/* ==========================================================================
   TherapyHub — Design tokens
   Palette: cool sage paper + deep pine ink + warm gold accent
   Type: Fraunces (display) / Inter (body)
   Signature motif: "breathing" — a slow pulse on the brand mark and a
   gentle wave divider, echoing the breathing exercises therapy sessions
   are built around. Disabled under prefers-reduced-motion.
   ========================================================================== */

:root {
    --ink: #16302B;
    --ink-soft: #4B615C;
    --ink-faint: #7C8F8A;

    --bg: #F4F7F5;
    --surface: #FFFFFF;
    --surface-alt: #EEF3F0;

    --primary: #2F6F62;
    --primary-dark: #21534A;
    --primary-soft: #E1ECE8;

    --accent: #E2A33D;
    --accent-dark: #C68521;
    --accent-soft: #FBEFD9;

    --danger: #C2483A;
    --danger-soft: #FBEAE7;

    --border: #DDE6E1;

    --font-display: 'Fraunces', 'Georgia', serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 12px;
    --shadow-card: 0 4px 16px rgba(22, 48, 43, 0.05);
    --shadow-card-hover: 0 14px 34px -12px rgba(22, 48, 43, 0.14);
}

/* Global Reset & Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    background: var(--surface);
    box-shadow: 0 25px 50px -12px rgba(22, 48, 43, 0.1);
}

.container > main {
    max-width: 1160px;
    margin: 0 auto;
    padding: 2.5rem 2rem 4rem;
}

/* ==========================================================================
   Site header / nav
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1160px;
    margin: 0 auto;
    padding: 1.1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--ink);
}

.brand-mark {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 28%, var(--accent), var(--primary) 72%);
    animation: breathe 4s ease-in-out infinite;
}

.brand-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.brand-tagline {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--ink-faint);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ink-soft);
    text-decoration: none;
    padding: 0.5rem 0.9rem;
    border-radius: 40px;
    transition: 0.15s;
}

.nav-link:hover {
    color: var(--primary-dark);
    background: var(--surface-alt);
}

.nav-link.active {
    color: var(--primary-dark);
    background: var(--primary-soft);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.session-badge {
    background: var(--primary-soft);
    padding: 0.5rem 1.1rem;
    border-radius: 60px;
    font-weight: 600;
    color: var(--primary-dark);
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-header-cta {
    padding: 0.65rem 1.4rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    width: 40px;
    height: 40px;
    font-size: 1rem;
    color: var(--ink);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* Breathing wave divider under the header */
.header-wave {
    line-height: 0;
    overflow: hidden;
    background: var(--surface);
}

.header-wave svg {
    width: 100%;
    height: 18px;
    display: block;
    animation: wave-breathe 6s ease-in-out infinite;
}

.header-wave path {
    fill: none;
    stroke: var(--accent);
    stroke-width: 2;
    stroke-linecap: round;
    opacity: 0.55;
}

@keyframes breathe {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(47, 111, 98, 0.28); }
    50% { transform: scale(1.14); box-shadow: 0 0 0 7px rgba(47, 111, 98, 0); }
}

@keyframes wave-breathe {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

@media (prefers-reduced-motion: reduce) {
    .brand-mark, .header-wave svg {
        animation: none !important;
    }
}

/* Messages */
.messages {
    margin-bottom: 1.8rem;
}

.alert {
    padding: 0.9rem 1.5rem;
    border-radius: 60px;
    background: var(--surface-alt);
    border-left: 6px solid var(--primary);
    color: var(--ink);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    border-left-color: var(--primary);
    background: var(--primary-soft);
}

.alert-error, .alert-danger {
    border-left-color: var(--danger);
    background: var(--danger-soft);
}

.alert-warning {
    border-left-color: var(--accent);
    background: var(--accent-soft);
}

/* ==========================================================================
   Hero (booking list page)
   ========================================================================== */

.hero {
    padding: 1rem 0 2.4rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.4rem;
}

.hero-eyebrow {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.7rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--ink);
    margin-bottom: 0.7rem;
    max-width: 20ch;
}

.hero-subtitle {
    color: var(--ink-soft);
    font-size: 1.05rem;
    max-width: 52ch;
    margin-bottom: 1.6rem;
}

.hero-stats {
    display: flex;
    gap: 2.2rem;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hero-stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.hero-stat-label {
    font-size: 0.82rem;
    color: var(--ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

/* ==========================================================================
   Breadcrumb (inner pages)
   ========================================================================== */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--ink-faint);
    margin-bottom: 1.8rem;
}

.breadcrumb a {
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-sep {
    color: var(--ink-faint);
}

.breadcrumb-current {
    color: var(--ink);
    font-weight: 500;
}

/* Grid Layout */
.booking-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2.2rem;
}

@media (max-width: 820px) {
    .booking-grid {
        grid-template-columns: 1fr;
        gap: 1.8rem;
    }
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1.8rem 1.8rem 2.2rem;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-card-hover);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.8rem;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
}

