/* ====================================
   GasesAmbientales - Estilos CSS
   Sitio web de Gases y Seguridad
   ==================================== */

/* Variables CSS */
:root {
    --blue-50: #e6f2ff;
    --blue-100: #b3d9ff;
    --blue-600: #0066CC;
    --blue-700: #0052a3;
    --blue-800: #003d7a;
    --yellow-50: #fffbeb;
    --yellow-100: #fef3c7;
    --yellow-400: #FBBF24;
    --yellow-500: #F59E0B;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 0.75rem;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
}

html {
    scroll-behavior: smooth;
}

/* Contenedor */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ====================================
   Banner Sin Cookies
   ==================================== */
.no-cookies-banner {
    background-color: var(--blue-700);
    color: var(--white);
    padding: 1rem;
    text-align: center;
    font-size: 0.875rem;
}

/* ====================================
   Navbar
   ==================================== */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    max-width: 1200px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--blue-600);
}

.logo span {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blue-700);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--blue-600);
}

.nav-links a.nav-politicas {
    color: var(--yellow-500);
}

/* ====================================
   Hero
   ==================================== */
.hero {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    color: var(--white);
    padding: 5rem 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.contact-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-info h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--yellow-400);
}

.contact-info p {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.contact-info strong {
    font-weight: 600;
    color: var(--yellow-400);
}

.hero-icon svg {
    width: 16rem;
    height: 16rem;
    opacity: 0.8;
}

.hero-page {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.hero-page h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-page p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ====================================
   Botones
   ==================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--yellow-500);
    color: var(--gray-800);
}

.btn-primary:hover {
    background-color: var(--yellow-400);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--blue-600);
}

.btn-block {
    width: 100%;
}

/* ====================================
   Secciones
   ==================================== */
.section-info {
    background-color: var(--gray-50);
    padding: 4rem 0;
    text-align: center;
}

.section-info h2 {
    color: var(--blue-700);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.section-info p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--gray-600);
}

.section-cards {
    padding: 5rem 0;
}

.section-cards h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--blue-700);
    margin-bottom: 3rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--blue-100);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.card-icon {
    width: 4rem;
    height: 4rem;
    background-color: var(--yellow-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--yellow-500);
}

.card h3 {
    font-size: 1.25rem;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.card p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.link {
    color: var(--blue-600);
    text-decoration: none;
    font-weight: 500;
}

.link:hover {
    color: var(--blue-800);
}

.section-warning {
    background-color: var(--yellow-50);
    padding: 4rem 0;
    border: 2px solid var(--yellow-400);
}

.section-warning .container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}

.warning-icon {
    width: 8rem;
    height: 8rem;
    background-color: var(--yellow-400);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.warning-icon svg {
    width: 4rem;
    height: 4rem;
    color: var(--white);
}

.warning-content h2 {
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.warning-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.section-cta {
    background-color: var(--blue-600);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.section-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.section-cta p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-banners {
    background-color: var(--gray-50);
    padding: 4rem 0;
}

.banners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.banner-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--blue-600);
}

.banner-card h3 {
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.banner-card p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

/* ====================================
   Quiénes Somos
   ==================================== */
.section-content {
    padding: 4rem 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.content-text h2 {
    color: var(--blue-700);
    margin-bottom: 1.5rem;
}

.content-text p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.content-icon {
    background-color: var(--blue-50);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
}

.content-icon svg {
    width: 100%;
    height: 200px;
    color: var(--blue-600);
    opacity: 0.6;
}

.section-principios {
    background-color: var(--blue-50);
    padding: 4rem 0;
}

.section-principios h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--blue-700);
    margin-bottom: 3rem;
}

.principios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.principio-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.principio-icon {
    width: 4rem;
    height: 4rem;
    background-color: var(--yellow-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.principio-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--yellow-500);
}

.principio-card h3 {
    color: var(--gray-800);
    margin-bottom: 1rem;
}

/* ====================================
   Servicios
   ==================================== */
.section-servicios-main {
    padding: 4rem 0;
}

.section-servicios-main h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--blue-700);
    margin-bottom: 3rem;
}

