/**
 * TecnoFibras - Estilos Principales
 * Colores corporativos: #61040a (Wine) y #12133f (Navy)
 */

/* ========================================
   VARIABLES Y RESET
   ======================================== */
:root {
    /* Colores corporativos */
    --primary-wine: #61040a;
    --primary-navy: #12133f;
    --white: #ffffff;
    --black: #000000;
    
    /* Grises */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Colores de estado */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
    --radius-xl: 0;
    --radius-full: 0;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: #5a6b7d;
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   UTILIDADES
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: 1.5rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-2xl);
}

/* ========================================
   BOTONES
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-wine), var(--primary-navy));
    color: var(--white);
}

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

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

.btn-outline:hover {
    background: var(--primary-wine);
    color: var(--white);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-white:hover {
    background: white;
    color: var(--primary-wine);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ========================================
   ANIMACIONES
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #61040a 0%, #12133f 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    animation: fadeInDown 0.5s ease-out;
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    transition: var(--transition);
}

.navbar-logo:hover {
    transform: scale(1.05);
}

.navbar-logo img {
    height: 50px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.navbar-logo span {
    display: none;
}

@media (min-width: 768px) {
    .navbar-logo span {
        display: inline;
    }
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.navbar-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.navbar-link:hover,
.navbar-link.active {
    color: white;
}

.navbar-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: white;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.language-switcher {
    display: flex;
    gap: var(--spacing-sm);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
    transition: var(--transition);
    background: transparent;
    border: 1px solid transparent;
}

.lang-btn img {
    width: 24px;
    height: 18px;
    object-fit: cover;
    border-radius: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.lang-btn.active {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    transition: var(--transition);
}

.user-btn:hover {
    background: var(--gray-200);
}

.user-btn img,
.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-wine);
    color: var(--white);
    font-weight: 600;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 200px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    transition: var(--transition);
}

.user-dropdown a:hover {
    background: var(--gray-50);
    color: var(--primary-wine);
}

.mobile-menu-btn {
    display: none;
    padding: 0.5rem;
    color: var(--gray-700);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--gray-200);
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    padding: 0.75rem 0;
    color: var(--gray-700);
    font-weight: 500;
}

.mobile-menu a:hover {
    color: var(--primary-wine);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: linear-gradient(135deg, #61040a 0%, #12133f 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-logo img {
    height: 40px;
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

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

.footer-contact li {
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-social-icons a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.footer-social-icons i {
    width: 24px;
    height: 24px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    min-height: calc(100vh - 200px);
    padding-top: 80px;
}

/* ========================================
   ALERTS
   ======================================== */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) auto;
    max-width: 600px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #f59e0b;
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-wine);
    box-shadow: 0 0 0 3px rgba(97, 4, 10, 0.1);
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--gray-500);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}