:root {
    --bg-primary-rgb: 10, 10, 10;
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --text-primary: #fafafa;
    --text-secondary: #a1a1a1;
    --text-muted: #6b6b6b;
    --accent: #e5e5e5;
    --accent-dark: #262626;
    --border: #262626;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
}

[data-theme="light"] {
    --bg-primary-rgb: 250, 250, 250;
    --bg-primary: #fafafa;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #ebebeb;
    --text-primary: #1a1a1a;
    --text-secondary: #525252;
    --text-muted: #a1a1a1;
    --accent: #1a1a1a;
    --accent-dark: #e5e5e5;
    --border: #e5e5e5;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 0;
    background: rgba(var(--bg-primary-rgb, 10, 10, 10), 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all 0.4s ease;
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(var(--bg-primary-rgb, 10, 10, 10), 0.95);
    border-bottom-color: var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-theme-toggle:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.nav-theme-toggle:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

.nav-theme-toggle svg {
    width: 1rem;
    height: 1rem;
}

.nav-theme-toggle .sun-icon {
    display: none;
}

[data-theme="light"] .nav-theme-toggle .sun-icon {
    display: block;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: color 0.3s ease;
}

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

.nav-user-menu {
    position: relative;
}

.nav-avatar-button {
    width: 1.75rem;
    height: 1.75rem;
    min-width: 1.75rem;
    min-height: 1.75rem;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.nav-avatar-button:hover {
    border-color: var(--text-muted);
    transform: translateY(-1px);
}

.nav-avatar-button:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

.nav-avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nav-avatar-fallback {
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1;
}

.nav-user-dropdown {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    min-width: 11rem;
    padding: 0.4rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-secondary);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-user-menu.open .nav-user-dropdown {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-user-form {
    margin: 0;
}

.nav-user-item {
    width: 100%;
    display: block;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    text-align: left;
    font-size: 0.875rem;
    font-family: inherit;
    line-height: 1.2;
    padding: 0.65rem 0.75rem;
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-user-item:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1452587925148-ce544e77e70d?w=1920&h=1080&fit=crop') center/cover no-repeat;
    transform: scale(1.1);
    animation: heroZoom 20s ease-out forwards;
}

@keyframes heroZoom {
    to { transform: scale(1); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(var(--bg-primary-rgb, 10, 10, 10), 0.4) 0%,
        rgba(var(--bg-primary-rgb, 10, 10, 10), 0.7) 50%,
        rgba(var(--bg-primary-rgb, 10, 10, 10), 1) 100%
    );
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 2rem;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.title-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px);
    animation: wordReveal 0.8s ease forwards;
    animation-delay: calc(0.5s + var(--delay));
}

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 1s;
}

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

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 1.2s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.15);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* Hero Scroll */
.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fadeIn 1s ease forwards 1.5s;
}

@keyframes fadeIn {
    to { opacity: 0.6; }
}

.hero-scroll span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* Features */
.features {
    padding: 8rem 0;
    background: var(--bg-secondary);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 400;
    text-align: center;
    margin-bottom: 4rem;
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--text-muted);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Showcase */
.showcase {
    padding: 8rem 0;
    background: var(--bg-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: 1rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(var(--bg-primary-rgb, 10, 10, 10), 0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.gallery-item-1 {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item-2 { grid-column: span 1; }
.gallery-item-3 { grid-column: span 1; }
.gallery-item-4 { grid-column: span 1; }
.gallery-item-5 { grid-column: span 2; }
.gallery-item-5 {
    grid-column: span 2;
    grid-row: span 1;
}

/* CTA */
.cta {
    padding: 8rem 0;
    background: var(--bg-secondary);
    text-align: center;
}

.cta h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.cta p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
}

/* Footer */
.footer {
    padding: 3rem 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive */
.auth-page {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
}

.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--text-muted);
}

.btn-primary-full {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
}

.social-login {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.social-login p {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.social-login a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.875rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-login a:hover {
    background: var(--bg-primary);
    border-color: var(--text-muted);
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-footer a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.errorlist {
    list-style: none;
    padding: 0;
    margin: 0;
    color: #ef4444;
    font-size: 0.875rem;
}

.helptext {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-right {
        gap: 0.75rem;
    }

    .nav-avatar-button {
        width: 1.5rem;
        height: 1.5rem;
        min-width: 1.5rem;
        min-height: 1.5rem;
    }

    .nav-avatar-fallback {
        font-size: 0.5625rem;
    }

    .nav-user-menu {
        display: flex;
        align-items: center;
    }

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

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(4, 200px);
    }

    .gallery-item-1 {
        grid-column: span 2;
        grid-row: span 1;
    }

    .gallery-item-5 {
        grid-column: span 2;
    }

    .hero-cta {
        flex-direction: column;
    }
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    pointer-events: none;
}

.toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-width: 280px;
    max-width: 420px;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    line-height: 1.4;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    transform: translateX(calc(100% + 2rem));
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.21, 1.02, 0.73, 1),
                opacity 0.35s ease;
}

.toast.toast-visible {
    transform: translateX(0);
    opacity: 1;
}

.toast.toast-hiding {
    transform: translateX(calc(100% + 2rem));
    opacity: 0;
}

.toast-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid #10b981;
    color: #34d399;
}

.toast-error, .toast-danger {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid #ef4444;
    color: #f87171;
}

.toast-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid #f59e0b;
    color: #fbbf24;
}

.toast-info, .toast-debug {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid #3b82f6;
    color: #60a5fa;
}

[data-theme="light"] .toast-success {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

[data-theme="light"] .toast-error,
[data-theme="light"] .toast-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

[data-theme="light"] .toast-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

[data-theme="light"] .toast-info,
[data-theme="light"] .toast-debug {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.toast-message {
    flex: 1;
}

.toast-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.6;
    padding: 0;
    line-height: 1;
    transition: opacity 0.2s;
}

.toast-close:hover {
    opacity: 1;
}

@media (max-width: 480px) {
    .toast-container {
        top: auto;
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
    }

    .toast {
        min-width: 0;
        max-width: none;
    }
}