/* Reset and Base Styles */
:root {
    --bg: #f9fafb;
    --text: #1f2937;
    --card-bg: #ffffff;
    --card-border: #e5e7eb;
    --muted: #6b7280;
    --accent: #ffbe00;
    --success: #10b981;
    --info: #3b82f6;
}

[data-theme="dark"] {
    --bg: #0b0b0b;
    --text: #e5e7eb;
    --card-bg: #111827;
    --card-border: #1f2937;
    --muted: #9ca3af;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Arial", sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: #000;
    margin: -2rem -1rem 2rem -1rem;
    position: relative;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin: 0;
}

.logo-mind {
    color: #fff;
}

.logo-ai {
    color: var(--accent);
}

.tagline {
    color: var(--muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 0.5rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.intro-card {
    border-left: 4px solid #ffbe00;
}

.intro-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.intro-card p {
    color: var(--muted);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.intro-card p:last-of-type {
    margin-bottom: 1.5rem;
}

/* Buttons */
.links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: #000;
}

.btn-primary:hover {
    background: #e5ab00;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #000;
    color: #fff;
    border: 1px solid #000;
}

.btn-secondary:hover {
    background: #1f2937;
    transform: translateY(-2px);
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}

.stat-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #ffbe00;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* Apps Section */
.apps-section {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}

.app-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.25rem;
    transition: all 0.3s;
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #ffbe00;
}

.app-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.app-card p {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.app-link {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.app-link:hover {
    color: #e5ab00;
}

.app-link-code {
    color: var(--success);
}

.app-link-code:hover {
    color: #059669;
}

.app-link-maintenance {
    color: var(--info);
}

.app-link-maintenance:hover {
    color: #2563eb;
}

/* Newsletter Section */
.newsletter-section {
    margin-bottom: 3rem;
}

.newsletter-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem 0;
}

.newsletter-list li {
    padding: 0.5rem 0;
    color: var(--muted);
    font-size: 0.9375rem;
}

.newsletter-embed {
    margin-top: 1.5rem;
}

/* About Section */
.about-section {
    margin-bottom: 3rem;
}

.achievements-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.achievements-list li {
    padding: 0.375rem 0;
    color: var(--muted);
    font-size: 0.9375rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0 1rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--card-border);
}

.footer p {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #ffbe00;
}

.theme-toggle-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 9999px;
    background: #111;
    border: 1px solid #333;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    opacity: 0.85;
    transition: opacity 0.2s, transform 0.2s;
}

.theme-toggle-btn:hover {
    opacity: 1;
    transform: translateY(-1px);
}

.theme-toggle {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 56px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
    border-radius: 9999px;
    background: #111;
    border: 1px solid #333;
    color: #fff;
    cursor: pointer;
    opacity: 0.9;
}

.theme-icon {
    font-size: 14px;
    line-height: 1;
    user-select: none;
}

.theme-toggle-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 24px;
    height: 24px;
    border-radius: 9999px;
    background: var(--accent);
    box-shadow: 0 1px 3px rgba(0,0,0,0.5);
    transition: left 0.2s ease;
}

body[data-theme="dark"] .theme-toggle-knob {
    left: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header {
        margin: -1rem -1rem 1.5rem -1rem;
        padding: 1.5rem 0;
    }

    .logo {
        font-size: 1.5rem;
    }

    .intro-card h2 {
        font-size: 1.25rem;
    }

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

    .stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .links {
        flex-direction: column;
    }

    .btn {
        text-align: center;
    }

    .newsletter-embed iframe {
        height: 400px;
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 1.5rem;
    }
}