* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #f4f6f9;
    background-image: 
        radial-gradient(circle at 15% 25%, rgba(13, 59, 102, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 85% 75%, rgba(26, 95, 168, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
    background-attachment: fixed;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* ============ PARTÍCULAS FLOTANTES DE FONDO ============ */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(26, 95, 168, 0.08) 2px, transparent 2px),
        radial-gradient(circle, rgba(59, 130, 246, 0.06) 1px, transparent 1px);
    background-size: 80px 80px, 40px 40px;
    background-position: 0 0, 20px 20px;
    pointer-events: none;
    z-index: 0;
    animation: particleFloat 30s linear infinite;
}

@keyframes particleFloat {
    0% { background-position: 0 0, 20px 20px; }
    100% { background-position: 80px 80px, 100px 100px; }
}

/* ============ ANIMACIONES GLOBALES ============ */
@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 fadeInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

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

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes floatRotate {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(26, 95, 168, 0.4); }
    50% { transform: scale(1.03); box-shadow: 0 0 0 15px rgba(26, 95, 168, 0); }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes shine {
    0% { left: -100%; }
    100% { left: 200%; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 4px 20px rgba(13, 59, 102, 0.06); }
    50% { box-shadow: 0 8px 30px rgba(26, 95, 168, 0.15); }
}

@keyframes borderRotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes bounceIn {
    0% { opacity: 0; transform: scale(0.3); }
    50% { opacity: 1; transform: scale(1.05); }
    70% { transform: scale(0.95); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes slideInFromTop {
    0% { opacity: 0; transform: translateY(-100px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-5px) rotate(-3deg); }
    75% { transform: translateY(-5px) rotate(3deg); }
}

@keyframes waveHeader {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============ ENCABEZADO ============ */
.header {
    background: white;
    padding: 25px 40px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-bottom: 3px solid #0d3b66;
    position: relative;
    animation: slideInFromTop 1s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 5;
    overflow: hidden;
}

/* Barra de luz que cruza el header al cargar */
.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.08), transparent);
    animation: shine 2s ease-in-out 1s;
    pointer-events: none;
}

/* ============ BOTÓN ADMIN ============ */
.btn-admin-acceso {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(13, 59, 102, 0.08);
    color: #0d3b66;
    padding: 8px 12px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 10;
    animation: floatRotate 4s ease-in-out infinite;
}

.btn-admin-acceso:hover {
    background: rgba(13, 59, 102, 0.18);
    transform: scale(1.2) rotate(10deg);
    animation-play-state: paused;
    box-shadow: 0 0 20px rgba(13, 59, 102, 0.3);
}

/* ============ CONTENIDO HEADER ============ */
.header-contenido {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    position: relative;
    z-index: 2;
}

.header-texto {
    flex: 1;
    max-width: 750px;
    animation: fadeInLeft 1s ease-out 0.3s both;
}

.header-texto h1 {
    font-size: 1.5rem;
    color: #0d3b66;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 8px;
}

.header-texto h1 span {
    background: linear-gradient(90deg, #1a5fa8, #3b82f6, #60a5fa, #3b82f6, #1a5fa8);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 3s linear infinite;
    font-weight: 700;
}

.subtitulo {
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
    line-height: 1.5;
    max-width: 700px;
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* ============ LOGO PROFESIONAL ============ */
.header-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: zoomIn 1s ease-out 0.4s both;
    position: relative;
}

/* Anillo animado alrededor del logo */
.header-logo::before {
    content: '';
    position: absolute;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 2px dashed rgba(26, 95, 168, 0.3);
    animation: rotate 15s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.logo-header-img {
    width: 110px;
    height: 110px;
    object-fit: contain;
    padding: 8px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(13, 59, 102, 0.15);
    border: 3px solid #f1f5f9;
    transition: all 0.4s ease;
    animation: float 3.5s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

.logo-header-img:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(13, 59, 102, 0.4);
    animation-play-state: paused;
    border-color: #1a5fa8;
}

/* ============ TARJETAS ============ */
.contenedor-principal {
    flex: 1;
    padding: 50px 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.tarjetas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.tarjeta {
    background: white;
    border-radius: 16px;
    padding: 35px 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    border: 2px solid transparent;
}

