/**
 * Reservas Kalos MK — Frontend Styles
 * Designed with Kalos MK identity: human-first, minimal, cinematic
 *
 * Philosophy: "Somos humanos, no robots"
 * Color scheme: Acid (vibrant) + Dark backgrounds
 * Spacing: Generous, breathing
 */

/* ====================================================================
   CSS Custom Properties (siguiendo Kalos MK)
   ==================================================================== */

:root {
    --wpnb-acid: #f0ff00;           /* Vibrant, attention-grabbing */
    --wpnb-dark: #101013;           /* Almost black */
    --wpnb-gray: #4a4a4e;           /* Secondary */
    --wpnb-line: #2a2a2e;           /* Borders */
    --wpnb-bg: #1a1a1f;             /* Slightly lighter than dark */
    --wpnb-white: #ffffff;          /* Text & contrast */
    --wpnb-radius: 100px;           /* Pill buttons (Kalos style) */
    --wpnb-radius-soft: 12px;       /* Mild corners */
    --wpnb-ease: cubic-bezier(0.4, 0.0, 0.2, 1); /* Material motion */
    --wpnb-transition: 0.3s var(--wpnb-ease);
    --wpnb-font-mono: 'Monaco', 'Courier New', monospace; /* Technical details */
}

/* Allow theme override */
@supports (--acid: var(--acid)) {
    :root {
        --wpnb-acid: var(--acid, #f0ff00);
    }
}

/* ====================================================================
   Base Styles
   ==================================================================== */

.wpnb-container {
    max-width: 680px;
    margin: 2rem auto;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--wpnb-white);
    background: #09090f;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

/* ====================================================================
   Header & Branding
   ==================================================================== */

.wpnb-header {
    padding: 2rem 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
}

.wpnb-branding {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    text-align: left;
}

.wpnb-brand-icon {
    font-size: 1.8rem;
    line-height: 1;
}

.wpnb-brand-text {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--wpnb-white);
}

.wpnb-brand-tagline {
    display: block;
    font-size: 0.75rem;
    font-family: var(--wpnb-font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--wpnb-acid);
    font-weight: 600;
    margin-top: 0.3rem;
}

.wpnb-page-head {
    margin-top: 1.5rem;
}

.wpnb-page-title {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.05;
    color: var(--wpnb-white);
}

.wpnb-page-subtitle,
.wpnb-subtitle {
    margin: 0.75rem 0 0;
    color: var(--wpnb-gray);
    max-width: 38rem;
    line-height: 1.6;
}

/* ====================================================================
   Main Content Area
   ==================================================================== */

.wpnb-content {
    padding: 1.75rem 1.5rem 2rem;
    min-height: 200px;
    background: transparent;
}

.wpnb-section {
    animation: fadeInUp 0.45s var(--wpnb-ease);
}

.wpnb-section h2,
.wpnb-section h3 {
    margin: 0 0 0.6rem 0;
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--wpnb-white);
}

.wpnb-section h3 {
    font-size: 1.2rem;
}

.wpnb-subtitle {
    margin: 0 0 1.5rem 0;
    font-size: 0.95rem;
    color: var(--wpnb-gray);
    line-height: 1.5;
}

/* ====================================================================
   Date Picker Section
   ==================================================================== */

.wpnb-date-picker-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    align-items: stretch;
    margin-top: 1.5rem;
}

.wpnb-date-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.wpnb-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--wpnb-gray);
    margin-bottom: 0.3rem;
}

.wpnb-required {
    color: var(--wpnb-acid);
    margin-left: 0.2rem;
}

.wpnb-date-input,
.wpnb-input {
    padding: 0.85rem 1rem;
    border: 1px solid var(--wpnb-line);
    border-radius: 8px;
    background: rgba(74, 74, 78, 0.3);
    color: var(--wpnb-white);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--wpnb-transition), background var(--wpnb-transition);
}

.wpnb-date-input:focus,
.wpnb-input:focus {
    outline: none;
    border-color: var(--wpnb-acid);
    background: rgba(240, 255, 0, 0.08);
    box-shadow: 0 0 0 3px rgba(240, 255, 0, 0.1);
}

