/* =========================================
   STUDENTXPERIENCE — COMPONENTES
   Framework de Diseño Claude · v2.0
   ========================================= */

/* ── Trip Card Component ─────────────────── */
.trip-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.trip-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-gold-border);
}

.trip-card-image {
    width: 100%;
    height: 210px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--color-gold-dark) 0%, var(--color-gold-light) 100%);
    position: relative;
}

.trip-card-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 5px 14px;
    background: var(--color-gold);
    color: var(--color-white);
    border-radius: var(--border-radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    box-shadow: var(--shadow-gold);
}

.trip-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.trip-card-header { margin-bottom: var(--spacing-md); }

.trip-card-category {
    font-size: var(--text-xs);
    color: var(--color-gold);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.trip-card-title {
    font-size: var(--text-2xl);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.trip-card-date,
.trip-card-location {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-gray-medium);
    font-size: var(--text-sm);
    margin-bottom: 6px;
}

.trip-card-date i,
.trip-card-location i {
    color: var(--color-gold);
    font-size: 12px;
    flex-shrink: 0;
}

.trip-card-description {
    font-size: var(--text-base);
    color: var(--color-gray-medium);
    line-height: 1.75;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.trip-card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: var(--spacing-md);
}

.trip-feature-tag {
    padding: 5px 12px;
    background: var(--color-gold-subtle);
    color: var(--color-gold-dark);
    border-radius: var(--border-radius-sm);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
}

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

.trip-card-price { display: flex; flex-direction: column; }

.price-label {
    font-size: var(--text-xs);
    color: var(--color-gray-soft);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: var(--font-weight-semibold);
}

.price-amount {
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gold-dark);
    letter-spacing: -0.03em;
    line-height: 1;
}

.trip-card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-card {
    padding: 10px 18px;
    font-size: var(--text-sm);
    border-radius: var(--border-radius-full);
    border: none;
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    letter-spacing: -0.01em;
}

.btn-card-primary {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
}

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

.btn-card-secondary {
    background: transparent;
    color: var(--color-gold-dark);
    border: 1.5px solid var(--color-gold-border);
}

.btn-card-secondary:hover {
    background: var(--color-gold-subtle);
    border-color: var(--color-gold);
}

/* ── Modal Component ─────────────────────── */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(28,25,23,0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modal-container {
    position: relative;
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    max-width: 680px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    z-index: 2001;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid var(--color-border);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--color-gold-dark) 0%, var(--color-gold) 60%, var(--color-gold-light) 100%);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.modal-header h2 {
    color: var(--color-white);
    font-size: var(--text-2xl);
    letter-spacing: -0.02em;
}

.modal-close {
    background: rgba(255,255,255,0.15);
    border: none;
    color: var(--color-white);
    font-size: 20px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
}

.modal-close:hover { background: rgba(255,255,255,0.28); }

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

/* ── Registration Form ───────────────────── */
.registration-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* El atributo hidden debe ganarle al display:flex de arriba */
.registration-form[hidden] {
    display: none;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-row:has(.form-group:only-child) {
    grid-template-columns: 1fr;
}

.form-group { display: flex; flex-direction: column; }

.form-group label {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-charcoal);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-size: var(--text-base);
    color: var(--color-gray-dark);
    background: var(--color-cream);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-gold);
    background: var(--color-white);
    box-shadow: 0 0 0 3px var(--color-gold-subtle);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(220,38,38,0.08);
}

.form-group .error-message {
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-top: 4px;
    font-weight: var(--font-weight-medium);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-sm);
}

/* ── Confirmación de registro ────────────── */
.registration-success {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.registration-success[hidden] {
    display: none;
}

.registration-success .success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-gold-subtle);
    border: 1px solid var(--color-gold-border);
    color: var(--color-gold);
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.registration-success h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-charcoal);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
}

.registration-success .success-lead {
    color: var(--color-gray-medium);
    line-height: 1.7;
    max-width: 460px;
    margin: 0 auto var(--spacing-sm);
}

.registration-success .success-lead strong {
    color: var(--color-charcoal);
    font-weight: var(--font-weight-semibold);
}

.registration-success .success-note {
    font-size: var(--text-sm);
    color: var(--color-gray-medium);
    max-width: 460px;
    margin: 0 auto var(--spacing-lg);
}

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--text-sm);
    margin-top: var(--spacing-md);
    display: none;
    border-left: 3px solid;
    font-weight: var(--font-weight-medium);
}

.form-message.success {
    display: block;
    background: rgba(22,163,74,0.08);
    color: var(--color-success);
    border-color: var(--color-success);
}

.form-message.error {
    display: block;
    background: rgba(220,38,38,0.08);
    color: var(--color-error);
    border-color: var(--color-error);
}

.form-message.loading {
    display: block;
    background: var(--color-cream);
    color: var(--color-gray-medium);
    border-color: var(--color-info);
}

/* ── Loading Spinner ─────────────────────── */
.loading-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-radius: var(--border-radius-full);
    border-top-color: var(--color-white);
    animation: spin 0.7s linear infinite;
}

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

/* ── Scroll to Top ───────────────────────── */
.scroll-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius-full);
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-gold);
    transition: all var(--transition-normal);
    opacity: 0;
    pointer-events: none;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-to-top.visible { opacity: 1; pointer-events: all; }

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold-lg);
}

/* ── Animations ──────────────────────────── */
.slide-in-left  { animation: slideInLeft  0.5s cubic-bezier(0.16,1,0.3,1) both; }
.slide-in-right { animation: slideInRight 0.5s cubic-bezier(0.16,1,0.3,1) both; }

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}