/* ====================================
   VERTICAL BOOKING SYSTEM - MODERN UI
   ==================================== */

/* ────────── Reset & Base ────────── */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --vb-primary: #1F6306;
    --vb-primary-dark: #164a05;
    --vb-primary-light: #2d8309;
    --vb-secondary: #2563eb;
    --vb-success: #34a853;
    --vb-warning: #fbbc04;
    --vb-error: #ea4335;
    --vb-gray-50: #f9fafb;
    --vb-gray-100: #f3f4f6;
    --vb-gray-200: #e5e7eb;
    --vb-gray-300: #d1d5db;
    --vb-gray-400: #9ca3af;
    --vb-gray-500: #6b7280;
    --vb-gray-600: #4b5563;
    --vb-gray-700: #374151;
    --vb-gray-800: #1f2937;
    --vb-gray-900: #111827;
    --vb-border-radius: 12px;
    --vb-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --vb-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --vb-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --vb-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--vb-gray-800);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ────────── Contenedor Principal ────────── */
.vertical-booking-container {
    width: 100%;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* ────────── Formulario Moderno ────────── */
.vertical-booking-form {
    background: white;
    border-radius: var(--vb-border-radius);
    box-shadow: var(--vb-shadow-lg);
    overflow: hidden;
    transition: var(--vb-transition);
}

.vertical-booking-form:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.form-field {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-field label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--vb-gray-700);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    transition: var(--vb-transition);
}

.form-field label .material-icons {
    font-size: 1.125rem;
    color: var(--vb-primary);
}

.required {
    color: var(--vb-error);
    margin-left: 0.25rem;
}

/* ────────── Inputs, Selects y Textareas ────────── */
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--vb-gray-200);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: white;
    color: var(--vb-gray-800);
    transition: var(--vb-transition);
    outline: none;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--vb-primary);
    box-shadow: 0 0 0 3px rgba(31, 99, 6, 0.1);
    transform: translateY(-1px);
}

.form-field input:hover:not(:focus),
.form-field select:hover:not(:focus),
.form-field textarea:hover:not(:focus) {
    border-color: var(--vb-gray-300);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--vb-gray-400);
}

.form-field textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
}

.form-field select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234b5563'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

.form-field input:disabled,
.form-field select:disabled,
.form-field textarea:disabled {
    background: var(--vb-gray-50);
    color: var(--vb-gray-500);
    cursor: not-allowed;
    opacity: 0.7;
}

/* ────────── Mensajes de Error ────────── */
.error-message {
    color: var(--vb-error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    opacity: 0;
    transform: translateY(-5px);
    transition: var(--vb-transition);
}

.error-message.visible {
    opacity: 1;
    transform: translateY(0);
}

.form-field.error input,
.form-field.error select,
.form-field.error textarea {
    border-color: var(--vb-error);
    background: #fef2f2;
}

.form-field.error label {
    color: var(--vb-error);
}

/* ────────── Botones ────────── */
button, .submit-btn {
    cursor: pointer;
    padding: 1rem 2rem;
    background: var(--vb-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--vb-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: var(--vb-shadow);
    position: relative;
    overflow: hidden;
}

button::before,
.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:hover::before,
.submit-btn:hover::before {
    width: 300px;
    height: 300px;
}

button:hover, .submit-btn:hover {
    background: var(--vb-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -5px rgba(31, 99, 6, 0.4);
}

button:active,
.submit-btn:active {
    transform: translateY(0);
}

button:disabled,
.submit-btn:disabled {
    background: var(--vb-gray-300);
    color: var(--vb-gray-500);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

button .material-icons,
.submit-btn .material-icons {
    font-size: 1.25rem;
    position: relative;
    z-index: 1;
}

/* ────────── Sección de Calendario ────────── */
.vb-calendar-section {
    margin-top: 2rem;
    background: white;
    border-radius: var(--vb-border-radius);
    box-shadow: var(--vb-shadow-lg);
    overflow: hidden;
    transition: var(--vb-transition);
}

.vb-calendar-section:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.vb-calendar-header {
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--vb-primary) 0%, var(--vb-primary-dark) 100%);
    padding: 1.5rem;
    text-align: center;
    color: white;
}

.vb-calendar-header h2,
.vb-calendar-header h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0;
    font-weight: 600;
}

.vb-calendar-header p {
    margin: 0.5rem 0 0 0;
    opacity: 0.9;
    font-size: 0.875rem;
}

/* ────────── Datepicker Mejorado ────────── */
.ui-datepicker {
    background: white;
    border: none;
    border-radius: var(--vb-border-radius);
    box-shadow: var(--vb-shadow-lg);
    padding: 1rem;
    font-family: inherit;
    width: 300px;
    z-index: 9999 !important;
}

