:root {
    --bg-main: #fdf6ec;
    --bg-card: #ffffff;
    --bg-soft: #f7efe3;
    --text-main: #2c2c2c;
    --text-soft: #6f6255;
    --accent: #c58b5c;
    --accent-hover: #b77a49;
    --accent-soft: #ecd2b1;
    --border: #e7d8c7;
    --shadow: rgba(0, 0, 0, 0.06);

    --success-bg: #edf7ee;
    --success-border: #bdddbf;
    --danger-bg: #fbefef;
    --danger-border: #e5bcbc;
    --warning-bg: #faf4e8;
    --warning-border: #e5d1aa;
}

[data-theme="dark"] {
    --bg-main: #1f1f1f;
    --bg-card: #2b2b2b;
    --bg-soft: #242424;
    --text-main: #f5f5f5;
    --text-soft: #cbbcae;
    --accent: #d4a373;
    --accent-hover: #c6925f;
    --accent-soft: #3a2e23;
    --border: #3a3a3a;
    --shadow: rgba(0, 0, 0, 0.28);

    --success-bg: #223126;
    --success-border: #3d6b46;
    --danger-bg: #362626;
    --danger-border: #7c4c4c;
    --warning-bg: #382f22;
    --warning-border: #75603a;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.45;
}

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

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 14px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 10px 25px var(--shadow);
    margin-bottom: 16px;
}

h1,
h2,
h3 {
    margin: 0 0 10px;
    line-height: 1.2;
}

p {
    margin: 0 0 10px;
}

label {
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
    color: var(--text-soft);
}

.input,
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-main);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 14px;
}

.input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(197, 139, 92, 0.14);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 16px;
    border: none;
    border-radius: 12px;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

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

.btn:active {
    transform: translateY(1px);
}

.btn-secondary {
    background: var(--accent-soft);
    color: var(--text-main);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.theme-toggle {
    cursor: pointer;
}

.booking-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.calendar-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.calendar-toolbar .input {
    margin-bottom: 0;
    max-width: 180px;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 13px;
    color: var(--text-soft);
}

.calendar-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.calendar-legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
}

.calendar-legend-dot.available {
    background: var(--success-bg);
    border-color: var(--success-border);
}

.calendar-legend-dot.reserved {
    background: var(--danger-bg);
    border-color: var(--danger-border);
}

.calendar-legend-dot.blocked {
    background: var(--warning-bg);
    border-color: var(--warning-border);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
}

.calendar-weekday {
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-soft);
    padding: 4px 2px 8px;
}

.calendar-day {
    min-height: 82px;
    padding: 8px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.calendar-day.available {
    background: var(--success-bg);
    border-color: var(--success-border);
}

.calendar-day.reserved {
    background: var(--danger-bg);
    border-color: var(--danger-border);
}

.calendar-day.blocked {
    background: var(--warning-bg);
    border-color: var(--warning-border);
}

.calendar-day.empty {
    background: transparent;
    border: 1px dashed transparent;
    box-shadow: none;
    min-height: 82px;
}

.calendar-day-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 6px;
}

.calendar-day-number {
    font-size: 15px;
    font-weight: 800;
    line-height: 1;
}

.calendar-day-date {
    font-size: 10px;
    color: var(--text-soft);
    text-align: right;
    line-height: 1.2;
}

.calendar-day-middle {
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
}

.calendar-day-bottom {
    font-size: 11px;
    color: var(--text-soft);
    line-height: 1.2;
}

.calendar-loading,
.calendar-error,
.calendar-success {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
}

.calendar-loading {
    background: var(--bg-soft);
    border: 1px solid var(--border);
}

.calendar-error {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: #8a2525;
}

.calendar-success {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: #1d6b36;
}

.quote-box,
.form-message {
    margin-top: 14px;
    padding: 14px;
    border-radius: 12px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
}

@media (min-width: 1024px) {
    .booking-layout {
        grid-template-columns: 1.08fr 0.92fr;
        align-items: start;
    }

    .card {
        padding: 20px;
    }
}

@media (max-width: 900px) {
    .calendar-grid {
        gap: 6px;
    }

    .calendar-day,
    .calendar-day.empty {
        min-height: 72px;
        padding: 6px;
        border-radius: 10px;
    }

    .calendar-day-number {
        font-size: 14px;
    }

    .calendar-day-middle {
        font-size: 11px;
    }

    .calendar-day-bottom {
        font-size: 10px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 10px;
    }

    .card {
        padding: 14px;
        border-radius: 14px;
    }

    .navbar {
        padding: 12px;
    }

    .calendar-grid {
        grid-template-columns: repeat(7, minmax(0, 1fr));
        gap: 4px;
    }

    .calendar-weekday {
        font-size: 10px;
        padding-bottom: 4px;
    }

    .calendar-day,
    .calendar-day.empty {
        min-height: 62px;
        padding: 5px;
        border-radius: 8px;
    }

    .calendar-day-top {
        margin-bottom: 4px;
    }

    .calendar-day-number {
        font-size: 12px;
    }

    .calendar-day-date {
        font-size: 9px;
    }

    .calendar-day-middle {
        font-size: 10px;
    }

    .calendar-day-bottom {
        font-size: 9px;
    }

    .btn {
        width: 100%;
    }

    .calendar-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .calendar-toolbar .input {
        max-width: none;
    }
}