/**
 * CALENDARIO MODERNO - BOOTSTRAP 5
 * Diseño limpio, intuitivo y responsive para agendar citas
 */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-gray: #f8f9fa;
    --medium-gray: #dee2e6;
    --dark-gray: #495057;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.calendar-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Header Card */
.header-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.header-card .logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 1.5rem;
    border-radius: 10px;
}

.header-card h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.header-card .subtitle {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 500;
}

.header-card .duration-badge {
    display: inline-block;
    background: var(--light-gray);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-top: 1rem;
    font-weight: 500;
}

/* Schedule Table */
.schedule-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.schedule-card h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
    font-weight: 700;
}

.schedule-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.schedule-table th {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    font-weight: 600;
    text-align: center;
}

.schedule-table th:first-child {
    border-radius: 10px 0 0 0;
}

.schedule-table th:last-child {
    border-radius: 0 10px 0 0;
}

.schedule-table td {
    padding: 0.75rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--light-gray);
}

.schedule-table tr:last-child td {
    border-bottom: none;
}

.schedule-table tbody tr:hover {
    background: var(--light-gray);
}

/* Calendar Section */
.calendar-section {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

.calendar-header {
    text-align: center;
    margin-bottom: 2rem;
}

.calendar-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.calendar-header .instructions {
    background: var(--info-color);
    color: white;
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.calendar-header .instructions i {
    margin-right: 0.5rem;
}

/* Month Navigation */
.month-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 15px;
}

.month-navigation .month-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: capitalize;
}

.month-navigation .nav-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.month-navigation .nav-btn:hover {
    background: #0b5ed7;
    transform: scale(1.1);
}

.month-navigation .nav-btn:disabled {
    background: var(--medium-gray);
    cursor: not-allowed;
    transform: scale(1);
}

/* Calendar Grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-bottom: 2rem;
    overflow: visible;
    width: 100%;
}

.calendar-day-header {
    text-align: center;
    padding: 1rem 0;
    font-weight: 700;
    color: var(--primary-color);
    background: var(--light-gray);
    border-radius: 10px;
    font-size: 0.9rem;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex !important;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
    min-height: 45px;
    width: 100%;
    line-height: 1.2;
    text-align: center;
    overflow: visible;
    box-sizing: border-box;
    padding: 0.5rem;
    visibility: visible !important;
    opacity: 1;
}

.calendar-day.empty {
    cursor: default;
    opacity: 0.3;
    visibility: visible !important;
}

.calendar-day.disabled {
    background: var(--light-gray);
    color: var(--medium-gray);
    cursor: not-allowed;
}

.calendar-day.past {
    background: #f8f9fa;
    color: #adb5bd;
    text-decoration: line-through;
    cursor: not-allowed;
    opacity: 0.5;
}

.calendar-day.past:hover {
    transform: none;
    background: #f8f9fa;
    color: #adb5bd;
}

.calendar-day.available {
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    will-change: transform;
}

.calendar-day.available:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.calendar-day.available:active {
    transform: scale(0.98);
}

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

.calendar-day.today {
    border: 2px solid var(--warning-color);
}

/* Hours Section */
.hours-section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.hours-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hours-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.hours-header h3 {
    color: var(--dark-gray);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hours-header .selected-date {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.hours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
    margin-bottom: 2rem;
}

.hour-btn {
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 1rem;
    border-radius: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hour-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.hour-btn.selected {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.hour-btn i {
    margin-right: 0.5rem;
}

/* Form Section */
.form-section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.form-section.active {
    display: block;
}

.form-card {
    background: var(--light-gray);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
}

.form-card h4 {
    color: var(--dark-gray);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group label i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.form-control {
    border-radius: 10px;
    border: 2px solid var(--medium-gray);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-select {
    border-radius: 10px;
    border: 2px solid var(--medium-gray);
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

/* Buttons */
.btn-modern {
    padding: 1rem 2rem;
    border-radius: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary-modern {
    background: var(--primary-color);
    color: white;
}

.btn-primary-modern:hover {
    background: #0b5ed7;
}

.btn-success-modern {
    background: var(--success-color);
    color: white;
}

.btn-success-modern:hover {
    background: #157347;
}

.btn-back {
    background: var(--medium-gray);
    color: var(--dark-gray);
}

.btn-back:hover {
    background: #adb5bd;
}

/* Summary Card */
.summary-card {
    background: linear-gradient(135deg, var(--primary-color), #0b5ed7);
    color: white;
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card h4 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.summary-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.summary-item i {
    margin-right: 1rem;
    font-size: 1.3rem;
}

/* Responsive */
@media (max-width: 992px) {
    .header-card {
        padding: 1.5rem;
    }
    
    .schedule-card {
        padding: 1.5rem;
    }
    
    .calendar-section {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    body {
        background: white;
    }
    
