/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Custom Properties for Theming */
:root {
    /* Light Mode Colors - White & Dark Gold */
    --color-primary: #B8860B;
    --color-secondary: #DAA520;
    --color-gold-light: #FFE4B5;
    --color-background: #ffffff;
    --color-surface: #FAFAF8;
    --color-text: #1A1A1A;
    --color-text-secondary: #4A4A4A;
    --color-border: #E6D7C3;
    --color-shadow: rgba(184, 134, 11, 0.15);
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-gold: linear-gradient(45deg, #B8860B, #DAA520, #FFD700, #DAA520, #B8860B);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Dark Mode - Black & Gold */
[data-theme="dark"] {
    --color-primary: #FFD700;
    --color-secondary: #FFA500;
    --color-gold-light: #FFED4E;
    --color-background: #000000;
    --color-surface: #1A1A1A;
    --color-text: #F5F5F5;
    --color-text-secondary: #C0C0C0;
    --color-border: #333333;
    --color-shadow: rgba(255, 215, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-gold: linear-gradient(45deg, #FFD700, #FFA500, #FFED4E, #FFA500, #FFD700);
}

/* Base Styles */
html {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    position: relative;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px var(--color-shadow);
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--color-text);
    transition: opacity var(--transition-fast);
}

.theme-toggle .sun-icon {
    opacity: 1;
}

.theme-toggle .moon-icon {
    position: absolute;
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
}

/* Header */
.header {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 100;
}

.logo {
    display: inline-block;
}

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
    opacity: 0.05;
    animation: pulse 20s ease-in-out infinite;
}

/* Gold Particles */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, var(--color-gold-light), transparent),
        radial-gradient(2px 2px at 60% 70%, var(--color-secondary), transparent),
        radial-gradient(1px 1px at 50% 50%, var(--color-primary), transparent),
        radial-gradient(2px 2px at 80% 20%, var(--color-gold-light), transparent),
        radial-gradient(1px 1px at 30% 80%, var(--color-secondary), transparent);
    background-size: 300px 300px;
    animation: sparkle 20s linear infinite;
    opacity: 0.6;
    pointer-events: none;
}

@keyframes sparkle {
    from { transform: translateY(0); }
    to { transform: translateY(-300px); }
}

[data-theme="dark"] .hero::after {
    opacity: 0.8;
    filter: brightness(1.5);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 8vw, var(--font-size-6xl));
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.gradient-text {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 8s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { 
        filter: brightness(1) contrast(1);
        background-size: 100% 100%;
    }
    50% { 
        filter: brightness(1.2) contrast(1.1);
        background-size: 120% 120%;
    }
}

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

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-3xl);
}

/* Search Preview */
.search-preview {
    max-width: 600px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px var(--color-shadow);
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    color: var(--color-text);
    outline: none;
}

.search-input::placeholder {
    color: var(--color-text-secondary);
}

.search-button {
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-lg);
    color: white;
    cursor: not-allowed;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.search-hint {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.feature-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--color-shadow);
}

.feature-card:hover::before {
    transform: translateY(0);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--color-surface);
    border-radius: 20px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

[data-theme="dark"] .feature-icon {
    background: rgba(129, 140, 248, 0.1);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Countdown Section */
.countdown-section {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.countdown-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.countdown-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-lg) var(--spacing-xl);
    min-width: 100px;
}

.countdown-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.countdown-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

.countdown-separator {
    font-size: var(--font-size-3xl);
    font-weight: 300;
    color: var(--color-text-secondary);
}

.launch-date {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* Email Section */
.email-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-surface);
}

.email-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.email-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.email-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.email-form {
    position: relative;
}

.form-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.email-input {
    flex: 1;
    min-width: 280px;
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition: all var(--transition-base);
}

.email-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(184, 134, 11, 0.2);
}

.submit-button {
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.3) 50%, transparent 70%);
    transform: rotate(45deg) translateX(-100%);
    transition: transform 0.6s;
}

.submit-button:hover::before {
    transform: rotate(45deg) translateX(100%);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(184, 134, 11, 0.3);
}

.submit-button:active {
    transform: translateY(0);
}

.button-icon {
    transition: transform var(--transition-base);
}

.submit-button:hover .button-icon {
    transform: translateX(4px);
}

.form-message {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.form-message.show {
    opacity: 1;
}

.form-message.success {
    color: #10b981;
}

.form-message.error {
    color: #ef4444;
}

/* Footer */
.footer {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .countdown {
        gap: var(--spacing-sm);
    }
    
    .countdown-item {
        padding: var(--spacing-md) var(--spacing-lg);
        min-width: 80px;
    }
    
    .countdown-value {
        font-size: var(--font-size-3xl);
    }
    
    .countdown-separator {
        display: none;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .email-input {
        min-width: 100%;
    }
    
    .submit-button {
        width: 100%;
        justify-content: center;
    }
}

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

.hero-content > * {
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

.hero-title {
    animation-delay: 0.1s;
}

.hero-subtitle {
    animation-delay: 0.2s;
}

.search-preview {
    animation-delay: 0.3s;
}

/* Glassmorphism effect for dark mode */
[data-theme="dark"] .search-box,
[data-theme="dark"] .feature-card,
[data-theme="dark"] .countdown-item {
    background: rgba(26, 26, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.2);
}

[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .social-link {
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    border-color: rgba(255, 215, 0, 0.3);
}

/* Gold neon glow effect for dark mode */
[data-theme="dark"] .submit-button {
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5), inset 0 0 20px rgba(255, 215, 0, 0.1);
}

[data-theme="dark"] .submit-button:hover {
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.7), inset 0 0 30px rgba(255, 215, 0, 0.2);
}

/* Gold text glow in dark mode */
[data-theme="dark"] .gradient-text {
    text-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

[data-theme="dark"] .feature-icon {
    background: rgba(255, 215, 0, 0.1);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero::before {
        animation: none;
    }
    
    .gradient-text {
        animation: none;
    }
}

/* Additional styles for countdown value transitions */
.countdown-value {
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* TLD Showcase Section */
.tld-showcase {
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-background) 0%, var(--color-surface) 50%, var(--color-background) 100%);
}

.tld-showcase-title {
    text-align: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2xl);
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gold-shimmer 3s linear infinite;
}

.tld-wrapper {
    position: relative;
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.tld-track {
    display: flex;
    gap: var(--spacing-2xl);
    animation: scroll-left 30s linear infinite;
    white-space: nowrap;
}

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

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.tld-item {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    position: relative;
    display: inline-block;
}

.tld-item:hover {
    color: var(--color-primary);
    transform: scale(1.1) translateY(-4px);
}

.tld-item .domain-name {
    color: var(--color-text);
    font-weight: 700;
}

.tld-item .tld {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

[data-theme="dark"] .tld-item:hover {
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
    background: rgba(255, 215, 0, 0.1);
}

/* Mobile adjustments for TLD showcase */
@media (max-width: 768px) {
    .tld-showcase {
        padding: var(--spacing-2xl) 0;
    }
    
    .tld-wrapper {
        height: 80px;
    }
    
    .tld-item {
        font-size: var(--font-size-base);
    }
    
    @keyframes scroll-left {
        0% { transform: translateX(0); }
        100% { transform: translateX(-50%); }
    }
}