margin-bottom: var(--space-4);
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--accent-gradient-1);
    border-radius: var(--radius-sm);
}

.section-description {
    font-size: 1.25rem;
    color: var(--primary-dim);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 450px);
    justify-content: center;
}

.btn.disabled {
    pointer-events: none;
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(10%);
    transition: none !important;
}

.project-card {
    background: var(--card-gradient);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-medium) var(--cubic-bounce);
    position: relative;
    border: 1px solid var(--neutral-200);
    height: 350px;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.8));
    z-index: 1;
    transition: opacity var(--transition-medium) var(--cubic-smooth);
}

.project-card:hover {
    transform: translateY(-12px) rotateX(5deg) rotateY(5deg) scale(1.02);
    box-shadow: var(--shadow-ultra-strong);
    border-color: var(--accent-dim);
}

.project-card:hover::before {
    opacity: 0.6;
}

.project-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
    transition: transform var(--transition-slow) var(--cubic-smooth);
}

.project-card:hover .project-bg {
    transform: scale(1.1);
}

.project-content {
    position: relative;
    z-index: 2;
    padding: var(--space-6);
    margin-top: auto;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
}

.project-title {
    font-size: 1.8rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.project-description {
    color: var(--primary-dim);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--accent);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-bold);
    z-index: 3;
    transform: translateZ(20px);
    box-shadow: var(--shadow-soft);
}

.project-stats {
    position: absolute;
    bottom: var(--space-4);
    left: var(--space-4);
    display: flex;
    gap: var(--space-4);
    font-size: 0.875rem;
    color: var(--primary-dim);
    z-index: 3;
}

.project-stat {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.projects-cta {
    text-align: center;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-section {
    padding: var(--space-10) 0;
    background: var(--bg-gradient-1);
    position: relative;
    overflow: hidden;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    margin-bottom: var(--space-10);
}

.about-title {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-4);
}

.about-description {
    color: var(--primary-dim);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

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

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.feature-icon-wrapper {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--accent-gradient-1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-item h4 {
    color: var(--primary);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-1);
}

.feature-item p {
    color: var(--primary-dim);
    font-size: 0.9rem;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-card {
    padding: var(--space-8);
    text-align: center;
    height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.about-icon {
    width: 128px;
    height: 128px;
    margin-bottom: var(--space-6);
   background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
   flex-shrink: 0;
   aspect-ratio: 1 / 1;
}

.about-card h4 {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.about-card p {
    color: var(--primary-dim);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    /* أصغر قليلاً */
    gap: var(--space-4);
}

.stat-card {
    padding: var(--space-4);
    text-align: center;
    font-size: 0.9rem;
}


.stat-icon {
    color: var(--accent);
    margin-bottom: var(--space-4);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.stat-label {
    color: var(--primary-dim);
    font-size: 0.9rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--space-10) 0 var(--space-6);
    background: var(--bg-gradient-2);
    border-top: 1px solid var(--neutral-200);
    position: relative;
    overflow: hidden;
}

.footer-card {
    padding: var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--space-4);
}

.footer-description {
    color: var(--primary-dim);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--neutral-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dim);
    text-decoration: none;
    transition: all var(--transition-fast) var(--cubic-bounce);
}

.social-link:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-glow);
}

.footer-section h4 {
    color: var(--primary);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: var(--primary-dim);
    text-decoration: none;
    transition: all var(--transition-fast) var(--cubic-smooth);
    padding: var(--space-1) 0;
    display: block;
}

.footer-links a:hover {
    color: var(--accent);
    transform: translateX(5px);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--accent);
    text-decoration: none;
    transition: all var(--transition-fast) var(--cubic-smooth);
}

.contact-link:hover {
    color: var(--accent-light);
    transform: scale(1.05);
}

.footer-bottom {
    border-top: 1px solid var(--neutral-200);
    padding-top: var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    color: var(--primary-dim);
    font-size: 0.9rem;
}

.footer-love {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--primary-dim);
    font-size: 0.9rem;
}

.heart-icon {
    color: var(--error);
}

/* ========================================
   MODAL SYSTEM
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium) var(--cubic-smooth);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-4);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--card-gradient);
    max-width: 900px;
    width: 100%;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    position: relative;
    transform: translateY(50px) scale(0.9);
    opacity: 0;
    transition: all var(--transition-medium) var(--cubic-bounce);
    border: 1px solid var(--neutral-200);
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.modal.active .modal-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.modal-header {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.modal-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.modal-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.9));
    z-index: 1;
}

.modal-title-wrapper {
    position: absolute;
    bottom: var(--space-6);
    left: var(--space-6);
    z-index: 2;
}

.modal-title {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.modal-badge {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
}

.modal-description {
    color: var(--primary-dim);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.modal-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.detail-label {
    font-size: 0.9rem;
    color: var(--primary-dim);
    font-weight: var(--font-medium);
}

