/* ==========================================
   SISTEMA DE GESTIÓN DE VISAS PANAMEÑAS
   Archivo de Estilos Principal
   ========================================== */

/* ==========================================
   VARIABLES CSS
   ========================================== */
:root {
    /* Colores principales */
    --primary-color: #0c3c60;
    --primary-dark: #082945;
    --primary-light: #154d7a;
    
    --secondary-color: #17a2b8;
    --secondary-dark: #138496;
    --secondary-light: #5bc0de;
    
    --accent-color: #28a745;
    --accent-dark: #218838;
    
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    /* Grises */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.25);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Fuentes */
    --font-main: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

/* ==========================================
   NAVBAR
   ========================================== */
.navbar-top {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar-top.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff !important;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-flags {
    display: flex;
    gap: 0.5rem;
}

.flag-icon {
    width: 30px;
    height: 20px;
    border-radius: 3px;
    box-shadow: var(--shadow-sm);
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: #ffffff !important;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

.btn-whatsapp {
    background: #25D366;
    color: #ffffff !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.btn-whatsapp:hover {
    background: #1fb855;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero-section {
    background: linear-gradient(135deg, #0c3c60 0%, #17a2b8 100%);
    color: #ffffff;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
    margin-top: 76px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,165.3C1248,171,1344,149,1392,138.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.feature-item i {
    color: var(--accent-color);
    font-size: 1.25rem;
}

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

.hero-image {
    animation: float 3s ease-in-out infinite;
}

/* ==========================================
   BOTONES
   ========================================== */
.btn-primary-action {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    border: none;
    color: #ffffff;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary-action:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary-color) 100%);
}

.btn-outline-light {
    border: 2px solid #ffffff;
    color: #ffffff;
    background: transparent;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition-normal);
}

.btn-outline-light:hover {
    background: #ffffff;
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* ==========================================
   SECCIONES
   ========================================== */
.services-section,
.process-section,
.requirements-section,
.tracking-section,
.faq-section,
.contact-section {
    padding: 80px 0;
}

.services-section {
    background: var(--gray-100);
}

.process-section {
    background: #ffffff;
}

.requirements-section {
    background: var(--gray-100);
}

.tracking-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
}

.faq-section {
    background: #ffffff;
}

.contact-section {
    background: var(--gray-100);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.tracking-section .section-title {
    color: #ffffff;
}

.tracking-section .section-title::after {
    background: #ffffff;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
}

/* ==========================================
   TARJETAS DE SERVICIOS
   ========================================== */
.service-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    height: 100%;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-md);
}

.service-icon i {
    font-size: 2rem;
    color: #ffffff;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-description {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ==========================================
   PROCESO / TIMELINE
   ========================================== */
.process-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.process-step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 60px;
    width: 2px;
    height: calc(100% + 3rem);
    background: var(--gray-300);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.step-content p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ==========================================
   REQUISITOS
   ========================================== */
.requirements-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    height: 100%;
}

.requirements-title {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--secondary-color);
}

.requirements-list {
    list-style: none;
}

.requirements-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.requirements-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.requirements-list i {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: #ffffff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.requirements-list h5 {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.requirements-list p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.95rem;
}

/* ==========================================
   SEGUIMIENTO / TRACKING
   ========================================== */
.tracking-card {
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.tracking-card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    padding: 2rem;
    text-align: center;
}

.tracking-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.tracking-icon i {
    font-size: 2rem;
}

.tracking-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
}

.tracking-card-body {
    padding: 2.5rem;
}

.tracking-text {
    color: var(--gray-600);
    margin-bottom: 2rem;
    text-align: center;
}

.tracking-form .input-group {
    box-shadow: var(--shadow-md);
    border-radius: 50px;
    overflow: hidden;
}

.tracking-form .form-control {
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
}

.tracking-form .btn {
    border-radius: 0;
    padding: 1rem 2rem;
}

.tracking-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.tracking-info p {
    color: var(--gray-600);
    margin: 0;
}

.tracking-info a {
    color: var(--secondary-color);
    font-weight: 600;
}

.tracking-info a:hover {
    color: var(--secondary-dark);
    text-decoration: underline;
}

/* ==========================================
   FAQ / ACCORDION
   ========================================== */
.accordion-item {
    border: 1px solid var(--gray-300);
    border-radius: 10px !important;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-button {
    background: #ffffff;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.25rem 1.5rem;
    border: none;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--secondary-color);
}

.accordion-body {
    padding: 1.5rem;
    color: var(--gray-600);
    line-height: 1.7;
    background: var(--gray-100);
}

/* ==========================================
   CONTACTO
   ========================================== */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-info-item {
    background: #ffffff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition-normal);
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-info-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.contact-info-item a {
    color: var(--secondary-color);
    font-weight: 600;
}

.contact-info-item a:hover {
    color: var(--secondary-dark);
    text-decoration: underline;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: #ffffff;
    padding: 3rem 0 1rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 1rem;
}

.footer-about {
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
}

.footer h5 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.footer-links {
    list-style: none;
    padding: 0;
}

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

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

.footer-links a:hover {
    color: #ffffff;
    transform: translateX(5px);
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.footer-social a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.copyright {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: rgba(255,255,255,0.7);
}

/* ==========================================
   WHATSAPP FLOTANTE
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #1fb855;
    color: #ffffff;
}

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

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

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 991px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .process-step {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .process-step::before {
        left: 30px;
    }
}

@media (max-width: 767px) {
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .services-section,
    .process-section,
    .requirements-section,
    .tracking-section,
    .faq-section,
    .contact-section {
        padding: 60px 0;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
        font-size: 1.75rem;
    }
}

@media (max-width: 575px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .btn-primary-action,
    .btn-outline-light {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================
   UTILIDADES
   ========================================== */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background: var(--primary-color) !important;
}

.text-secondary {
    color: var(--secondary-color) !important;
}

.bg-secondary {
    background: var(--secondary-color) !important;
}

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}