/* Entrada escalonada de las tarjetas */
.tarjeta:nth-child(1) { animation-delay: 0.3s; }
.tarjeta:nth-child(2) { animation-delay: 0.45s; }
.tarjeta:nth-child(3) { animation-delay: 0.6s; }
.tarjeta:nth-child(4) { animation-delay: 0.75s; }

/* Barra superior animada */
.tarjeta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 5px;
    background: linear-gradient(90deg, #0d3b66, #1a5fa8, #3b82f6, #60a5fa);
    background-size: 200% 100%;
    transition: width 0.6s ease;
    animation: borderRotate 3s linear infinite;
}

.tarjeta:hover::before {
    width: 100%;
}

/* Efecto de brillo que cruza la tarjeta */
.tarjeta::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.05), transparent);
    transition: left 0.8s ease;
    pointer-events: none;
}

.tarjeta:hover::after {
    left: 100%;
}

.tarjeta:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 25px 50px rgba(13, 59, 102, 0.18);
    border-color: rgba(26, 95, 168, 0.15);
}

/* ============ ICONOS DE TARJETA ============ */
.tarjeta-icono {
    width: 65px;
    height: 65px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}

/* Círculo pulsante alrededor del icono */
.tarjeta-icono::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 14px;
    background: inherit;
    opacity: 0.4;
    z-index: -1;
    animation: pulse 2.5s ease-in-out infinite;
}

.tarjeta:hover .tarjeta-icono {
    transform: scale(1.2) rotate(-8deg);
    box-shadow: 0 10px 25px rgba(0,0,0,0.25);
}

.tarjeta:hover .tarjeta-icono::before {
    animation: pulse 1s ease-in-out infinite;
}

.tarjeta-icono svg {
    width: 32px;
    height: 32px;
    color: white;
    fill: none;
    stroke: white;
    transition: transform 0.5s ease;
}

.tarjeta:hover .tarjeta-icono svg {
    transform: scale(1.15) rotate(8deg);
    animation: iconBounce 0.6s ease-in-out;
}

.tarjeta-icono.azul { background: linear-gradient(135deg, #0d3b66, #1a5fa8, #3b82f6); background-size: 200% 200%; animation: borderRotate 4s ease infinite; }
.tarjeta-icono.verde { background: linear-gradient(135deg, #0a7c5c, #10a37f, #34d399); background-size: 200% 200%; animation: borderRotate 4s ease infinite; }
.tarjeta-icono.naranja { background: linear-gradient(135deg, #c45500, #f08519, #fbbf24); background-size: 200% 200%; animation: borderRotate 4s ease infinite; }
.tarjeta-icono.morado { background: linear-gradient(135deg, #6d28d9, #a855f7, #c084fc); background-size: 200% 200%; animation: borderRotate 4s ease infinite; }

/* ============ TEXTO DE TARJETA ============ */
.tarjeta h2 {
    font-size: 1.25rem;
    color: #0d3b66;
    margin-bottom: 10px;
    font-weight: 600;
    transition: color 0.3s ease, transform 0.3s ease;
}

.tarjeta:hover h2 {
    color: #1a5fa8;
    transform: translateX(5px);
}

.tarjeta p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 25px;
    flex: 1;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.tarjeta:hover p {
    color: #444;
}

/* ============ BOTONES ============ */
.btn-principal {
    background: linear-gradient(135deg, #0d3b66, #1a5fa8);
    background-size: 200% 200%;
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-block;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(13, 59, 102, 0.2);
}

.btn-principal::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
    z-index: -1;
}

.btn-principal:hover::before {
    left: 100%;
}

.btn-principal:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(26, 95, 168, 0.5);
    background-position: 100% 100%;
}

.btn-principal:active {
    transform: translateY(-1px) scale(1.02);
}

/* ============ PIE DE PÁGINA ============ */
.footer {
    background: linear-gradient(135deg, #0d3b66, #1a5fa8);
    background-size: 200% 200%;
    animation: borderRotate 8s ease infinite;
    color: white;
    text-align: center;
    padding: 25px 20px;
    font-size: 0.85rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    animation: shine 4s ease-in-out infinite;
    pointer-events: none;
}

.footer p {
    margin: 5px 0;
    opacity: 0.95;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.footer:hover p {
    opacity: 1;
    letter-spacing: 0.5px;
}

