/* ============================================
   RESILIENCIA IA - Salud y Energía Antifragilidad
   Estilos Globales
   ============================================ */

/* === IMPORTAR FUENTES === */
@import url('https://fonts.googleapis.com/css2?family=Titillium+Web:wght@300;400;600;700;900&family=PT+Sans:wght@400;700&family=Roboto+Mono:wght@400;500;700&display=swap');

/* === VARIABLES CSS === */
:root {
    /* Colores principales */
    --color-acero-inicio: #546E7A;
    --color-azul-resistente: #0277BD;
    --color-verde-fortaleza: #388E3C;
    --color-naranja-alerta: #FF6F00;
    --color-blanco: #FFFFFF;
    --color-gris-claro: #ECEFF1;
    --color-gris-medio: #90A4AE;
    --color-texto-oscuro: #263238;
    
    /* Tipografía */
    --font-titulos: 'Titillium Web', sans-serif;
    --font-cuerpo: 'PT Sans', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    /* Tamaños */
    --size-titulo: 43px;
    --size-cuerpo: 17px;
    --size-caption: 13px;
    --line-height-cuerpo: 1.74;
    
    /* Anchos de contenedor */
    --width-wide: 1180px;
    --width-medium: 880px;
    --width-compact: 680px;
    
    /* Hero */
    --hero-height: 86vh;
    
    /* Transiciones */
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === RESET Y BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-cuerpo);
    font-size: var(--size-cuerpo);
    line-height: var(--line-height-cuerpo);
    color: var(--color-texto-oscuro);
    background-color: var(--color-blanco);
    overflow-x: hidden;
}

/* === TIPOGRAFÍA === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-titulos);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: var(--size-titulo);
    font-weight: 900;
}

h2 {
    font-size: 36px;
}

h3 {
    font-size: 28px;
}

h4 {
    font-size: 22px;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

/* === HEADER Y NAVEGACIÓN === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, var(--color-acero-inicio) 0%, var(--color-azul-resistente) 100%);
    box-shadow: 0 2px 20px rgba(2, 119, 189, 0.2);
    z-index: 1000;
    padding: 1rem 0;
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: var(--width-wide);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--color-verde-fortaleza);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 24px;
    color: var(--color-blanco);
}

.logo-text {
    color: var(--color-blanco);
}

.logo-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0;
}

.logo-subtitle {
    font-size: 12px;
    font-family: var(--font-mono);
    opacity: 0.9;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--color-blanco);
    font-weight: 600;
    font-size: 15px;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-verde-fortaleza);
    transition: var(--transition-normal);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-blanco);
    font-size: 28px;
    cursor: pointer;
}

/* === HERO SECTION === */
.hero {
    min-height: var(--hero-height);
    background: linear-gradient(135deg, var(--color-acero-inicio) 0%, var(--color-azul-resistente) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-blanco);
    position: relative;
    overflow: hidden;
    padding: 8rem 2rem 4rem;
    margin-top: 70px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(56, 142, 60, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 111, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: var(--width-wide);
    width: 100%;
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 18px;
    max-width: var(--width-medium);
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* === BOTONES === */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-titulos);
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--color-verde-fortaleza);
    color: var(--color-blanco);
    box-shadow: 0 4px 15px rgba(56, 142, 60, 0.4);
}

.btn-primary:hover {
    background: #2E7D32;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 142, 60, 0.5);
}

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

.btn-secondary:hover {
    background: var(--color-blanco);
    color: var(--color-azul-resistente);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-azul-resistente);
    border: 2px solid var(--color-azul-resistente);
}

.btn-outline:hover {
    background: var(--color-azul-resistente);
    color: var(--color-blanco);
}

/* === SECCIONES === */
.section {
    padding: 5rem 2rem;
}

.section-dark {
    background: linear-gradient(135deg, var(--color-texto-oscuro) 0%, #37474F 100%);
    color: var(--color-blanco);
}

