/* ═══════════════════════════════════════════════════════════
   SYMPOSIA - STYLES.CSS
   Colores: Cyan #00D9A3 + Morado #6B5FE8 + Azul oscuro #1A1D3A
   ═══════════════════════════════════════════════════════════ */

:root {
    --primary: #00D9A3;
    --secondary: #6B5FE8;
    --dark: #1A1D3A;
    --light: #FFFFFF;
    --gray-100: #F7F9FC;
    --gray-200: #E5E9F2;
    --gray-700: #454F5B;
    --gray-900: #212B36;
    --shadow-sm: 0 2px 8px rgba(26, 29, 58, 0.08);
    --shadow-md: 0 4px 16px rgba(26, 29, 58, 0.12);
    --shadow-lg: 0 8px 32px rgba(26, 29, 58, 0.16);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--light);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    padding: 16px 0;
}

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

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

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* BOTONES */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-primary:hover {
    background: #00C492;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-900);
    border: 2px solid var(--gray-200);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

.btn-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* HERO */
.hero {
    margin-top: 80px;
    padding: 96px 0;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--light) 100%);
    text-align: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--dark);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-700);
    max-width: 600px;
    margin: 0 auto 48px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-note {
    color: var(--gray-700);
    font-size: 14px;
}

/* SECCIONES */
.section-title {
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    color: var(--dark);
}

/* FEATURES */
.features {
    padding: 96px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--light);
    border: 2px solid var(--gray-200);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray-700);
}

/* PRICING */
.pricing {
    padding: 96px 0;
    background: var(--gray-100);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--light);
    border: 2px solid var(--gray-200);
    border-radius: 20px;
    padding: 32px;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.pricing-card.featured {
    border-color: var(--primary);
    border-width: 3px;
}

.badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--light);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.plan-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--gray-200);
}

.plan-header h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--dark);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price {
    font-size: 48px;
    font-weight: 800;
    color: var(--dark);
}

.period {
    font-size: 18px;
    color: var(--gray-700);
}

.plan-features {
    list-style: none;
    margin-bottom: 24px;
}

.plan-features li {
    padding: 8px 0;
    color: var(--gray-700);
}

/* CTA */
.cta {
    padding: 96px 0;
    background: var(--dark);
    color: var(--light);
    text-align: center;
}

.cta h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.cta p {
    font-size: 20px;
    opacity: 0.8;
    margin-bottom: 48px;
}

/* FOOTER */
.footer {
    background: var(--gray-100);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    margin-bottom: 16px;
    color: var(--dark);
}

.footer-section a {
    display: block;
    color: var(--gray-700);
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-logo {
    height: 40px;
    margin-bottom: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-700);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .nav-links {
        gap: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
    }
}