.card-title i {
    color: var(--primary);
    font-size: 1.5rem;
}

.badge-primary {
    background: var(--primary);
    color: white;
    padding: 0.2rem 0.8rem;
    border-radius: 60px;
    font-size: 0.85rem;
    font-family: var(--font-body);
    margin-left: auto;
}

/* Forms */
.form-group {
    margin-bottom: 1.4rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    color: #334155;
}

.form-group label i {
    color: var(--primary);
    margin-right: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-body);
    background: var(--bg);
    transition: 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(47, 111, 98, 0.14);
    background: var(--surface);
}

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

.form-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

.help-text {
    color: var(--ink-faint);
    font-size: 0.8rem;
    margin-top: 0.3rem;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 60px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: 0.2s;
    text-decoration: none;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: scale(1.01);
    box-shadow: 0 8px 18px -6px rgba(47, 111, 98, 0.45);
}

.btn-accent {
    background: var(--accent);
    color: var(--ink);
}

.btn-accent:hover {
    background: #cf9433;
    transform: scale(1.01);
    box-shadow: 0 8px 18px -6px rgba(226, 163, 61, 0.5);
}

.btn-secondary {
    background: var(--surface-alt);
    color: var(--ink);
}

.btn-secondary:hover {
    background: var(--border);
}

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

.btn-danger:hover {
    background: #a53a2e;
    box-shadow: 0 8px 18px -6px rgba(194, 72, 58, 0.45);
}

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

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

.btn-sm {
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
    border-radius: 40px;
    border: none;
    font-weight: 500;
    font-family: var(--font-body);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.btn-sm-primary {
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.btn-sm-primary:hover {
    background: #d3e3dd;
}

.btn-sm-danger {
    background: var(--danger-soft);
    color: var(--danger);
}

.btn-sm-danger:hover {
    background: #f6d5cf;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

/* Booking List */
.booking-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.booking-item {
    background: var(--bg);
    border-radius: 24px;
    padding: 1.2rem 1.5rem;
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    transition: 0.15s;
}

.booking-item:hover {
    background: var(--surface);
    border-color: #c3d4cd;
    box-shadow: var(--shadow-card);
}

.booking-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.booking-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--ink);
}

.booking-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 20px;
    font-size: 0.9rem;
    color: var(--ink-soft);
}

.booking-meta i {
    width: 18px;
    color: var(--primary);
}

.therapy-tag {
    background: var(--primary-soft);
    padding: 0.2rem 0.9rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-dark);
}

.booking-actions {
    display: flex;
    gap: 8px;
    margin-top: 6px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--ink-faint);
}

.empty-state i {
    font-size: 3rem;
    color: var(--border);
    margin-bottom: 0.8rem;
}

/* Delete Confirmation */
.delete-card {
    max-width: 600px;
    margin: 0 auto;
}

.text-danger {
    color: var(--danger);
}

.text-danger i {
    color: var(--danger) !important;
}

.delete-message {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.booking-details {
    background: var(--bg);
    padding: 1rem 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.booking-details p {
    margin: 0.3rem 0;
}

.booking-details i {
    color: var(--primary);
    width: 24px;
}

/* Detail Page */
.detail-card {
    max-width: 700px;
    margin: 0 auto;
}

.detail-info {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.detail-row {
    display: flex;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    width: 140px;
    color: var(--ink-soft);
    flex-shrink: 0;
}

.detail-label i {
    color: var(--primary);
    width: 24px;
}

.detail-value {
    color: var(--ink);
}

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

.footer-wave {
    line-height: 0;
    overflow: hidden;
    margin-top: 3rem;
}

.footer-wave svg {
    width: 100%;
    height: 14px;
    display: block;
}

.footer-wave path {
    fill: none;
    stroke: var(--primary-soft);
    stroke-width: 2;
}

.footer {
    background: var(--surface-alt);
    padding: 2.4rem 2rem;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1160px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--ink);
    font-size: 1.05rem;
}

.footer-security {
    font-size: 0.9rem;
    color: var(--ink-faint);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--ink-faint);
    width: 100%;
    text-align: center;
    margin-top: 1.4rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--border);
}

/* Form Page */
.form-page {
    max-width: 700px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 900px) {
    .main-nav {
        display: none;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .header-actions.nav-open .main-nav {
        display: flex;
    }

    .site-header.nav-open .main-nav {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 0.8rem 2rem 1.2rem;
        gap: 4px;
    }

    .btn-header-cta span {
        display: none;
    }
}

@media (max-width: 640px) {
    .container > main {
        padding: 1.8rem 1.2rem 3rem;
    }

    .header-inner {
        padding: 1rem 1.2rem;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .booking-item {
        flex-direction: column;
        align-items: stretch;
    }

    .booking-actions {
        margin-top: 10px;
    }

    .detail-row {
        flex-direction: column;
    }

    .detail-label {
        width: 100%;
        margin-bottom: 0.2rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}