@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
    --black: #0a0a0a;
    --white: #fafafa;
    --gray-50: #f7f7f7;
    --gray-100: #e8e8e8;
    --gray-200: #d4d4d4;
    --gray-300: #a3a3a3;
    --gray-400: #737373;
    --gray-500: #525252;
    --gray-600: #404040;
    --gray-700: #2a2a2a;
    --gray-800: #1a1a1a;
    --accent: #003f91;
    --accent-light: #0052bd;
    --accent-bg: #e8f0fe;
    --danger: #ef4444;
    --success: #22c55e;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);
    --shadow: 0 2px 8px rgba(0, 0, 0, .08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, .12);
    --font: 'DM Sans', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace
}

html {
    font-size: 15px
}

body {
    font-family: var(--font);
    background: var(--gray-50);
    color: var(--black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh
}

a {
    color: inherit;
    text-decoration: none
}

img {
    max-width: 100%;
    display: block
}

h1, h2, h3 {
    letter-spacing: -.03em;
    font-weight: 600;
    line-height: 1.2
}

h1 {
    font-size: 2rem
}

h2 {
    font-size: 1.5rem
}

h3 {
    font-size: 1.1rem
}

.text-muted {
    color: var(--gray-400)
}

.text-sm {
    font-size: .85rem
}

.text-mono {
    font-family: var(--mono);
    font-size: .85rem
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px
}

.container-sm {
    max-width: 560px;
    margin: 0 auto;
    padding: 0 24px
}

.nav {
    background: var(--white);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--gray-100)
}

.nav-brand {
    color: var(--black);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -.03em;
    display: flex;
    align-items: center;
    gap: 8px
}

.nav-brand span {
    color: var(--black)
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px
}

.nav-links a {
    color: var(--gray-400);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: .88rem;
    font-weight: 500;
    transition: all .15s
}

.nav-links a:hover, .nav-links a.active {
    color: var(--black);
    background: var(--gray-50)
}

.nav-user {
    color: var(--gray-400);
    font-size: .85rem;
    display: flex;
    align-items: center;
    gap: 12px
}

.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    padding: 28px;
    transition: box-shadow .2s
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all .15s;
    text-decoration: none;
    line-height: 1
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow)
}

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

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-1px)
}

.btn-outline {
    background: transparent;
    color: var(--black);
    border: 1.5px solid var(--gray-200)
}

.btn-outline:hover {
    border-color: var(--black)
}

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

.btn-danger:hover {
    opacity: .9
}

.btn-sm {
    padding: 7px 14px;
    font-size: .82rem
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--gray-200);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all .15s
}

.btn-icon:hover {
    border-color: var(--black)
}

.form-group {
    margin-bottom: 20px
}

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -.01em
}

.form-group small {
    display: block;
    color: var(--gray-400);
    font-size: .78rem;
    margin-top: 4px
}

input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="url"], input[type="time"], input[type="tel"], textarea, select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .92rem;
    background: var(--white);
    transition: border-color .15s;
    outline: none;
    color: var(--black)
}

input:focus, textarea:focus, select:focus {
    border-color: var(--black)
}

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

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .02em
}

.badge-active {
    background: #dcfce7;
    color: #166534
}

.badge-inactive {
    background: var(--gray-100);
    color: var(--gray-500)
}

.badge-accent {
    background: var(--accent-bg);
    color: #003f91
}

.table-wrap {
    overflow-x: auto
}

table {
    width: 100%;
    border-collapse: collapse
}

th {
    text-align: left;
    padding: 10px 16px;
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--gray-400);
    border-bottom: 1.5px solid var(--gray-100)
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: .92rem
}

tr:last-child td {
    border-bottom: none
}

tr:hover td {
    background: var(--gray-50)
}

.event-color {
    width: 4px;
    height: 36px;
    border-radius: 2px;
    display: inline-block
}

.page-header {
    padding: 32px 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end
}

.page-header h1 {
    margin-bottom: 4px
}

.grid-2 {
    display: grid;
    grid-template-columns:repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px
}

.event-card {
    display: flex;
    gap: 16px;
    align-items: stretch
}

.event-card-stripe {
    width: 4px;
    border-radius: 4px;
    flex-shrink: 0
}

.event-card-body {
    flex: 1
}

.event-card-body h3 {
    margin-bottom: 4px
}

.event-card-meta {
    color: var(--gray-400);
    font-size: .85rem;
    display: flex;
    gap: 16px;
    margin-top: 8px
}

.event-card-actions {
    margin-top: 14px;
    display: flex;
    gap: 8px
}

.booking-layout {
    display: grid;
    grid-template-columns:260px 1fr;
    max-width: 820px;
    margin: 0 auto;
    min-height: calc(100vh - 56px)
}

.booking-sidebar {
    background: var(--black);
    color: var(--white);
    padding: 32px 24px
}

.booking-sidebar h2 {
    font-size: 1.4rem;
    margin-bottom: 8px
}

.booking-sidebar .event-detail {
    color: var(--gray-300);
    font-size: .85rem;
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 8px
}

