/* MESCI - Metrología y Servicios de Calificación e Ingeniería */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Rajdhani:wght@500;600;700&display=swap');

:root {
    --mesci-green: #2E8B3C;
    --mesci-green-light: #4CAF50;
    --mesci-green-dark: #1B5E20;
    --mesci-blue: #1565C0;
    --mesci-blue-light: #42A5F5;
    --mesci-blue-dark: #0D47A1;
    --mesci-dark: #0f1419;
    --mesci-gray: #f4f7fa;
    --mesci-text: #2c3e50;
    --mesci-muted: #6c757d;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    color: var(--mesci-text);
    background: #fff;
    line-height: 1.7;
}

h1, h2, h3, h4, h5, h6,
.display-font {
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 0.02em;
}

/* Colores utilitarios */
.bg-mesci-green { background-color: var(--mesci-green) !important; }
.bg-mesci-blue { background-color: var(--mesci-blue) !important; }
.bg-mesci-dark { background-color: var(--mesci-dark) !important; }
.bg-mesci-gray { background-color: var(--mesci-gray) !important; }
.text-mesci-green { color: var(--mesci-green) !important; }
.text-mesci-blue { color: var(--mesci-blue) !important; }
.text-mesci-light { color: #A5D6A7 !important; }

/* Botones */
.btn-mesci {
    background: linear-gradient(135deg, var(--mesci-green) 0%, var(--mesci-green-dark) 100%);
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: 8px;
    transition: var(--transition);
}
.btn-mesci:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(46, 139, 60, 0.35);
}

.btn-mesci-blue {
    background: linear-gradient(135deg, var(--mesci-blue) 0%, var(--mesci-blue-dark) 100%);
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: 8px;
    transition: var(--transition);
}
.btn-mesci-blue:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(21, 101, 192, 0.35);
}

.btn-outline-mesci {
    color: var(--mesci-green);
    border: 2px solid var(--mesci-green);
    background: transparent;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
}
.btn-outline-mesci:hover {
    background: var(--mesci-green);
    color: white;
}

/* Navbar */
.navbar-mesci {
    background: rgba(15, 20, 25, 0.95) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(76, 175, 80, 0.2);
    padding: 0.5rem 0;
    transition: var(--transition);
}
.navbar-mesci.scrolled {
    box-shadow: var(--shadow-md);
}
.navbar-brand img {
    height: 52px;
    width: auto;
    transition: var(--transition);
}
.navbar-brand:hover img {
    filter: brightness(1.1);
}
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
    position: relative;
}
.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: #fff;
    background: rgba(76, 175, 80, 0.15);
}
.navbar-dark .navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--mesci-green-light);
    border-radius: 2px;
}
.btn-nav-cta {
    background: var(--mesci-green);
    color: white !important;
    border-radius: 8px !important;
    margin-left: 0.5rem;
}
.btn-nav-cta:hover {
    background: var(--mesci-green-light) !important;
}

/* Hero */
.hero-section {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--mesci-dark);
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.35;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(15, 20, 25, 0.92) 0%,
        rgba(27, 94, 32, 0.75) 50%,
        rgba(13, 71, 161, 0.7) 100%);
}
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(76, 175, 80, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(76, 175, 80, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 2;
}
.hero-logo {
    width: 140px;
    height: auto;
    filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
    margin-bottom: 1.5rem;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(76, 175, 80, 0.2);
    border: 1px solid rgba(76, 175, 80, 0.4);
    color: #A5D6A7;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}
.hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat strong {
    display: block;
    font-family: 'Rajdhani', sans-serif;
    font-size: 2rem;
    color: var(--mesci-green-light);
    line-height: 1;
}
.hero-stat span {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

/* Page headers */
.page-header {
    background: linear-gradient(135deg, var(--mesci-dark) 0%, var(--mesci-green-dark) 100%);
    color: white;
    padding: 4rem 0 3rem;
    position: relative;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/sidebar-tech.jpeg') center/cover;
    opacity: 0.12;
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.breadcrumb-mesci {
    font-size: 0.9rem;
    opacity: 0.8;
}
.breadcrumb-mesci a {
    color: #A5D6A7;
    text-decoration: none;
}

