/* ==========================================================================
   SolidCourse | Observatorio de Formación y Salud Acústica
   Theme: Deep Slate / Emerald Accent / Clean Editorial
   ========================================================================== */

:root {
    --sc-primary: #0f2d37;
    --sc-primary-light: #164352;
    --sc-primary-dark: #0a1e25;
    --sc-accent: #059669;
    --sc-accent-light: #10b981;
    --sc-accent-soft: rgba(16, 185, 129, 0.12);
    --sc-amber: #d97706;
    --sc-text-main: #1e293b;
    --sc-text-muted: #64748b;
    --sc-text-light: #94a3b8;
    --sc-bg: #f8fafc;
    --sc-card-bg: #ffffff;
    --sc-border: #e2e8f0;
    --sc-border-light: #f1f5f9;
    --sc-radius-sm: 8px;
    --sc-radius-md: 14px;
    --sc-radius-lg: 20px;
    --sc-shadow: 0 4px 20px rgba(15, 45, 55, 0.06);
    --sc-shadow-hover: 0 12px 30px rgba(15, 45, 55, 0.12);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--sc-bg);
    color: var(--sc-text-main);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--sc-primary);
    font-weight: 700;
    line-height: 1.25;
}

a {
    color: var(--sc-accent);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--sc-primary);
}

.sc-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.sc-header {
    background: #ffffff;
    border-bottom: 1px solid var(--sc-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.sc-nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.sc-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 22px;
    font-weight: 800;
    color: var(--sc-primary);
}

.sc-brand span {
    color: var(--sc-accent);
}

.sc-brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--sc-accent-soft);
    color: var(--sc-accent);
    border-radius: 10px;
}

.sc-brand-light {
    color: #ffffff;
}

.sc-brand-light span {
    color: #34d399;
}

.sc-brand-light .sc-brand-icon {
    background: rgba(52, 211, 153, 0.15);
    color: #34d399;
}

.sc-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.sc-nav a {
    font-size: 15px;
    font-weight: 600;
    color: var(--sc-text-main);
    padding: 8px 0;
    position: relative;
}

.sc-nav a:hover, .sc-nav a.active {
    color: var(--sc-accent);
}

.sc-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--sc-accent);
    border-radius: 2px;
}

.sc-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.sc-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--sc-primary);
    border-radius: 2px;
}

/* Badges & Chips */
.sc-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--sc-accent-soft);
    color: var(--sc-accent);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 30px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
}

.sc-badge-amber {
    background: rgba(217, 119, 6, 0.12);
    color: var(--sc-amber);
}

/* Hero Section */
.sc-hero {
    padding: 70px 0 60px;
    background: linear-gradient(180deg, #ffffff 0%, var(--sc-bg) 100%);
    border-bottom: 1px solid var(--sc-border);
}

.sc-hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 50px;
    align-items: center;
}

.sc-hero-content h1 {
    font-size: 42px;
    margin-bottom: 20px;
    color: var(--sc-primary);
    letter-spacing: -0.5px;
}

.sc-hero-content h1 span {
    color: var(--sc-accent);
}

.sc-hero-content p {
    font-size: 18px;
    color: var(--sc-text-muted);
    margin-bottom: 28px;
    line-height: 1.7;
}

.sc-hero-stats {
    display: flex;
    gap: 25px;
    margin-top: 35px;
    padding-top: 30px;
    border-top: 1px solid var(--sc-border);
}

.sc-stat-item strong {
    display: block;
    font-size: 26px;
    color: var(--sc-primary);
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.sc-stat-item span {
    font-size: 13px;
    color: var(--sc-text-muted);
}

/* Interactive Calculator Widget */
.sc-calc-widget {
    background: #ffffff;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-lg);
    padding: 32px;
    box-shadow: var(--sc-shadow);
}

.sc-calc-widget h3 {
    font-size: 20px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sc-calc-widget p.calc-sub {
    font-size: 14px;
    color: var(--sc-text-muted);
    margin-bottom: 24px;
}

.sc-calc-field {
    margin-bottom: 22px;
}

.sc-calc-label {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--sc-text-main);
}

.sc-calc-slider {
    width: 100%;
    height: 6px;
    border-radius: 4px;
    background: #e2e8f0;
    outline: none;
    accent-color: var(--sc-accent);
}

.sc-calc-output {
    background: var(--sc-bg);
    border-radius: var(--sc-radius-md);
    padding: 20px;
    margin-top: 24px;
    text-align: center;
    border: 1px solid var(--sc-border);
}

.sc-output-val {
    font-size: 32px;
    font-weight: 800;
    color: var(--sc-accent);
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin-bottom: 4px;
}

.sc-output-status {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.sc-output-desc {
    font-size: 13.5px;
    color: var(--sc-text-muted);
    line-height: 1.5;
}

/* Bento Grid & Cards */
.sc-section {
    padding: 70px 0;
}

.sc-section-title {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 50px;
}

.sc-section-title h2 {
    font-size: 32px;
    margin-bottom: 14px;
}

.sc-section-title p {
    font-size: 16px;
    color: var(--sc-text-muted);
}

.sc-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.sc-card {
    background: #ffffff;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    padding: 32px;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}

.sc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sc-shadow-hover);
    border-color: var(--sc-accent-light);
}

.sc-card-tag {
    font-size: 12px;
    font-weight: 700;
    color: var(--sc-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.sc-card h3 {
    font-size: 21px;
    margin-bottom: 12px;
}

