@font-face {
    font-family: "IRANSansWeb";
    src: url("/fonts/IRANSansWeb.ttf") format("truetype");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

:root {
    --bk-bg: #f4f8f9;
    --bk-ink: #16324a;
    --bk-muted: #5f7585;
    --bk-line: #d5e3ea;
    --bk-card: #ffffff;
    --bk-accent: #1f8a8a;
    --bk-accent-soft: #e4f4f4;
    --bk-hero: linear-gradient(180deg, #eaf4f6 0%, #f4f8f9 40%, #eef3f6 100%);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "IRANSansWeb", Tahoma, sans-serif;
    color: var(--bk-ink);
    background: var(--bk-hero);
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.bk-preview-banner { background: #16324a; color: #e4f4f4; text-align: center; font-size: 13px; padding: 8px; }
.bk-top, .bk-hero, .bk-services-preview, .bk-booking, .bk-footer { width: min(1100px, 92%); margin: 0 auto; }
.bk-top { display: flex; justify-content: space-between; gap: 1rem; padding: 1.25rem 0; align-items: center; }
.bk-brand strong { display: block; font-size: 1.15rem; }
.bk-brand span, .bk-contact { color: var(--bk-muted); font-size: .9rem; }
.bk-hero { padding: 2.5rem 0 2rem; }
.bk-kicker { color: var(--bk-accent); margin: 0 0 .5rem; font-weight: 600; }
.bk-hero h1 { margin: 0; font-size: clamp(2rem, 5vw, 3rem); }
.bk-hero p { max-width: 34rem; color: var(--bk-muted); }
.bk-cta {
    display: inline-block; margin-top: 1rem; background: var(--bk-accent); color: #fff;
    padding: .75rem 1.25rem; border-radius: .65rem; font-weight: 600;
}
.bk-services-preview { padding: 1rem 0 2rem; }
.bk-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.bk-card {
    background: var(--bk-card); border: 1px solid var(--bk-line); border-radius: .85rem; padding: 1rem 1.1rem;
    box-shadow: 0 8px 24px rgba(22, 50, 74, .05);
}
.bk-card h3 { margin: 0 0 .35rem; }
.bk-card p { margin: 0; color: var(--bk-muted); font-size: .92rem; min-height: 2.8em; }
.bk-card-meta { display: flex; justify-content: space-between; margin-top: .85rem; font-size: .9rem; }
.bk-booking { padding: 1.5rem 0 3rem; }
.bk-booking-head p { color: var(--bk-muted); margin: 0 0 1rem; }
.bk-booking-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 900px) { .bk-booking-grid { grid-template-columns: .9fr 1.1fr 1fr; } }
.bk-services, .bk-calendar, .bk-slots {
    background: var(--bk-card); border: 1px solid var(--bk-line); border-radius: .85rem; padding: 1rem;
}
.bk-service, .bk-slot, .bk-day, .bk-cal-nav button, .bk-submit {
    font: inherit; cursor: pointer; border: 1px solid var(--bk-line); background: #fff; border-radius: .65rem;
}
.bk-service { display: grid; width: 100%; text-align: right; gap: .15rem; padding: .75rem; margin-bottom: .5rem; }
.bk-service.is-active, .bk-slot.is-active, .bk-day.is-selected { border-color: var(--bk-accent); background: var(--bk-accent-soft); }
.bk-slot.is-booked { opacity: .55; cursor: not-allowed; text-decoration: line-through; background: var(--bk-surface, #f1f5f9); color: var(--bk-muted); }
.bk-slot:disabled { cursor: not-allowed; }
.bk-service span, .bk-muted, .bk-slots-date { color: var(--bk-muted); font-size: .88rem; }
.bk-cal-nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: .75rem; }
.bk-cal-nav button { width: 2rem; height: 2rem; }
.bk-cal-weekdays, .bk-cal-days { display: grid; grid-template-columns: repeat(7, 1fr); gap: .35rem; text-align: center; }
.bk-cal-weekdays { color: var(--bk-muted); font-size: .8rem; margin-bottom: .35rem; }
.bk-day { aspect-ratio: 1; padding: 0; }
.bk-day.is-muted, .bk-day:disabled { opacity: .35; cursor: not-allowed; }
.bk-day.is-today { outline: 1px solid var(--bk-accent); }
.bk-slot-list { display: flex; flex-wrap: wrap; gap: .4rem; margin: .75rem 0; }
.bk-slot { padding: .45rem .7rem; }
.bk-form { display: grid; gap: .55rem; margin-top: .75rem; }
.bk-form input { border: 1px solid var(--bk-line); border-radius: .65rem; padding: .7rem .8rem; font: inherit; }
.bk-submit { background: var(--bk-accent); color: #fff; border-color: var(--bk-accent); padding: .75rem; font-weight: 600; }
.bk-submit:disabled { opacity: .6; cursor: wait; }
.bk-success { color: #166534; margin: 0; }
.bk-error { color: #b91c1c; margin: 0; }
.bk-footer { padding: 1.5rem 0 2.5rem; color: var(--bk-muted); font-size: .9rem; border-top: 1px solid var(--bk-line); margin-top: 1rem; }