@import url('variables.css');

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-warm);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--color-text-main);
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 8vw, var(--text-4xl)); font-weight: 600; }
h2 { font-size: clamp(2rem, 5vw, var(--text-3xl)); font-weight: 500; }
h3 { font-size: var(--text-2xl); font-weight: 500; }

p { color: var(--color-text-muted); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container.narrow {
    max-width: 800px;
}

/* --- Header & Nav --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

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

.logo a {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    text-decoration: none;
    color: var(--color-text-main);
    letter-spacing: -0.02em;
    font-weight: 600;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-8);
    align-items: center;
}

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

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

/* --- Hero Section --- */
.hero {
    padding: var(--space-24) 0;
    background: var(--gradient-premium);
    position: relative;
    overflow: hidden;
}

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

.hero h1 {
    margin-bottom: var(--space-6);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: var(--text-lg);
    margin-bottom: var(--space-12);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
}

/* --- Buttons --- */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    font-size: var(--text-sm);
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    border: none;
    box-shadow: 0 4px 14px 0 rgba(139, 61, 255, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 61, 255, 0.23);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-muted);
    border-color: var(--color-text-muted);
}

.full-width { width: 100%; }

/* --- Sections --- */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    margin-bottom: var(--space-12);
}

.section-header.center {
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

/* --- Cards & Glassmorphism --- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-premium);
}

.service-card {
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.price {
    display: block;
    font-weight: 600;
    color: var(--color-primary);
    margin: var(--space-4) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

/* --- Quiz Box --- */
.quiz-box {
    padding: var(--space-12);
    border-radius: var(--radius-xl);
}

.question-text {
    font-size: var(--text-lg);
    font-weight: 500;
    margin-bottom: var(--space-6);
}

.options-grid {
    display: grid;
    gap: var(--space-4);
}

.option-card {
    display: block;
    padding: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.option-card:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}

.option-card input {
    display: none;
}

/* --- Forms --- */
.auth-form {
    display: grid;
    gap: var(--space-4);
}

.form-group {
    display: grid;
    gap: var(--space-2);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-family: inherit;
    font-size: var(--text-base);
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* --- Footer --- */
.site-footer {
    background: var(--color-text-main);
    color: white;
    padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-info .logo {
    color: white;
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
}

.footer-links h4, .footer-contact h4 {
    color: white;
    font-family: var(--font-sans);
    margin-bottom: var(--space-4);
}

.footer-links ul {
    list-style: none;
}

.footer-links a, .footer-contact p, .footer-contact a {
    color: #a0a0a0;
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color 0.3s;
}

.footer-links a:hover { color: white; }

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: var(--space-6);
    text-align: center;
    font-size: var(--text-xs);
    color: #666;
}

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

.fade-up {
    animation: fadeUp 0.8s ease-out forwards;
}

.hidden { display: none; }

/* --- Accessibility & Misc --- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--space-2) var(--space-4);
    z-index: 2000;
}

.skip-link:focus { top: 0; }

.logout-link {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; } /* En una implementación real usaría un menú hamburguesa */
}