/* Secciones */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.section-subtitle {
    color: var(--mesci-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
}
.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--mesci-green), var(--mesci-blue));
    border-radius: 2px;
    margin: 0.75rem auto 0;
}

/* Tarjetas */
.card-tech {
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}
.card-tech:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(76, 175, 80, 0.3);
}
.card-tech .card-img-top {
    height: 220px;
    object-fit: cover;
}
.card-tech .card-img-overlay-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--mesci-green);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.service-card {
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.06) !important;
    border-radius: var(--radius) !important;
    overflow: hidden;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--mesci-green) !important;
}
.service-card .service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--mesci-green), var(--mesci-green-dark));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin: 0 auto 1rem;
}

.product-card {
    transition: var(--transition);
    border-radius: var(--radius) !important;
    overflow: hidden;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg) !important;
}
.product-card .product-img {
    height: 200px;
    object-fit: contain;
    background: var(--mesci-gray);
    padding: 1rem;
}

/* Iconos */
.icon-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.icon-circle-lg {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}
.icon-circle-sm {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* Valores */
.value-card {
    text-align: center;
    padding: 1.5rem;
    border-radius: var(--radius);
    background: white;
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
    height: 100%;
}
.value-card:hover {
    background: var(--mesci-gray);
    border-color: var(--mesci-green);
}
.value-card i {
    font-size: 2rem;
    color: var(--mesci-green);
    margin-bottom: 0.75rem;
}

/* Acreditaciones */
.accreditation-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition);
}
.accreditation-card:hover {
    box-shadow: var(--shadow-lg);
}
.accreditation-card.temp { border-color: var(--mesci-green); }
.accreditation-card.humidity { border-color: var(--mesci-blue); }
.accreditation-img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}

/* CTA */
.cta-section {
    background: linear-gradient(135deg, var(--mesci-green-dark) 0%, var(--mesci-green) 50%, var(--mesci-blue-dark) 100%);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/hero-bg.jpeg') center/cover;
    opacity: 0.1;
}

/* Formularios */
.form-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 2rem;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--mesci-green);
}
.form-tab {
    flex: 1;
    padding: 0.85rem 1rem;
    text-align: center;
    background: white;
    border: none;
    font-weight: 600;
    color: var(--mesci-green);
    cursor: pointer;
    transition: var(--transition);
}
.form-tab.active {
    background: var(--mesci-green);
    color: white;
}
.form-tab:hover:not(.active) {
    background: rgba(46, 139, 60, 0.08);
}
.form-panel { display: none; }
.form-panel.active { display: block; }
.form-control:focus, .form-select:focus {
    border-color: var(--mesci-green);
    box-shadow: 0 0 0 0.25rem rgba(46, 139, 60, 0.2);
}
.form-label { font-weight: 600; font-size: 0.9rem; }

.contact-info-card {
    background: linear-gradient(160deg, var(--mesci-dark) 0%, #1a2e1a 100%);
    color: white;
    border-radius: var(--radius);
    padding: 2rem;
}
.contact-info-card a {
    color: #A5D6A7;
    text-decoration: none;
}
.contact-info-card a:hover {
    color: white;
}

/* Footer */
footer {
    background: var(--mesci-dark) !important;
    border-top: 3px solid var(--mesci-green);
}
footer .footer-logo {
    height: 70px;
    margin-bottom: 1rem;
}
footer a:hover {
    color: var(--mesci-green-light) !important;
}

/* Animaciones */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll to top */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--mesci-green);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}
.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}
.scroll-top:hover {
    background: var(--mesci-green-light);
    transform: translateY(-3px);
}

.border-mesci { border-color: var(--mesci-green) !important; }

html { scroll-behavior: smooth; }
::selection {
    background: var(--mesci-green-light);
    color: white;
}

@media (max-width: 768px) {
    .hero-section { min-height: 75vh; }
    .hero-section h1 { font-size: 1.75rem; }
    .hero-logo { width: 100px; }
    .hero-stats { gap: 1.25rem; }
    .page-header h1 { font-size: 1.75rem; }
    .section-title { font-size: 1.5rem; }
    .form-tabs { flex-direction: column; }
}