.wpnb-date-input::placeholder,
.wpnb-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* Date input calendar icon color */
.wpnb-date-input::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(0.9);
    cursor: pointer;
}

.wpnb-date-info {
    text-align: center;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    min-width: 120px;
}

.wpnb-day-name {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: #ffd500;
    font-family: var(--wpnb-font-mono);
}

.wpnb-month-calendar {
    margin: 1rem auto 0;
    width: 100%;
    max-width: 560px;
    /* min-width: 320px causaba corte a la derecha en teléfonos ≤320px
       (320 + padding = 352 > viewport). Se deja fluido con box-sizing. */
    min-width: 0;
    box-sizing: border-box;
    padding: 1rem;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.06));
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.wpnb-month-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.wpnb-month-label {
    text-align: center;
    font-size: 1rem;
    font-weight: 700;
    color: var(--wpnb-white);
}

.wpnb-month-nav {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--wpnb-white);
    cursor: pointer;
    transition: all var(--wpnb-transition);
}

.wpnb-month-nav:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 213, 0, 0.9);
}

.wpnb-month-grid-weekdays,
.wpnb-month-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.5rem;
    width: 100%;
}

.wpnb-month-grid-weekdays span {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
    text-align: center;
}

.wpnb-month-day {
    position: relative;
    min-height: 72px;
    aspect-ratio: 1 / 1;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--wpnb-white);
    padding: 0.85rem 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--wpnb-transition);
}

.wpnb-month-day:hover {
    border-color: rgba(255, 213, 0, 0.7);
    background: rgba(255, 255, 255, 0.1);
}

.wpnb-month-day-empty {
    background: transparent;
    border: none;
    cursor: default;
}

.wpnb-month-day-number {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.wpnb-month-day-indicator {
    display: block;
    width: 8px;
    height: 8px;
    margin: 0 auto;
    border-radius: 50%;
    background: #ffd500;
}

.wpnb-month-day.available {
    border-color: rgba(255, 213, 0, 0.6);
}

.wpnb-month-day.unavailable {
    opacity: 0.35;
    cursor: not-allowed;
    background: transparent;
}

.wpnb-month-day.selected {
    border-color: #ffd500;
    background: #ffd500;
    color: #09090f;
}

.wpnb-month-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--wpnb-gray);
    font-size: 0.95rem;
}

/* ====================================================================
   Time Slots Section
   ==================================================================== */

.wpnb-section-times {
    margin-top: 2rem;
}

.wpnb-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
    color: var(--wpnb-gray);
    font-size: 0.95rem;
}

.wpnb-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--wpnb-line);
    border-top-color: var(--wpnb-acid);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.wpnb-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.8rem;
    margin: 1.5rem 0;
}

.wpnb-slot {
    padding: 0.9rem 0.6rem;
    border: 1px solid var(--wpnb-line);
    border-radius: 8px;
    background: transparent;
    color: var(--wpnb-gray);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--wpnb-transition);
}

.wpnb-slot:hover {
    border-color: var(--wpnb-acid);
    color: var(--wpnb-acid);
    background: rgba(240, 255, 0, 0.08);
    transform: translateY(-2px);
}

.wpnb-slot.selected {
    border-color: var(--wpnb-acid);
    background: var(--wpnb-acid);
    color: var(--wpnb-dark);
    font-weight: 700;
}

.wpnb-no-slots {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--wpnb-gray);
    background: rgba(74, 74, 78, 0.2);
    border-radius: 8px;
}

/* ====================================================================
   Booking Form Section
   ==================================================================== */

.wpnb-section-form {
    margin-top: 2rem;
}

.wpnb-form {
    margin-top: 1.5rem;
}

.wpnb-form-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1.1rem;
    margin-bottom: 1.5rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
}

.wpnb-summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.wpnb-summary-item label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--wpnb-gray);
    font-weight: 600;
}

.wpnb-summary-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--wpnb-acid);
    font-family: var(--wpnb-font-mono);
}

.wpnb-form-group {
    margin-bottom: 1.3rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.wpnb-input {
    width: 100%;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--wpnb-white);
}

.wpnb-input::placeholder {
    color: rgba(255, 255, 255, 0.45);
}

.wpnb-form-disclaimer {
    margin-top: 1.2rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    text-align: center;
}

