/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Core Colors - Dark Mode Default */
    --primary-hue: 265;
    --primary: hsl(var(--primary-hue), 80%, 65%);
    /* Bright Purple */
    --primary-dark: hsl(var(--primary-hue), 70%, 50%);
    /* Deep Purple */
    --primary-glow: hsla(var(--primary-hue), 80%, 65%, 0.4);

    --bg-dark: #0a0a0b;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border-color: rgba(255, 255, 255, 0.1);

    --text-main: #ffffff;
    --text-muted: #a1a1aa;

    --gradient-bg: radial-gradient(circle at 50% 0%, #2e1065 0%, #0a0a0b 60%);

    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;
}

[data-theme="light"] {
    --bg-dark: #f8fafc;
    --bg-card: rgba(0, 0, 0, 0.03);
    --bg-card-hover: rgba(0, 0, 0, 0.06);
    --border-color: rgba(0, 0, 0, 0.1);

    --text-main: #0f172a;
    --text-muted: #64748b;

    --primary: hsl(var(--primary-hue), 70%, 55%);
    --gradient-bg: radial-gradient(circle at 50% 0%, #ddd6fe 0%, #f8fafc 60%);
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', sans-serif;
    line-height: 1.2;
    color: var(--text-main);
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 40px -10px var(--primary-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    border-radius: 100px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    font-family: 'Outfit', sans-serif;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    background: var(--bg-card-hover);
    color: var(--primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-main) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 10, 11, 0.7);
    /* Fallback */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] header {
    background: rgba(248, 250, 252, 0.7);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--primary);
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    text-align: center;
    color: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Todo: Add mobile menu if needed */
    }

    h1 {
        font-size: 2.5rem !important;
    }

    .container {
        padding: 0 1.5rem;
    }
}

/* Gallery Styles */
.gallery-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 2rem 0;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.gallery-track {
    display: flex;
    gap: 2rem;
    width: max-content;
    animation: scroll 40s linear infinite;
    cursor: pointer;
}

.gallery-track:hover {
    animation-play-state: paused;
}

.gallery-item {
    height: 300px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

.gallery-item:hover {
    transform: scale(1.02);
    border-color: var(--primary);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-50% - 1rem));
    }
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 0 50px rgba(124, 58, 237, 0.2);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
    z-index: 1001;
}

.lightbox-close:hover {
    opacity: 1;
    color: var(--primary);
}

@media (max-width: 768px) {
    .gallery-item {
        height: 200px;
    }
}