.detail-value {
    font-size: 1.1rem;
    font-weight: var(--font-bold);
    color: var(--primary);
}

.modal-actions {
    display: flex;
    gap: var(--space-4);
}

.close-modal {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: rgba(0, 0, 0, 0.6);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all var(--transition-fast) var(--cubic-smooth);
    z-index: 10;
    backdrop-filter: blur(var(--blur-light));
    -webkit-backdrop-filter: blur(var(--blur-light));
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* ========================================
   ANIMATIONS & EFFECTS
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s var(--cubic-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 1s var(--cubic-smooth);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 1s var(--cubic-smooth);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: all 1s var(--cubic-bounce);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1200px) {
    .container {
        max-width: min(95vw, 1000px);
    }

    .hero-title {
        font-size: clamp(2.5rem, 7vw, 5rem);
    }

    .section-title {
        font-size: clamp(2rem, 5vw, 3.5rem);
    }
}

@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-links {
        gap: var(--space-4);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .about-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
    }

    .nav-link {
        font-size: 1.2rem;
        padding: var(--space-3) var(--space-4);
        width: 100%;
        text-align: center;
        border-radius: var(--radius-xl);
    }

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

    .project-card {
        height: 350px;
    }

    .modal-content {
        margin: var(--space-4);
        max-height: calc(100vh - 2rem);
    }

    .modal-header {
        height: 200px;
    }

    .modal-title {
        font-size: 2rem;
    }

    .modal-details {
        grid-template-columns: 1fr;
    }

    .modal-actions {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .hero-features {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 12px;
    }

    .hero-content {
        padding: 0 var(--space-3);
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }

    .hero-subtitle {
        font-size: clamp(1rem, 4vw, 1.5rem);
    }

    .project-card {
        height: 300px;
    }

    .modal-content {
        margin: var(--space-2);
        max-height: calc(100vh - 1rem);
    }

    .modal-header {
        height: 150px;
    }

    .modal-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--space-3) var(--space-4);
        font-size: 0.9rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   CUSTOM SCROLLBAR
   ======================================== */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--neutral-900);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-gradient-1);
    border-radius: var(--radius-sm);
    border: 2px solid var(--neutral-900);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gradient-2);
}

::-webkit-scrollbar-corner {
    background: var(--neutral-900);
}

/* Firefox Scrollbar */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--neutral-900);
}

/* ========================================
   SELECTION STYLES
   ======================================== */
::selection {
    background: var(--accent-dim);
    color: var(--primary);
}

::-moz-selection {
    background: var(--accent-dim);
    color: var(--primary);
}

/* ========================================
   FOCUS STYLES
   ======================================== */
*:focus {
    outline: 2px solid var(--accent-dim);
    outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ========================================
   LOADING STATES
   ======================================== */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent);
    animation: copilot-shimmer 2s infinite;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--neutral-200);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: copilot-rotate 1s linear infinite;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-gradient {
    background: var(--accent-gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.line-clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.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;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.aspect-square {
    aspect-ratio: 1 / 1;
}

.aspect-video {
    aspect-ratio: 16 / 9;
}

.aspect-photo {
    aspect-ratio: 4 / 3;
}

/* ========================================
   PERFORMANCE OPTIMIZATIONS
   ======================================== */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.will-change-scroll {
    will-change: scroll-position;
}

.contain-layout {
    contain: layout;
}

.contain-paint {
    contain: paint;
}

.contain-size {
    contain: size;
}

.contain-style {
    contain: style;
}

/* Force hardware acceleration */
.hardware-accelerated {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -o-transform: translateZ(0);
}

/* Optimize repaints */
.optimize-repaint {
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --primary: #ffffff;
        --secondary: #000000;
    }
}

/* ========================================
   REDUCED MOTION SUPPORT
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .copilot-float,
    .copilot-pulse,
    .copilot-glow,
    .copilot-bounce,
    .copilot-rotate,
    .copilot-scale {
        animation: none !important;
    }
}

/* ========================================
   HIGH CONTRAST SUPPORT
   ======================================== */
@media (prefers-contrast: high) {
    :root {
        --neutral-100: rgba(255, 255, 255, 0.3);
        --neutral-200: rgba(255, 255, 255, 0.5);
        --neutral-300: rgba(255, 255, 255, 0.7);
    }

    .glass-card {
        border-width: 2px;
    }

    .btn {
        border-width: 2px;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {

    *,
    *::before,
    *::after {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    .navbar,
    .mobile-nav-toggle,
    .scroll-indicator,
    .particles-canvas,
    .hero-3d-canvas,
    .glow {
        display: none !important;
    }

    .hero-section,
    section {
        page-break-inside: avoid;
    }

    .project-card {
        border: 1px solid black;
        page-break-inside: avoid;
    }
}

/* ========================================
   END OF ULTRA-ADVANCED CSS
   ======================================== */