/* ====================================================================
   Buttons (Kalos MK Pill Style)
   ==================================================================== */

.wpnb-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--wpnb-radius);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: all var(--wpnb-transition);
    font-family: var(--wpnb-font-mono);
    width: 100%;
    min-height: 44px;
    overflow: hidden;
}

.wpnb-btn-primary {
    background: var(--wpnb-acid);
    color: var(--wpnb-dark);
    border-color: var(--wpnb-acid);
}

.wpnb-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(255, 213, 0, 0.35);
}

.wpnb-btn-primary:active {
    transform: translateY(0);
}

.wpnb-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.wpnb-btn-secondary {
    background: transparent;
    color: var(--wpnb-acid);
    border: 2px solid var(--wpnb-acid);
}

.wpnb-btn-secondary:hover {
    background: rgba(240, 255, 0, 0.1);
    transform: translateY(-2px);
}

.wpnb-btn-icon {
    display: inline-block;
    font-size: 1.2rem;
    transition: transform var(--wpnb-transition);
}

.wpnb-btn-primary:hover .wpnb-btn-icon {
    transform: translateX(3px);
}

/* ====================================================================
   Success Message
   ==================================================================== */

.wpnb-section-success {
    text-align: center;
}

.wpnb-success-message {
    padding: 2rem;
    background: rgba(240, 255, 0, 0.08);
    border: 1px solid var(--wpnb-acid);
    border-radius: 8px;
}

.wpnb-success-icon {
    display: block;
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: popIn 0.5s var(--wpnb-ease);
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    75% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.wpnb-section-success h3 {
    color: var(--wpnb-acid);
    margin-bottom: 0.5rem;
}

.wpnb-section-success p {
    margin-bottom: 1.5rem;
    color: var(--wpnb-gray);
}

/* ====================================================================
   Alert Messages
   ==================================================================== */

.wpnb-alert {
    display: none;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--wpnb-line);
    border-radius: 8px;
    background: rgba(255, 0, 0, 0.05);
    color: #ff4444;
    font-size: 0.95rem;
    animation: slideDown 0.3s var(--wpnb-ease);
}

.wpnb-alert-error {
    border-color: #ff4444;
}

.wpnb-alert-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.wpnb-alert-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    transition: transform var(--wpnb-transition);
}

.wpnb-alert-close:hover {
    transform: scale(1.2);
}

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

/* ====================================================================
   Footer
   ==================================================================== */

.wpnb-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--wpnb-line);
    background: rgba(0, 0, 0, 0.3);
    text-align: center;
}

.wpnb-footer-text {
    margin: 0;
    font-size: 0.78rem;
    color: var(--wpnb-gray);
}

.wpnb-power {
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.wpnb-footer-brand {
    display: inline-block;
    margin-left: 0.5rem;
    font-weight: 700;
    color: var(--wpnb-acid);
    font-family: var(--wpnb-font-mono);
}

/* ====================================================================
   Animations
   ==================================================================== */

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

/* ====================================================================
   Responsive Design
   ==================================================================== */

@media (max-width: 600px) {
    .wpnb-container {
        margin: 1rem 0;
        border-radius: 0;
        box-shadow: none;
        border: none;
        border-top: 1px solid var(--wpnb-line);
        border-bottom: 1px solid var(--wpnb-line);
    }

    .wpnb-header,
    .wpnb-content,
    .wpnb-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .wpnb-date-picker-wrapper {
        grid-template-columns: 1fr;
    }

    .wpnb-date-info {
        min-width: auto;
    }

    .wpnb-slots {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .wpnb-form-summary {
        grid-template-columns: 1fr;
    }

    .wpnb-btn {
        width: 100%;
    }

    .wpnb-section h2 {
        font-size: 1.3rem;
    }

    .wpnb-section h3 {
        font-size: 1.1rem;
    }
}

/* ====================================================================
   Dark Mode (respects system preference)
   ==================================================================== */


/* ====================================================================
   Print Styles
   ==================================================================== */

@media print {
    .wpnb-container {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .wpnb-btn,
    .wpnb-alert-close {
        display: none;
    }
}