/* ===================================
   Hamdi Bougattaya Portfolio
   Glassmorphism Design System
   =================================== */

/* CSS Variables */
:root {
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-bg-solid: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.25);
    --glass-border-light: rgba(255, 255, 255, 0.4);
    --blur: 20px;
    --text-light: #FFFFFF;
    --text-dark: #1D1D1F;
    --text-muted: rgba(255, 255, 255, 0.8);
    --accent: #8B5CF6;
    --accent-secondary: #EC4899;
    --success: #22C55E;

    /* Animation */
    --transition-fast: 150ms ease-out;
    --transition-medium: 250ms ease-out;
    --transition-slow: 400ms ease-out;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 40%, #f093fb 100%);
    background-attachment: fixed;
}

/* Animated Background */
.bg-animated {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 40%, #f093fb 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: -2;
}

.bg-noise {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    z-index: -1;
    pointer-events: none;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===================================
   Glassmorphism Components
   =================================== */

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: var(--glass-border-light);
}

.glass-card-solid {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
}

.glass-card-highlight {
    border-color: var(--accent);
    background: rgba(139, 92, 246, 0.15);
}

/* Glass Portrait */
.glass-portrait {
    width: 300px;
    height: 380px;
    border-radius: 24px;
    border: 2px solid var(--glass-border-light);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2), inset 0 0 30px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.glass-portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.glass-portrait::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(102, 126, 234, 0.2) 100%);
    pointer-events: none;
}

@media (min-width: 768px) {
    .glass-portrait {
        width: 350px;
        height: 450px;
    }
}

/* Glass Avatar */
.glass-avatar {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    border: 2px solid var(--glass-border-light);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2), inset 0 0 20px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

@media (min-width: 768px) {
    .glass-avatar {
        width: 320px;
        height: 320px;
    }
}

/* Glass Buttons */
.glass-button-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: white;
    font-weight: 600;
    border-radius: 16px;
    border: none;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
}

.glass-button-primary:active {
    transform: scale(0.97);
}

.glass-button-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    color: var(--text-light);
    font-weight: 600;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.glass-button-secondary:hover {
    transform: translateY(-2px);
    background: var(--glass-bg-solid);
    border-color: var(--glass-border-light);
}

.glass-button-secondary:active {
    transform: scale(0.97);
}

.glass-button-sm {
    padding: 8px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.glass-button-sm:hover {
    background: var(--glass-bg-solid);
}

/* Glass Badge */
.glass-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
}

.glass-badge-sm {
    padding: 6px 12px;
    background: var(--glass-bg-solid);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
}

.glass-badge-accent {
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
}

/* Glass Pill */
.glass-pill {
    display: inline-block;
    padding: 8px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-light);
    font-size: 14px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-fast);
}

.glass-pill:hover {
    background: var(--glass-bg-solid);
    transform: translateY(-2px);
}

/* ===================================
   Navigation
   =================================== */

.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-light);
    background: var(--glass-bg);
}

.nav-link.active {
    color: var(--text-light);
    background: var(--glass-bg);
}

.mobile-nav-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-light);
    padding: 12px 24px;
    border-radius: 16px;
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--glass-bg);
}

/* ===================================
   Section Title
   =================================== */

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    border-radius: 2px;
    margin: 16px auto 0;
}

/* ===================================
   Timeline
   =================================== */

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-secondary) 50%, rgba(255, 255, 255, 0.3) 100%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-node {
    position: absolute;
    left: -33px;
    top: 24px;
    width: 20px;
    height: 20px;
    background: var(--glass-bg-solid);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 3px solid var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
    z-index: 1;
    transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-node {
    background: var(--accent);
    transform: scale(1.2);
}

.timeline-content {
    padding-left: 16px;
}

/* ===================================
   Project Cards
   =================================== */

.project-card {
    padding: 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(139, 92, 246, 0.2);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 500;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    background: var(--accent);
}

/* ===================================
   Bento Grid
   =================================== */

.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

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

    .bento-large {
        grid-column: span 2;
        grid-row: span 2;
    }

    .bento-medium {
        grid-column: span 1;
        grid-row: span 2;
    }
}

@media (max-width: 767px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .bento-large,
    .bento-medium {
        grid-column: span 1;
        grid-row: span 1;
    }
}

/* ===================================
   Skills
   =================================== */

.skill-tag {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 13px;
    font-weight: 500;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-fast);
    cursor: default;
}

.skill-tag:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.skill-tag-ai {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(236, 72, 153, 0.3) 100%);
    color: var(--text-light);
    font-size: 13px;
    font-weight: 600;
    border-radius: 12px;
    border: 1px solid var(--accent);
    transition: all var(--transition-fast);
    cursor: default;
}

.skill-tag-ai:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

/* ===================================
   Floating Orbs (Background)
   =================================== */

.floating-orb {
    position: absolute;
    border-radius: 50%;
    opacity: 0.4;
    filter: blur(60px);
    animation: floatOrb 25s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #8B5CF6 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #EC4899 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -8s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #667eea 0%, transparent 70%);
    top: 40%;
    left: 20%;
    animation-delay: -16s;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -50px) scale(1.05); }
    50% { transform: translate(-30px, 30px) scale(0.95); }
    75% { transform: translate(20px, -20px) scale(1.02); }
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDelay {
    0%, 30% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.15);
        opacity: 0.8;
    }
}

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

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-delay {
    animation: fadeInDelay 1.2s ease-out forwards;
}

.animate-slide-down {
    animation: slideDown 0.6s ease-out forwards;
}

.animate-bounce-slow {
    animation: bounceSlow 2s ease-in-out infinite;
}

/* Scroll Reveal */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    transition-delay: var(--delay, 0s);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Reduced Motion
   =================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-reveal {
        opacity: 1;
        transform: none;
    }

    .floating-orb {
        animation: none;
    }

    .bg-animated {
        animation: none;
    }
}

/* ===================================
   Responsive Adjustments
   =================================== */

@media (max-width: 767px) {
    .section-title {
        font-size: 2rem;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-node {
        left: -28px;
        width: 16px;
        height: 16px;
    }

    .glass-button-primary,
    .glass-button-secondary {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* Focus States for Accessibility */
a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* Text colors for glass cards */
.text-glass-primary {
    color: var(--text-light);
}

.text-glass-secondary {
    color: var(--text-muted);
}

/* Print Styles */
@media print {
    .floating-orb,
    .bg-animated,
    .bg-noise,
    nav,
    .animate-bounce-slow {
        display: none;
    }

    body {
        background: white;
    }

    .glass-card {
        background: #f5f5f5;
        border: 1px solid #ddd;
        backdrop-filter: none;
    }

    .text-glass-primary {
        color: #1a1a1a;
    }

    .text-glass-secondary {
        color: #666;
    }
}