.sc-card p {
    font-size: 15px;
    color: var(--sc-text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
}

.sc-card-link {
    font-size: 14.5px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Decibel Chart Table */
.sc-table-wrap {
    background: #ffffff;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    overflow: hidden;
    box-shadow: var(--sc-shadow);
    margin-top: 30px;
}

.sc-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 15px;
}

.sc-table th {
    background: var(--sc-primary);
    color: #ffffff;
    padding: 16px 20px;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.sc-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--sc-border);
}

.sc-table tr:last-child td {
    border-bottom: none;
}

.sc-table tr:hover td {
    background: var(--sc-bg);
}

.sc-tag-safe {
    color: #059669;
    font-weight: 700;
}

.sc-tag-warn {
    color: #d97706;
    font-weight: 700;
}

.sc-tag-danger {
    color: #dc2626;
    font-weight: 700;
}

/* Article Layout */
.sc-article-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 48px;
    padding: 60px 0 80px;
}

.sc-article-body {
    background: #ffffff;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    padding: 44px;
    box-shadow: var(--sc-shadow);
}

.sc-article-meta {
    font-size: 13.5px;
    color: var(--sc-text-light);
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.sc-article-body h1 {
    font-size: 34px;
    margin-bottom: 24px;
}

.sc-article-body h2 {
    font-size: 24px;
    margin: 36px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--sc-border);
}

.sc-article-body h3 {
    font-size: 19px;
    margin: 24px 0 12px;
}

.sc-article-body p {
    font-size: 16px;
    color: #334155;
    margin-bottom: 20px;
    line-height: 1.75;
}

.sc-article-body ul, .sc-article-body ol {
    margin: 0 0 24px 24px;
    color: #334155;
}

.sc-article-body li {
    margin-bottom: 8px;
    line-height: 1.65;
}

.sc-callout {
    background: var(--sc-accent-soft);
    border-left: 4px solid var(--sc-accent);
    padding: 20px 24px;
    border-radius: 0 var(--sc-radius-sm) var(--sc-radius-sm) 0;
    margin: 30px 0;
}

.sc-callout p {
    color: var(--sc-primary);
    margin-bottom: 0;
    font-weight: 500;
}

/* Sidebar */
.sc-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sc-widget {
    background: #ffffff;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    padding: 28px;
    box-shadow: var(--sc-shadow);
}

.sc-widget h4 {
    font-size: 18px;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--sc-border);
}

.sc-widget-links {
    list-style: none;
}

.sc-widget-links li {
    margin-bottom: 12px;
}

.sc-widget-links a {
    font-size: 14.5px;
    color: var(--sc-text-main);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

.sc-widget-links a:hover {
    color: var(--sc-accent);
}

/* Contact Form */
.sc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.sc-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}

.sc-form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--sc-text-main);
}

.sc-form-group input, .sc-form-group textarea, .sc-form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-sm);
    font-size: 15px;
    font-family: inherit;
    background: #ffffff;
    transition: border-color 0.2s;
}

.sc-form-group input:focus, .sc-form-group textarea:focus, .sc-form-group select:focus {
    outline: none;
    border-color: var(--sc-accent);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.sc-btn-submit {
    background: var(--sc-accent);
    color: #ffffff;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 16px;
    font-weight: 700;
    padding: 14px 32px;
    border: none;
    border-radius: var(--sc-radius-sm);
    cursor: pointer;
    transition: background 0.2s ease;
}

.sc-btn-submit:hover {
    background: #047857;
}

/* Footer */
.sc-footer {
    background: var(--sc-primary-dark);
    color: #ffffff;
    padding: 70px 0 30px;
    margin-top: 60px;
    border-top: 1px solid #1a3845;
}

.sc-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.sc-footer-col h4 {
    color: #ffffff;
    font-size: 17px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.sc-footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--sc-accent);
}

.sc-footer-desc {
    font-size: 14px;
    color: var(--sc-text-light);
    line-height: 1.65;
    margin-bottom: 20px;
}

.sc-entity-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--sc-radius-sm);
    padding: 14px;
    font-size: 12.5px;
    color: #cbd5e1;
    line-height: 1.6;
}

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

.sc-footer-links li {
    margin-bottom: 11px;
}

.sc-footer-links a {
    color: var(--sc-text-light);
    font-size: 14px;
    transition: color 0.2s;
}

.sc-footer-links a:hover {
    color: #34d399;
}

.sc-contact-chip {
    margin-top: 18px;
    font-size: 13.5px;
    color: var(--sc-text-light);
    line-height: 1.6;
}

.sc-contact-chip a {
    color: #34d399;
    font-weight: 600;
}

.sc-footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 13px;
    color: var(--sc-text-light);
}

.sc-footer-disclaimer {
    font-size: 12px;
    color: #64748b;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 992px) {
    .sc-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .sc-article-layout {
        grid-template-columns: 1fr;
    }
    .sc-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .sc-menu-toggle {
        display: flex;
    }
    .sc-nav {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--sc-border);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        gap: 16px;
    }
    .sc-nav.is-open {
        display: flex;
    }
    .sc-footer-grid {
        grid-template-columns: 1fr;
    }
    .sc-form-grid {
        grid-template-columns: 1fr;
    }
    .sc-hero-content h1 {
        font-size: 32px;
    }
    .sc-article-body {
        padding: 24px;
    }
}