/* MyVoice-TTS Website Styles */
/* Color Scheme: Blue/Green with Dark Blue Background */

:root {
    --primary-blue: #2563eb;
    --primary-green: #10b981;
    --dark-blue: #0f172a;
    --darker-blue: #020617;
    --light-blue: #3b82f6;
    --accent-green: #34d399;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --card-bg: #1e293b;
    --card-border: #334155;
    --gradient-start: #2563eb;
    --gradient-end: #10b981;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
    background-color: var(--dark-blue);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid var(--card-border);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-green);
}

.nav-cta {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta:hover {
    opacity: 0.9;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(180deg, var(--darker-blue) 0%, var(--dark-blue) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

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

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-content h1 .gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: var(--card-border);
}

.btn-donate {
    background: #ff5e5b;
    color: white;
}

.btn-donate:hover {
    background: #e54542;
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 94, 91, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: 16px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--card-border);
}

/* Sections */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-header .update-date {
    color: var(--accent-green);
    font-size: 0.95rem;
    font-weight: 500;
    margin-top: 12px;
}

/* Features Section */
.features {
    background: var(--darker-blue);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Use Cases Section */
.use-cases {
    background: var(--dark-blue);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.use-case-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    gap: 24px;
    transition: all 0.3s ease;
}

.use-case-card:hover {
    border-color: var(--primary-green);
}

.use-case-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.use-case-content h3 {
    font-size: 1.375rem;
    margin-bottom: 8px;
}

.use-case-content .tagline {
    color: var(--accent-green);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.use-case-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Download Section */
.download {
    background: linear-gradient(180deg, var(--darker-blue) 0%, var(--dark-blue) 100%);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.download-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}

.download-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-4px);
}

.download-card.recommended {
    border-color: var(--primary-green);
    position: relative;
}

.download-card.recommended::before {
    content: 'Recommended';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.download-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.download-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.download-card .btn {
    width: 100%;
    justify-content: center;
}

/* Requirements */
.requirements {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 32px;
    margin-top: 48px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.requirements h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    text-align: center;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.requirement-item {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.requirement-item strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 4px;
}

/* VB-Cable Notice */
.vb-cable-notice {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(16, 185, 129, 0.1));
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 24px 32px;
    margin-top: 32px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.vb-cable-notice p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.vb-cable-notice a {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 600;
}

.vb-cable-notice a:hover {
    text-decoration: underline;
}

/* Credits Section */
.credits {
    background: var(--dark-blue);
}

.credits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.credit-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.credit-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.credit-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* VB-Cable Special Thanks */
.vb-cable-thanks {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(16, 185, 129, 0.15));
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.vb-cable-thanks h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.vb-cable-thanks p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.vb-cable-thanks .btn {
    background: #e91e63;
}

.vb-cable-thanks .btn:hover {
    background: #c2185b;
}

/* Donate Section */
.donate {
    background: linear-gradient(180deg, var(--darker-blue) 0%, var(--dark-blue) 100%);
}

.donate-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.donate-content h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.donate-content > p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 40px;
}

.donate-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.donate-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.donate-btn.kofi {
    background: #ff5e5b;
    color: white;
}

.donate-btn.kofi:hover {
    background: #e54542;
    transform: translateY(-2px);
}

.donate-btn.github {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.donate-btn.github:hover {
    background: var(--card-border);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--darker-blue);
    padding: 48px 0 24px;
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-logo img {
    height: 32px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-green);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .requirements-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .credits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .mobile-menu-btn {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

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

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

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

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

    .footer-content {
        flex-direction: column;
        gap: 24px;
    }

    .donate-buttons {
        flex-direction: column;
        align-items: center;
    }
}