/* ================================
   CARDS
   ================================ */

.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(13, 148, 136, 0.15);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.card-img-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--secondary) 100%);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    opacity: 0.95;
}

.card-img-placeholder-sm {
    height: 150px;
    font-size: 2.5rem;
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* ================================
   FORMS
   ================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: white;
    cursor: pointer;
}

.form-error {
    color: #dc2626;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.form-success {
    color: var(--secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ================================
   GRID LAYOUTS
   ================================ */

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

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

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

/* ================================
   HERO SECTION + PARALLAX
   ================================ */

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) 0;
    color: white;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(135deg, #0f766e 0%, #0d9488 35%, #0891b2 70%, #0e7490 100%);
    background-size: 400% 400%;
}

.hero-bg-parallax {
    position: absolute;
    inset: -20%;
    z-index: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(45, 212, 191, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(8, 145, 178, 0.3) 0%, transparent 45%),
        radial-gradient(ellipse 50% 30% at 20% 60%, rgba(245, 158, 11, 0.12) 0%, transparent 45%);
    will-change: transform;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2rem, 5vw, var(--font-size-5xl));
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    line-height: 1.15;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, var(--font-size-xl));
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn-primary {
    background: white;
    color: var(--primary-dark) !important;
    box-shadow: var(--shadow-lg);
}

.hero-cta .btn-primary:hover {
    background: var(--primary-50);
    color: var(--primary-dark) !important;
    transform: translateY(-3px);
}

.hero-cta .btn-outline {
    border-color: rgba(255, 255, 255, 0.8);
    color: white;
}

.hero-cta .btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    color: white;
}

/* Hero reducido para páginas internas */
.hero-sm {
    min-height: 45vh;
    padding: var(--spacing-2xl) 0;
}

/* Secciones con parallax suave */
.section-parallax {
    position: relative;
    overflow: hidden;
}

.section-parallax .parallax-layer {
    position: absolute;
    pointer-events: none;
    will-change: transform;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-dark {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-soft) 100%);
    color: white;
}

.section-dark .section-title,
.section-dark .section-subtitle,
.section-dark .card-title,
.section-dark .card-text {
    color: inherit;
}

.section-dark .section-subtitle {
    opacity: 0.9;
}

.section-dark .card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.section-dark .card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.12);
}

/* ================================
   SECTION
   ================================ */

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, var(--font-size-4xl));
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    text-align: center;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ================================
   BADGES
   ================================ */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 12px;
    background: var(--primary);
    color: white;
}

.badge-secondary {
    background: var(--secondary);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

/* ================================
   TESTIMONIALS
   ================================ */

.testimonial {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    position: relative;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

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

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-info h4 {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.testimonial-info p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

.testimonial-rating {
    color: #fbbf24;
    margin-bottom: var(--spacing-sm);
}

/* ================================
   MODAL
   ================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* ================================
   ALERTS
   ================================ */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background: #d1fae5;
    border-color: var(--secondary);
    color: #065f46;
}

.alert-error {
    background: #fee2e2;
    border-color: #dc2626;
    color: #991b1b;
}

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

.alert-info {
    background: #dbeafe;
    border-color: var(--primary);
    color: #1e40af;
}

/* ================================
   LOADING SPINNER
   ================================ */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ================================
   TABS
   ================================ */

.tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab-list {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.tab-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.tab-button:hover {
    color: var(--primary);
}

.tab-button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ================================
   CTA BOX (sección contacto)
   ================================ */

.section-cta {
    padding: var(--spacing-3xl) 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--secondary) 100%);
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    color: white;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.cta-text {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    position: relative;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

.cta-btn-primary {
    background: white !important;
    color: var(--primary-dark) !important;
}

.cta-btn-primary:hover {
    background: var(--primary-50) !important;
    color: var(--primary-dark) !important;
}

.cta-btn-outline {
    border-color: rgba(255, 255, 255, 0.9);
    color: white;
}

.cta-btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    color: white;
}