.ui-datepicker-header {
    background: var(--vb-primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    position: relative;
}

.ui-datepicker-title {
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
}

.ui-datepicker-prev,
.ui-datepicker-next {
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--vb-transition);
}

.ui-datepicker-prev {
    left: 0.5rem;
}

.ui-datepicker-next {
    right: 0.5rem;
}

.ui-datepicker-prev:hover,
.ui-datepicker-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

.ui-datepicker-prev span,
.ui-datepicker-next span {
    display: block;
    text-indent: -9999px;
    position: relative;
}

.ui-datepicker-prev span::after {
    content: '‹';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-indent: 0;
    font-size: 1.5rem;
    color: white;
}

.ui-datepicker-next span::after {
    content: '›';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-indent: 0;
    font-size: 1.5rem;
    color: white;
}

.ui-datepicker-calendar {
    width: 100%;
    border-collapse: separate;
    border-spacing: 4px;
}

.ui-datepicker-calendar thead th {
    color: var(--vb-gray-600);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 0.5rem;
}

.ui-datepicker-calendar tbody td {
    padding: 0;
    text-align: center;
}

.ui-datepicker-calendar tbody td a,
.ui-datepicker-calendar tbody td span {
    display: block;
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border-radius: 50%;
    text-decoration: none;
    color: var(--vb-gray-800);
    font-weight: 500;
    transition: var(--vb-transition);
    border: 2px solid transparent;
}

.ui-datepicker-calendar tbody td a:hover {
    background: var(--vb-gray-100);
    transform: scale(1.1);
}

.ui-datepicker-calendar tbody td.ui-datepicker-today a {
    background: var(--vb-primary);
    color: white;
    font-weight: 600;
}

.ui-datepicker-calendar tbody td.ui-datepicker-current-day a {
    background: var(--vb-primary-dark);
    color: white;
    border-color: var(--vb-primary);
}

.ui-datepicker-calendar tbody td.ui-datepicker-available a {
    background: #e8f5e8;
    color: var(--vb-success);
    border-color: var(--vb-success);
}

.ui-datepicker-calendar tbody td.ui-datepicker-unavailable span {
    background: #fce8e6;
    color: var(--vb-error);
    cursor: not-allowed;
    opacity: 0.6;
}

.ui-datepicker-calendar tbody td.ui-state-disabled span {
    background: var(--vb-gray-100);
    color: var(--vb-gray-400);
    cursor: not-allowed;
}

/* Animación de entrada del datepicker */
@keyframes datepickerSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.ui-datepicker {
    animation: datepickerSlideIn 0.2s ease-out;
}

/* ────────── Responsive ────────── */
@media (min-width: 768px) {
    .vertical-booking-container {
        padding: 0 2rem;
    }
    
    .vertical-booking-container.horizontal-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        align-items: start;
    }
    
    .horizontal-layout .vertical-booking-form,
    .horizontal-layout .vb-calendar-section {
        margin: 0;
    }
}

@media (min-width: 1024px) {
    .vertical-booking-container.horizontal-layout {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

/* ────────── Time Slot Selector ────────── */
.time-slot {
    position: relative;
}

.time-slot option:disabled {
    color: var(--vb-gray-400);
    background: var(--vb-gray-50);
}

/* ────────── Loading State ────────── */
.form-field.loading::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--vb-gray-200);
    border-top-color: var(--vb-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ────────── Form Submit Section ────────── */
.form-submit {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--vb-gray-50);
    border-radius: 0 0 var(--vb-border-radius) var(--vb-border-radius);
}

.submit-btn {
    width: 100%;
}

.form-status {
    padding: 1rem;
    border-radius: 8px;
    display: none;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-status.visible {
    display: flex;
}

.form-status.success {
    background: #e8f5e8;
    color: var(--vb-success);
    border: 1px solid var(--vb-success);
}

.form-status.error {
    background: #fce8e6;
    color: var(--vb-error);
    border: 1px solid var(--vb-error);
}

.form-status .material-icons {
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ────────── Modales ────────── */
.calendar-modal,
.success-modal {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { 
        opacity: 0;
    }
    to { 
        opacity: 1;
    }
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--vb-border-radius);
    width: calc(100% - 2rem);
    max-width: 400px;
    box-shadow: var(--vb-shadow-lg);
    position: relative;
    animation: modalSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
    from { 
        transform: translateY(30px) scale(0.95);
        opacity: 0;
    }
    to { 
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.calendar-modal-content {
    max-width: 350px;
}

.success-modal .modal-content {
    text-align: center;
}

.success-modal .success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #34a853 0%, #2d8f47 100%);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: successBounce 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

.success-modal .success-icon .material-icons {
    font-size: 3rem;
    color: white;
}

.success-modal h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--vb-gray-900);
    margin-bottom: 1rem;
}

