:root {
    --bg: #f5f0e8;
    --surface: #fff9f0;
    --surface-hover: #f0ebe0;
    --primary: #d4a373;
    --primary-hover: #c49360;
    --text: #1a120b;
    --text-light: #5c4d3c;
    --border: #e0d5c5;
    --shadow: 0 4px 20px rgba(26, 18, 11, 0.08);
    --radius: 16px;
    --font: 'Nunito', system-ui, sans-serif;
}

[data-theme="dark"] {
    --bg: #1a1510;
    --surface: #252019;
    --surface-hover: #2f2820;
    --primary: #e8b87d;
    --primary-hover: #f0c28f;
    --text: #f5efe6;
    --text-light: #b8a99a;
    --border: #3a3228;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

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

.theme-toggle {
    background: none;
    border: 2px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text);
    transition: all 0.2s;
}

.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

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

/* Main */
main {
    flex: 1;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Hero */
.hero {
    padding: 6rem 1.5rem;
    text-align: center;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.accent {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: #1a120b;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Sections */
.section {
    padding: 4rem 1.5rem;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-align: center;
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.link-arrow {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.2s;
}

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

/* About */
.about-content {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1rem;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 700;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(212, 163, 115, 0.15);
}

/* Alerts */
.alert {
    padding: 0.875rem 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.25);
}

[data-theme="dark"] .alert-success {
    color: #4ade80;
}

[data-theme="dark"] .alert-error {
    color: #f87171;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background: var(--surface-hover);
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 640px) {
    .main-nav {
        padding: 1rem;
    }
    .nav-links {
        gap: 1rem;
    }
    .nav-link {
        font-size: 0.9rem;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .page-title {
        font-size: 1.75rem;
    }
}