    .calendar-container {
        padding: 0;
        margin: 0;
    }

    .header-card {
        border-radius: 0 0 20px 20px;
        padding: 1.5rem 1rem;
        margin-bottom: 1rem;
    }

    .header-card h1 {
        font-size: 1.3rem;
    }
    
    .header-card .subtitle {
        font-size: 1rem;
    }
    
    .header-card .logo {
        max-width: 150px;
        margin-bottom: 1rem;
    }

    .schedule-card {
        border-radius: 15px;
        padding: 1rem;
        margin: 0 0.5rem 1rem;
    }
    
    .schedule-card h3 {
        font-size: 1.2rem;
    }
    
    .schedule-table {
        font-size: 0.85rem;
    }
    
    .schedule-table th,
    .schedule-table td {
        padding: 0.5rem;
    }

    .calendar-section {
        border-radius: 15px;
        padding: 1rem;
        margin: 0 0.5rem 1rem;
    }
    
    .calendar-header h2 {
        font-size: 1.3rem;
    }
    
    .calendar-header .instructions {
        font-size: 0.85rem;
        padding: 0.75rem;
    }

    .calendar-grid {
        gap: 5px;
    }
    
    .calendar-day-header {
        padding: 0.5rem 0;
        font-size: 0.75rem;
    }

    .calendar-day {
        font-size: 1rem;
        border-radius: 10px;
        min-height: 40px;
        min-width: 40px;
    }

    .hours-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .hour-btn {
        padding: 0.75rem;
        font-size: 1rem;
    }

    .month-navigation {
        padding: 0.75rem;
        margin-bottom: 1rem;
    }

    .month-navigation .month-name {
        font-size: 1.1rem;
    }

    .month-navigation .nav-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .step-indicator {
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .step-circle {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .step-line {
        width: 30px;
    }
    
    .form-card {
        padding: 1rem;
    }
    
    .summary-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .summary-item {
        font-size: 0.95rem;
    }
    
    .btn-modern {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .header-card h1 {
        font-size: 1.1rem;
    }
    
    .header-card .subtitle {
        font-size: 0.9rem;
    }
    
    .calendar-section {
        padding: 0.75rem;
        overflow: visible !important;
    }
    
    .calendar-grid {
        gap: 4px;
        padding: 0;
        overflow: visible !important;
        display: grid !important;
    }
    
    .calendar-day {
        font-size: 1.1rem !important;
        font-weight: 700 !important;
        min-height: 42px !important;
        min-width: 42px !important;
        padding: 0.5rem !important;
        border-width: 2px !important;
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .calendar-day.empty {
        opacity: 0.3 !important;
    }
    
    .calendar-day-header {
        font-size: 0.75rem;
        padding: 0.5rem 0;
        min-height: 32px;
        display: flex !important;
        visibility: visible !important;
    }
    
    .hours-grid {
        grid-template-columns: 1fr;
    }
    
    .step span {
        display: none !important;
    }
    
    .btn-modern {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* Extra small devices (320px and down) */
@media (max-width: 360px) {
    .calendar-grid {
        gap: 3px;
    }
    
    .calendar-day {
        font-size: 0.85rem;
        min-height: 32px;
        min-width: 32px;
    }
    
    .calendar-day-header {
        font-size: 0.65rem;
    }
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Alert Messages */
.alert-modern {
    border-radius: 15px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-modern i {
    font-size: 1.5rem;
}

/* Step Indicator */
.step-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--medium-gray);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step.active .step-circle {
    background: var(--primary-color);
}

.step.completed .step-circle {
    background: var(--success-color);
}

.step-line {
    width: 50px;
    height: 3px;
    background: var(--medium-gray);
}

.step.completed + .step .step-line {
    background: var(--success-color);
}

/* iOS / Safari Specific Fixes */
@supports (-webkit-touch-callout: none) {
    /* This targets iOS Safari specifically */
    body {
        min-height: -webkit-fill-available;
    }
    
    .calendar-grid {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
    
    .calendar-day {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
}

/* iPhone 16 Pro Max and similar large displays */
@media only screen 
    and (min-device-width: 430px) 
    and (max-device-width: 932px) 
    and (-webkit-min-device-pixel-ratio: 3) {
    
    .calendar-container {
        padding: 0 1rem;
        max-width: 100%;
    }
    
    .calendar-grid {
        width: 100% !important;
        display: grid !important;
        grid-template-columns: repeat(7, 1fr) !important;
        gap: 8px !important;
    }
    
    .calendar-day {
        font-size: 1.2rem !important;
        min-height: 50px !important;
        min-width: 50px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .calendar-day-header {
        font-size: 0.85rem !important;
        min-height: 35px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
}

/* Force rendering for all mobile Safari */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    .calendar-grid {
        -webkit-overflow-scrolling: touch;
    }
    
    .calendar-day {
        will-change: transform;
    }
}