/* ============================================================
   AI Call Systems — Booking Page Styles
   Clean, professional, mobile responsive. No Tailwind.
   ============================================================ */

:root {
    --primary: #1a56db;
    --primary-hover: #1648b8;
    --primary-light: #e8effc;
    --text: #1f2937;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --success: #059669;
    --success-bg: #ecfdf5;
    --radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background: var(--bg-alt);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ============================================================
   HEADER
   ============================================================ */

.header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    text-align: center;
}

.header-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%);
    color: white;
    padding: 48px 24px 40px;
    text-align: center;
}

.hero h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 16px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 32px 24px 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

/* ============================================================
   INFO PANEL (left side)
   ============================================================ */

.info-panel {
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 32px;
}

.info-panel h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.info-panel p {
    color: var(--text-light);
    margin-bottom: 16px;
    font-size: 15px;
}

.info-meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 24px 0;
    padding: 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
}

.info-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
}

.info-meta-item svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
    flex-shrink: 0;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 16px 0;
}

.info-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    font-size: 15px;
    color: var(--text-light);
}

.info-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

/* ============================================================
   BOOKING FORM (right side)
   ============================================================ */

.booking-panel {
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 32px;
}

.booking-panel h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

/* Calendar */

.calendar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.calendar-nav button {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 12px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
}

.calendar-nav button:hover {
    background: var(--bg-alt);
}

.calendar-nav span {
    font-weight: 600;
    font-size: 15px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: 20px;
}

.calendar-day-header {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-lighter);
    padding: 6px 0;
}

.calendar-day {
    text-align: center;
    padding: 8px 4px;
    border-radius: 6px;
    font-size: 14px;
    cursor: default;
    color: var(--text-lighter);
    border: 1px solid transparent;
}

.calendar-day.available {
    color: var(--text);
    cursor: pointer;
    font-weight: 500;
}

.calendar-day.available:hover {
    background: var(--primary-light);
    border-color: var(--primary);
}

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

.calendar-day.today {
    border-color: var(--primary);
}

/* Time Slots */

.time-slots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 24px;
}

.time-slot {
    padding: 10px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
}

.time-slot:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.time-slot.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-weight: 600;
}

/* Form Fields */

.form-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group label .required {
    color: #ef4444;
    margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Submit Button */

.btn-submit {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    margin-top: 8px;
}

.btn-submit:hover {
    background: var(--primary-hover);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================================
   CONFIRMATION SCREEN
   ============================================================ */

.confirmation {
    text-align: center;
    padding: 48px 32px;
}

.confirmation-icon {
    width: 64px;
    height: 64px;
    background: var(--success-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.confirmation-icon svg {
    width: 32px;
    height: 32px;
    color: var(--success);
}

.confirmation h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.confirmation p {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 8px;
}

.confirmation .details {
    background: var(--bg-alt);
    border-radius: var(--radius);
    padding: 20px;
    margin: 24px 0;
    text-align: left;
}

.confirmation .details p {
    margin: 4px 0;
    font-size: 14px;
}

.confirmation .details strong {
    color: var(--text);
}

/* ============================================================
   LOADING & ERRORS
   ============================================================ */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.error-msg {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 16px;
}

.no-slots {
    text-align: center;
    padding: 20px;
    color: var(--text-lighter);
    font-size: 14px;
}

.hidden { display: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .hero h1 {
        font-size: 24px;
    }

    .hero p {
        font-size: 14px;
    }

    .time-slots {
        grid-template-columns: repeat(2, 1fr);
    }

    .info-panel {
        order: 2;
    }

    .booking-panel {
        order: 1;
    }
}