.section-light {
    background: var(--color-gris-claro);
}

.container {
    max-width: var(--width-wide);
    margin: 0 auto;
}

.container-medium {
    max-width: var(--width-medium);
    margin: 0 auto;
}

.container-compact {
    max-width: var(--width-compact);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 42px;
    margin-bottom: 1rem;
    color: var(--color-azul-resistente);
}

.section-dark .section-title {
    color: var(--color-blanco);
}

.section-subtitle {
    font-size: 20px;
    color: var(--color-gris-medio);
    max-width: var(--width-medium);
    margin: 0 auto;
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* === GRIDS === */
.grid {
    display: grid;
    gap: 2rem;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* === CARDS === */
.card {
    background: var(--color-blanco);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-verde-fortaleza) 0%, var(--color-azul-resistente) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-acero-inicio) 0%, var(--color-azul-resistente) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--color-blanco);
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 24px;
    margin-bottom: 1rem;
    color: var(--color-texto-oscuro);
}

.card-text {
    color: var(--color-gris-medio);
    margin-bottom: 1.5rem;
}

/* === STATS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--color-blanco);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    font-family: var(--font-titulos);
    background: linear-gradient(135deg, var(--color-verde-fortaleza) 0%, var(--color-azul-resistente) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 15px;
    font-family: var(--font-mono);
    color: var(--color-gris-medio);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === BADGES === */
.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: var(--size-caption);
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-green {
    background: rgba(56, 142, 60, 0.1);
    color: var(--color-verde-fortaleza);
    border: 1px solid var(--color-verde-fortaleza);
}

.badge-blue {
    background: rgba(2, 119, 189, 0.1);
    color: var(--color-azul-resistente);
    border: 1px solid var(--color-azul-resistente);
}

.badge-orange {
    background: rgba(255, 111, 0, 0.1);
    color: var(--color-naranja-alerta);
    border: 1px solid var(--color-naranja-alerta);
}

/* === TIMELINE === */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline-horizontal {
    display: flex;
    overflow-x: auto;
    gap: 2rem;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
}

.timeline-item {
    min-width: 300px;
    scroll-snap-align: start;
    background: var(--color-blanco);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--color-verde-fortaleza);
    border-radius: 50%;
    border: 4px solid var(--color-blanco);
}

.timeline-time {
    font-family: var(--font-mono);
    font-size: var(--size-caption);
    color: var(--color-azul-resistente);
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-title {
    font-size: 20px;
    margin-bottom: 0.75rem;
}

.timeline-description {
    color: var(--color-gris-medio);
    font-size: 15px;
}

/* === FORMULARIOS === */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--size-caption);
    font-weight: 600;
    color: var(--color-texto-oscuro);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem;
    font-family: var(--font-cuerpo);
    font-size: var(--size-cuerpo);
    border: 2px solid var(--color-gris-claro);
    border-radius: 8px;
    transition: var(--transition-normal);
    background: var(--color-blanco);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-azul-resistente);
    box-shadow: 0 0 0 3px rgba(2, 119, 189, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.form-checkbox input {
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.form-checkbox label {
    font-size: 14px;
    line-height: 1.5;
    cursor: pointer;
}

/* === FOOTER === */
.footer {
    background: linear-gradient(135deg, var(--color-texto-oscuro) 0%, #37474F 100%);
    color: var(--color-blanco);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: var(--width-wide);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 1.5rem;
    color: var(--color-verde-fortaleza);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--color-verde-fortaleza);
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: 0.75rem;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
    max-width: var(--width-wide);
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* === ANIMACIONES === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* === UTILIDADES === */
.text-center {
    text-align: center;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mt-4 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }
.mb-4 { margin-bottom: 3rem; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --size-titulo: 32px;
        --size-cuerpo: 16px;
    }
    
    .header-container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: linear-gradient(135deg, var(--color-acero-inicio) 0%, var(--color-azul-resistente) 100%);
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 38px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .section {
        padding: 3rem 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}