/* ============ HEADER SIMPLE (páginas internas) ============ */
.header-simple {
    background: linear-gradient(135deg, #0d3b66, #1a5fa8);
    background-size: 200% 200%;
    animation: borderRotate 6s ease infinite;
    color: white;
    padding: 25px 20px;
    animation: fadeInDown 0.8s ease-out, borderRotate 6s ease infinite;
}

.header-simple-contenido {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.header-simple h1 {
    font-size: 1.6rem;
    margin: 10px 0 5px 0;
}

.header-simple p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.btn-volver {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    background: rgba(255,255,255,0.15);
    padding: 8px 16px;
    border-radius: 8px;
    display: inline-block;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-volver:hover {
    background: rgba(255,255,255,0.35);
    transform: translateX(-5px) scale(1.05);
}

/* ============ FORMULARIO ============ */
.contenedor-formulario {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
    flex: 1;
    position: relative;
    z-index: 1;
}

.formulario-caja {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    animation: zoomIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.2s both;
    position: relative;
    overflow: hidden;
}

.formulario-caja::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #0d3b66, #1a5fa8, #3b82f6, #60a5fa, #3b82f6, #1a5fa8, #0d3b66);
    background-size: 200% 100%;
    animation: borderRotate 4s linear infinite;
}

.formulario-caja h2 {
    color: #0d3b66;
    font-size: 1.5rem;
    margin-bottom: 10px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.formulario-descripcion {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.campo {
    margin-bottom: 22px;
    animation: fadeInUp 0.6s ease-out both;
}

.campo:nth-child(1) { animation-delay: 0.3s; }
.campo:nth-child(2) { animation-delay: 0.35s; }
.campo:nth-child(3) { animation-delay: 0.4s; }
.campo:nth-child(4) { animation-delay: 0.45s; }
.campo:nth-child(5) { animation-delay: 0.5s; }
.campo:nth-child(6) { animation-delay: 0.55s; }
.campo:nth-child(7) { animation-delay: 0.6s; }
.campo:nth-child(8) { animation-delay: 0.65s; }

.campo label {
    display: block;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.campo input[type="text"],
.campo input[type="email"],
.campo input[type="tel"],
.campo input[type="number"],
.campo select,
.campo textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e6ed;
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: #fafbfc;
}

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
    outline: none;
    border-color: #1a5fa8;
    background: white;
    box-shadow: 0 0 0 4px rgba(26, 95, 168, 0.15);
    transform: translateY(-3px);
}

.campo input:focus + label,
.campo select:focus + label {
    color: #1a5fa8;
}

.campo textarea {
    resize: vertical;
    min-height: 80px;
}

.campo small {
    display: block;
    color: #888;
    font-size: 0.8rem;
    margin-top: 6px;
}

.fila-doble {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.campo input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 2px dashed #1a5fa8;
    border-radius: 10px;
    background: #f0f7ff;
    cursor: pointer;
    transition: all 0.3s ease;
}

.campo input[type="file"]:hover {
    background: #e0f0ff;
    border-color: #0d3b66;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 95, 168, 0.15);
}

/* ============ BOTÓN ENVIAR ============ */
.btn-enviar {
    width: 100%;
    background: linear-gradient(135deg, #0d3b66, #1a5fa8, #3b82f6);
    background-size: 200% 200%;
    color: white;
    padding: 16px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-top: 10px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(13, 59, 102, 0.2);
}

.btn-enviar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.7s ease;
}

.btn-enviar:hover::after {
    left: 100%;
}

.btn-enviar:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 35px rgba(13, 59, 102, 0.5);
    background-position: 100% 100%;
}

.btn-enviar:active {
    transform: translateY(-2px) scale(1);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .header {
        padding: 20px;
    }
    
    .header-contenido {
        flex-direction: column-reverse;
        text-align: center;
        gap: 20px;
    }
    
    .header-texto h1 {
        font-size: 1.2rem;
    }
    
    .subtitulo {
        font-size: 0.8rem;
    }
    
    .logo-header-img {
        width: 90px;
        height: 90px;
    }
    
    .header-logo::before {
        width: 105px;
        height: 105px;
    }
    
    .btn-admin-acceso {
        top: 10px;
        right: 10px;
        font-size: 0.95rem;
        padding: 6px 10px;
    }
    
    .tarjeta:hover {
        transform: translateY(-6px) scale(1.01);
    }
}

@media (max-width: 600px) {
    .formulario-caja {
        padding: 25px 20px;
    }
    .fila-doble {
        grid-template-columns: 1fr;
    }
}