/**
 * Estilos Principales - Pilaris PWA
 * 
 * @package Pilaris\Frontend
 * @version 1.0.0
 */

/* ===== VARIABLES CSS ===== */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    --navbar-height: 60px;
    --bottom-nav-height: 60px;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ===== ESTILOS GLOBALES ===== */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    color: white;
}

.loading-content {
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

.loading-logo {
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.loading-text h4 {
    margin-bottom: 0.5rem;
    font-weight: 300;
    letter-spacing: 2px;
}

.loading-text p {
    margin-bottom: 2rem;
    opacity: 0.8;
}

.loading-spinner {
    margin-top: 1rem;
}

/* ===== APP CONTAINER ===== */
.app-container {
    min-height: 100vh;
    padding-top: var(--navbar-height);
    padding-bottom: var(--bottom-nav-height);
}

@media (min-width: 992px) {
    .app-container {
        padding-bottom: 0;
    }
}

/* ===== NAVIGATION ===== */
.navbar {
    height: var(--navbar-height);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--border-radius);
    margin: 0 0.25rem;
}

.nav-link:hover {
    background-color: rgba(0, 123, 255, 0.1);
    color: var(--primary-color) !important;
}

.nav-link.active {
    background-color: var(--primary-color);
    color: white !important;
}

/* ===== BOTTOM NAVIGATION ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: white;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--secondary-color);
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.1);
}

.bottom-nav-item i {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.bottom-nav-item span {
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    min-height: calc(100vh - var(--navbar-height) - var(--bottom-nav-height));
    padding: 1rem 0;
}

@media (min-width: 992px) {
    .main-content {
        min-height: calc(100vh - var(--navbar-height));
    }
}

/* ===== CARDS ===== */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-bottom: none;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* ===== BUTTONS ===== */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: none;
    padding: 0.75rem 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    box-shadow: 0 2px 10px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    transform: translateY(-1px);
}

.btn-floating {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + 1rem);
    right: 1rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 999;
}

@media (min-width: 992px) {
    .btn-floating {
        bottom: 1rem;
    }
}

/* ===== FORMS ===== */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group-text {
    background-color: var(--light-color);
    border: 2px solid #e9ecef;
    border-right: none;
}

/* ===== BADGES ===== */
.badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
}

.badge-level-principiante {
    background-color: var(--success-color);
}

.badge-level-intermedio {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

.badge-level-avanzado {
    background-color: var(--danger-color);
}

.badge-status-confirmada {
    background-color: var(--success-color);
}

.badge-status-pendiente {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

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

/* ===== CLASE CARDS ===== */
.clase-card {
    margin-bottom: 1rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.clase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
}

.clase-card.nivel-principiante::before {
    background: var(--success-color);
}

.clase-card.nivel-intermedio::before {
    background: var(--warning-color);
}

.clase-card.nivel-avanzado::before {
    background: var(--danger-color);
}

.clase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.clase-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin: 0;
    color: var(--dark-color);
}

.clase-time {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.clase-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
}

.clase-instructor {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.clase-capacity {
    font-size: 0.85rem;
    color: var(--secondary-color);
}

.clase-capacity.full {
    color: var(--danger-color);
    font-weight: 600;
}

/* ===== RESERVA CARDS ===== */
.reserva-card {
    margin-bottom: 1rem;
    position: relative;
}

.reserva-card.proxima {
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(90deg, rgba(0, 123, 255, 0.05), transparent);
}

.reserva-card.completada {
    opacity: 0.8;
}

.reserva-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.reserva-date {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.reserva-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ===== CALENDAR ===== */
.calendar-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.calendar-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-nav {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.calendar-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-day-header {
    padding: 1rem 0.5rem;
    text-align: center;
    font-weight: 600;
    background: var(--light-color);
    color: var(--secondary-color);
    font-size: 0.85rem;
}

.calendar-day {
    padding: 1rem 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid #f0f0f0;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calendar-day:hover {
    background: rgba(0, 123, 255, 0.1);
}

.calendar-day.other-month {
    color: var(--secondary-color);
    opacity: 0.5;
}

.calendar-day.today {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.calendar-day.selected {
    background: var(--success-color);
    color: white;
}

.calendar-day.has-classes {
    position: relative;
}

.calendar-day.has-classes::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--warning-color);
    border-radius: 50%;
}

/* ===== MODALS ===== */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    background: var(--primary-color);
    color: white;
    border-bottom: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
    padding: 1rem 2rem;
}

/* ===== INSTALL BANNER ===== */
.install-banner {
    position: fixed;
    bottom: var(--bottom-nav-height);
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid #e9ecef;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    animation: slideUp 0.3s ease;
}

@media (min-width: 992px) {
    .install-banner {
        bottom: 0;
    }
}

.install-content {
    display: flex;
    align-items: center;
    padding: 1rem;
    gap: 1rem;
}

.install-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.install-text {
    flex: 1;
}

.install-text strong {
    display: block;
    margin-bottom: 0.25rem;
}

.install-text p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.install-actions {
    display: flex;
    gap: 0.5rem;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.toast-header {
    background: var(--primary-color);
    color: white;
    border-bottom: none;
}

.toast-header .btn-close {
    filter: invert(1);
}

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

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

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

.fade-in {
    animation: fadeInUp 0.5s ease;
}

.slide-up {
    animation: slideUp 0.3s ease;
}

.pulse {
    animation: pulse 2s infinite;
}

.spin {
    animation: spin 1s linear infinite;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .clase-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .reserva-actions {
        flex-direction: column;
    }
    
    .install-content {
        flex-direction: column;
        text-align: center;
    }
    
    .install-actions {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .calendar-day {
        min-height: 50px;
        padding: 0.5rem 0.25rem;
        font-size: 0.9rem;
    }
    
    .calendar-day-header {
        padding: 0.5rem 0.25rem;
        font-size: 0.8rem;
    }
}

/* ===== UTILITIES ===== */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

.border-primary { border-color: var(--primary-color) !important; }
.border-secondary { border-color: var(--secondary-color) !important; }
.border-success { border-color: var(--success-color) !important; }
.border-danger { border-color: var(--danger-color) !important; }
.border-warning { border-color: var(--warning-color) !important; }
.border-info { border-color: var(--info-color) !important; }

.shadow-sm { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important; }
.shadow { box-shadow: var(--box-shadow) !important; }
.shadow-lg { box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2) !important; }

.rounded { border-radius: var(--border-radius) !important; }
.rounded-lg { border-radius: calc(var(--border-radius) * 1.5) !important; }

.cursor-pointer { cursor: pointer; }
.user-select-none { user-select: none; }

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --dark-color: #f8f9fa;
        --light-color: #343a40;
    }
    
    body {
        background-color: #1a1a1a;
        color: var(--dark-color);
    }
    
    .card {
        background-color: #2d2d2d;
        color: var(--dark-color);
    }
    
    .navbar {
        background-color: rgba(45, 45, 45, 0.95) !important;
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    .bottom-nav {
        background-color: #2d2d2d;
        border-top-color: rgba(255, 255, 255, 0.1);
    }
    
    .form-control {
        background-color: #2d2d2d;
        border-color: #495057;
        color: var(--dark-color);
    }
    
    .form-control:focus {
        background-color: #2d2d2d;
        color: var(--dark-color);
    }
    
    .modal-content {
        background-color: #2d2d2d;
        color: var(--dark-color);
    }
    
    .install-banner {
        background-color: #2d2d2d;
        border-top-color: rgba(255, 255, 255, 0.1);
    }
}