.booking-main {
    padding: 32px
}

.cal-grid {
    display: grid;
    grid-template-columns:repeat(7, 1fr);
    gap: 2px
}

.cal-header {
    text-align: center;
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--gray-400);
    padding: 6px 0
}

.cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .12s;
    max-width: 44px;
    max-height: 44px;
    margin: 0 auto
}

.cal-day:hover {
    background: var(--gray-100)
}

.cal-day.today {
    font-weight: 700
}

.cal-day.available {
    color: var(--black);
    font-weight: 600
}

.cal-day.available:hover {
    background: var(--black);
    color: var(--white)
}

.cal-day.unavailable {
    color: var(--gray-300);
    cursor: default
}

.cal-day.unavailable:hover {
    background: transparent
}

.cal-day.selected {
    background: var(--black);
    color: var(--white)
}

.cal-day.other-month {
    color: var(--gray-200)
}

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

.cal-nav h3 {
    font-size: 1rem
}

.slots-container {
    margin-top: 20px
}

.slots-grid {
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    gap: 6px;
    margin-top: 10px
}

.slot {
    padding: 8px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    text-align: center;
    font-weight: 600;
    font-size: .85rem;
    cursor: pointer;
    transition: all .12s;
    font-family: var(--mono)
}

.slot:hover {
    border-color: var(--black);
    background: var(--black);
    color: var(--white)
}

.slot.selected {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent)
}

.slot.slot-taken {
    color: var(--gray-300);
    border-color: var(--gray-100);
    background: var(--gray-50);
    cursor: default;
    text-decoration: line-through
}

.slot.slot-taken:hover {
    background: var(--gray-50);
    color: var(--gray-300);
    border-color: var(--gray-100)
}

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50)
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.auth-card h1 {
    text-align: center;
    margin-bottom: 8px
}

.auth-card .subtitle {
    text-align: center;
    color: var(--gray-400);
    font-size: .9rem;
    margin-bottom: 32px
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: .88rem;
    margin-bottom: 20px;
    font-weight: 500
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0
}

.alert-info {
    background: var(--accent-bg);
    color: #92400e;
    border: 1px solid #fde68a
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block
}

.status-dot.connected {
    background: var(--success)
}

.status-dot.disconnected {
    background: var(--gray-300)
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400)
}

.empty-state h3 {
    color: var(--gray-500);
    margin-bottom: 8px
}

.confirmation {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center
}

.confirmation-card {
    max-width: 480px;
    padding: 48px
}

.confirmation-icon {
    width: 64px;
    height: 64px;
    background: #dcfce7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px
}

@media (max-width: 768px) {
    /* Nav */
    .nav {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
        gap: 8px
    }

    .nav-brand {
        font-size: .95rem
    }

    .nav-brand img {
        height: 20px
    }

    .nav-links {
        width: 100%;
        overflow-x: auto;
        gap: 2px;
        order: 3;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch
    }

    .nav-links a {
        padding: 6px 10px;
        font-size: .8rem;
        white-space: nowrap;
        flex-shrink: 0
    }

    .nav-user {
        margin-left: auto;
        font-size: .8rem;
        gap: 8px
    }

    .nav-user .btn-sm {
        padding: 5px 10px;
        font-size: .75rem
    }

    /* Layout */
    .container, .container-sm {
        padding: 0 16px
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 20px 0 16px
    }

    .page-header h1 {
        font-size: 1.5rem
    }

    .grid-2 {
        grid-template-columns:1fr;
        gap: 12px
    }

    /* Cards */
    .card {
        padding: 20px
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px
    }

    /* Tables */
    .table-wrap {
        margin: 0 -20px;
        padding: 0 20px
    }

    table {
        min-width: 500px
    }

    /* Event cards */
    .event-card {
        flex-direction: column;
        gap: 12px
    }

    .event-card-stripe {
        width: 100%;
        height: 4px
    }

    .event-card-meta {
        flex-wrap: wrap;
        gap: 8px
    }

    .event-card-actions {
        flex-wrap: wrap
    }

    /* Booking */
    .booking-layout {
        grid-template-columns:1fr;
        max-width: 100%
    }

    .booking-sidebar {
        padding: 20px 16px
    }

    .booking-sidebar h2 {
        font-size: 1.2rem
    }

    .booking-main {
        padding: 20px 16px
    }

    .booking-main h2 {
        font-size: 1.2rem
    }

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

    .cal-day {
        font-size: .8rem;
        max-width: 38px;
        max-height: 38px
    }

    /* Auth */
    .auth-card {
        padding: 28px 20px;
        margin: 16px
    }

    /* Buttons */
    .btn-lg {
        padding: 12px 20px;
        font-size: .9rem
    }

    /* Confirmation */
    .confirmation-card {
        padding: 28px 20px
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px)
    }
    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.fade-in {
    animation: fadeIn .3s ease-out
}

@keyframes pulse {
    0%, 100% {
        opacity: 1
    }
    50% {
        opacity: .5
    }
}

.loading {
    animation: pulse 1.5s infinite
}