.success-modal .success-message {
    font-size: 1rem;
    color: var(--vb-gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.modal-button {
    background: var(--vb-primary);
    color: white;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--vb-transition);
    box-shadow: var(--vb-shadow);
}

.modal-button:hover {
    background: var(--vb-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(31, 99, 6, 0.3);
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: var(--vb-gray-400);
    transition: var(--vb-transition);
    background: var(--vb-gray-100);
    border: none;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close:hover {
    color: var(--vb-gray-800);
    background: var(--vb-gray-200);
    transform: rotate(90deg);
}



/* ────────── Media Queries - Responsive Design ────────── */

/* Tablets y pantallas medianas */
@media (max-width: 1024px) {
    .vertical-booking-container {
        max-width: 100%;
        padding: 0 1.5rem;
    }
}

/* Tablets pequeñas */
@media (max-width: 768px) {
    .vertical-booking-container {
        margin: 1rem auto;
        padding: 0 1rem;
    }
    
    .horizontal-layout {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
    }
    
    .vb-calendar-section {
        margin-top: 1.5rem;
    }
    
    .form-field {
        margin-bottom: 1.25rem;
    }
    
    .form-submit {
        padding: 1.25rem;
    }
    
    .submit-btn {
        width: 100%;
        padding: 1rem 1.5rem;
    }
    
    /* Datepicker responsive */
    .ui-datepicker {
        width: 280px;
        padding: 0.75rem;
    }
    
    .ui-datepicker-calendar tbody td a,
    .ui-datepicker-calendar tbody td span {
        width: 32px;
        height: 32px;
        line-height: 32px;
    }
}

/* Móviles */
@media (max-width: 480px) {
    .vertical-booking-container {
        margin: 0.5rem auto;
        padding: 0 0.75rem;
    }
    
    .vertical-booking-form,
    .vb-calendar-section {
        border-radius: 8px;
    }
    
    .vb-calendar-header {
        padding: 1rem;
    }
    
    .vb-calendar-header h2,
    .vb-calendar-header h3 {
        font-size: 1.25rem;
    }
    
    .form-field input,
    .form-field select,
    .form-field textarea {
        font-size: 16px; /* Previene zoom en iOS */
        padding: 0.75rem;
    }
    
    .form-field label {
        font-size: 0.875rem;
    }
    
    .form-submit {
        padding: 1rem;
    }
    
    .submit-btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    /* Modal responsive */
    .modal-content {
        width: calc(100% - 1.5rem);
        padding: 1.5rem;
    }
    
    .success-modal .success-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .success-modal .success-icon .material-icons {
        font-size: 2rem;
    }
    
    .success-modal h2 {
        font-size: 1.25rem;
    }
    
    /* Datepicker móvil */
    .ui-datepicker {
        width: 260px;
        padding: 0.5rem;
    }
    
    .ui-datepicker-header {
        padding: 0.75rem;
    }
    
    .ui-datepicker-calendar tbody td a,
    .ui-datepicker-calendar tbody td span {
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 0.875rem;
    }
}

/* Altura reducida */
@media (max-height: 700px) {
    .vertical-booking-container {
        margin: 0.5rem auto;
    }
    
    .vertical-booking-form {
        max-height: 85vh;
        overflow-y: auto;
    }
    
    .form-field {
        margin-bottom: 1rem;
    }
    
    .form-field textarea {
        min-height: 80px;
    }
}

/* Altura muy reducida */
@media (max-height: 550px) {
    .vertical-booking-form {
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .vb-calendar-header {
        padding: 0.75rem;
    }
    
    .form-field {
        margin-bottom: 0.75rem;
    }
    
    .form-submit {
        padding: 0.75rem;
    }
}

/* Landscape móvil */
@media (max-width: 768px) and (orientation: landscape) {
    .vertical-booking-form {
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .vb-calendar-header {
        padding: 0.75rem 1rem;
    }
    
    .form-field {
        margin-bottom: 0.875rem;
    }
}

/* Pantallas grandes */
@media (min-width: 1200px) {
    .vertical-booking-container {
        max-width: 1200px;
    }
    
    .form-field input,
    .form-field select,
    .form-field textarea {
        font-size: 1rem;
    }
}

/* Ultra wide */
@media (min-width: 1600px) {
    .vertical-booking-container {
        max-width: 1400px;
    }
}

/* Touch devices - aumentar área de toque */
@media (hover: none) and (pointer: coarse) {
    button,
    .submit-btn,
    .modal-button {
        min-height: 48px;
        padding: 1rem 1.5rem;
    }
    
    .form-field input,
    .form-field select,
    .form-field textarea {
        min-height: 48px;
    }
    
    .close {
        width: 44px;
        height: 44px;
    }
}