.servicio-detalle {
    background-color: var(--blue-50);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 2rem;
    align-items: center;
}

.servicio-info h3 {
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.servicio-info p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.servicio-lista {
    list-style: none;
}

.servicio-lista li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--gray-600);
}

.servicio-lista li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--blue-600);
    font-weight: bold;
}

.servicio-imagen {
    width: 200px;
    height: 200px;
    background-color: var(--yellow-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.servicio-imagen svg {
    width: 5rem;
    height: 5rem;
    color: var(--yellow-500);
}

.section-otros-servicios {
    background-color: var(--gray-50);
    padding: 4rem 0;
}

.section-otros-servicios h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--blue-700);
    margin-bottom: 3rem;
}

.otros-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.otro-servicio {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.otro-icon {
    width: 4rem;
    height: 4rem;
    background-color: var(--blue-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.otro-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--blue-600);
}

.otro-servicio h4 {
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.otro-servicio p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ====================================
   Contacto
   ==================================== */
.section-contacto {
    padding: 4rem 0;
}

.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.formulario h2,
.info-contacto h2 {
    color: var(--blue-700);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.alerta-exito {
    background-color: var(--blue-50);
    border: 1px solid var(--blue-600);
    color: var(--blue-800);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.info-card {
    background-color: var(--blue-50);
    border-radius: var(--radius);
    padding: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.info-icon {
    background-color: var(--yellow-100);
    padding: 0.75rem;
    border-radius: 50%;
    margin-right: 1rem;
}

.info-icon svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--yellow-500);
}

.info-item h4 {
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--gray-600);
}

.section-faq {
    background-color: var(--gray-50);
    padding: 4rem 0;
}

.section-faq h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--blue-700);
    margin-bottom: 2rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.faq-item h4 {
    color: var(--gray-800);
    margin-bottom: 0.75rem;
}

.faq-item p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ====================================
   Políticas
   ==================================== */
.section-politicas {
    padding: 4rem 0;
}

.section-politicas.bg-alt {
    background-color: var(--gray-50);
}

.politica-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.politica-card h2 {
    color: var(--blue-700);
    margin-bottom: 1.5rem;
}

.politica-card h3 {
    color: var(--gray-800);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.politica-card p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.politica-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.politica-icon {
    background-color: var(--blue-100);
    padding: 1rem;
    border-radius: 50%;
}

.politica-icon svg {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--blue-600);
}

.tag-success {
    color: var(--blue-600);
    font-weight: 600;
    margin-top: 0.25rem;
}

.ultima-actualizacion {
    font-style: italic;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 2rem;
}

.check-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.check-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-600);
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--blue-600);
}

.compromiso-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.compromiso-item {
    background-color: var(--blue-50);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.compromiso-item h4 {
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.compromiso-item p {
    font-size: 0.875rem;
}

/* ====================================
   Footer
   ==================================== */
.footer {
    background-color: var(--blue-700);
    color: var(--white);
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    padding: 3rem 0;
}

.footer-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.footer-section p {
    color: var(--blue-100);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--blue-100);
    text-decoration: none;
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    color: var(--blue-100);
}

.footer-contact svg {
    width: 1rem;
    height: 1rem;
    margin-right: 0.75rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid var(--blue-600);
    padding: 2rem 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--blue-100);
    margin-bottom: 0.5rem;
}

.footer-bottom a {
    color: var(--blue-100);
    text-decoration: underline;
}

.footer-bottom a:hover {
    color: var(--white);
}

/* ====================================
   Responsive
   ==================================== */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .principios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .compromiso-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-icon svg {
        width: 10rem;
        height: 10rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .contacto-grid {
        grid-template-columns: 1fr;
    }

    .banners-grid {
        grid-template-columns: 1fr;
    }

    .servicio-detalle {
        grid-template-columns: 1fr;
    }

    .servicio-imagen {
        margin: 0 auto;
        order: -1;
    }

    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-contact li {
        justify-content: center;
    }

    .section-warning .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .warning-icon {
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-page h1 {
        font-size: 1.75rem;
    }

    .cards-grid,
    .principios-grid,
    .faq-grid,
    .otros-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}