/* ==========================================================================
   INF Translate - Public Styles
   Glassmorphism + Bento Grid Design
   ========================================================================== */

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    /* Primary Colors */
    --color-cyan: #06b6d4;
    --color-cyan-light: #22d3ee;
    --color-cyan-dark: #0891b2;

    --color-purple: #8b5cf6;
    --color-purple-light: #a78bfa;
    --color-purple-dark: #7c3aed;

    --color-green: #10b981;
    --color-green-light: #34d399;
    --color-green-dark: #059669;

    /* Background Colors */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Light Mode Variables */
html:not(.dark) {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;

    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==========================================================================
   Floating Gradient Orbs
   ========================================================================== */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-cyan {
    width: 400px;
    height: 400px;
    background: var(--color-cyan);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb-purple {
    width: 350px;
    height: 350px;
    background: var(--color-purple);
    bottom: 20%;
    left: -100px;
    animation-delay: -5s;
}

.orb-green {
    width: 300px;
    height: 300px;
    background: var(--color-green);
    bottom: -50px;
    right: 20%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(20px, 10px) scale(1.05);
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .orb {
        animation: none;
    }
}

/* ==========================================================================
   Glass Effect Components
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

.header-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

.footer-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--glass-border);
}

/* ==========================================================================
   Logo
   ========================================================================== */
.logo-text {
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-highlight {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link-active {
    color: var(--color-cyan);
}

.nav-link-active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-purple));
    border-radius: 1px;
}

/* Mobile Navigation */
.mobile-menu-btn {
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--glass-bg);
}

.mobile-nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: white;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    border-radius: 8px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-cyan-light), var(--color-purple-light));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-glow:hover::before {
    opacity: 1;
}

.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px -10px var(--color-cyan);
}

.btn-glow span {
    position: relative;
    z-index: 1;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--glass-border);
    border-color: var(--color-cyan);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 4rem 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 5rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 6rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.5rem;
    }
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

/* ==========================================================================
   Theme Toggle
   ========================================================================== */
.theme-toggle {
    padding: 0.5rem;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

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

/* ==========================================================================
   Footer
   ========================================================================== */
.footer-heading {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-link {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-cyan);
}

/* ==========================================================================
   Marquee Banner (Between navbar and hero - full width)
   ========================================================================== */
.marquee-banner {
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(139, 92, 246, 0.12));
    border-bottom: 1px solid var(--glass-border);
    padding: 1.25rem 0;
}

@media (min-width: 768px) {
    .marquee-banner {
        padding: 1.5rem 0;
    }
}

.marquee-content {
    display: flex;
    animation: marquee 40s linear infinite;
    white-space: nowrap;
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    padding: 0 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (min-width: 768px) {
    .marquee-item {
        font-size: 2rem;
        padding: 0 3rem;
    }
}

.marquee-item::after {
    content: '•';
    margin-left: 1.5rem;
    background: none;
    -webkit-text-fill-color: var(--color-cyan);
}

@media (min-width: 768px) {
    .marquee-item::after {
        margin-left: 2rem;
    }
}

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

/* ==========================================================================
   Bento Grid
   ========================================================================== */
.bento-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.bento-item {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.bento-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-cyan);
    box-shadow: 0 20px 40px -20px rgba(6, 182, 212, 0.3);
}

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

.bento-item-tall {
    grid-row: span 2;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */
.section {
    padding: 4rem 0;
}

@media (min-width: 768px) {
    .section {
        padding: 6rem 0;
    }
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 3rem;
    }
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Form Styles
   ========================================================================== */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--glass-border);
    border-radius: 4px;
    background: var(--glass-bg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-checkbox:checked {
    background: var(--color-cyan);
    border-color: var(--color-cyan);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.text-gradient {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple), var(--color-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow-cyan {
    box-shadow: 0 0 40px -10px var(--color-cyan);
}

.glow-purple {
    box-shadow: 0 0 40px -10px var(--color-purple);
}

.glow-green {
    box-shadow: 0 0 40px -10px var(--color-green);
}

/* ==========================================================================
   Price Cards
   ========================================================================== */
.price-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition-normal);
}

.price-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-cyan);
}

.price-card-featured {
    border-color: var(--color-purple);
    position: relative;
}

.price-card-featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.official-use-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.official-use-badge span {
    background: var(--color-green);
    color: var(--bg-primary);
    font-size: 0.75rem;
    font-weight: bold;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.price-period {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Floating Translate Button
   ========================================================================== */
.floating-translate-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    color: white;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.4);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.floating-translate-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 40px rgba(6, 182, 212, 0.5);
}

.floating-translate-btn:active {
    transform: translateY(-2px) scale(1.02);
}

/* Hide on desktop (shown in header) */
@media (min-width: 768px) {
    .floating-translate-btn {
        display: none;
    }
}