:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --bg: #f4f7f6;
    --surface: #ffffff;
    --surface-soft: #f7faf9;
    --text: #17231f;
    --muted: #66736e;
    --line: #dde6e2;
    --primary: #145c4e;
    --primary-dark: #0e463b;
    --primary-soft: #e8f4f0;
    --success: #147a4b;
    --success-soft: #e8f7ef;
    --danger: #b42318;
    --danger-soft: #fff0ee;
    --warning: #8a5d00;
    --warning-soft: #fff7df;
    --shadow: 0 12px 34px rgba(22, 49, 40, .08);
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: inherit; }
header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.container { width: min(1220px, calc(100% - 32px)); margin: 0 auto; }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-weight: 900; font-size: 1.12rem; letter-spacing: -.02em; text-decoration: none; }
.nav-actions { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; }
.user-chip { background: var(--surface-soft); border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; color: var(--muted); font-size: .88rem; }
main { padding: 30px 0 56px; }
.page-stack { display: grid; gap: 22px; }

.hero { margin: 0; }
.hero h1 { margin: 4px 0 8px; font-size: clamp(1.8rem, 4vw, 2.7rem); line-height: 1.08; letter-spacing: -.04em; }
.hero p { margin: 0; max-width: 780px; }
.hero-gradient { min-height: 230px; padding: 34px; border-radius: 24px; display: flex; align-items: center; justify-content: space-between; gap: 28px; background: linear-gradient(135deg, #103f37, #1b6b5c); color: white; box-shadow: var(--shadow); }
.hero-gradient p { color: rgba(255,255,255,.78); }
.hero-gradient .eyebrow { color: #cce9df; }
.hero-stat { min-width: 150px; padding: 22px; border-radius: 18px; background: rgba(255,255,255,.11); border: 1px solid rgba(255,255,255,.15); text-align: center; }
.hero-stat strong { display: block; font-size: 3rem; line-height: 1; }
.hero-stat span { display: block; margin-top: 8px; color: rgba(255,255,255,.76); }
.eyebrow { display: inline-block; font-size: .75rem; font-weight: 900; text-transform: uppercase; letter-spacing: .11em; color: var(--primary); }
.muted { color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: 0 4px 20px rgba(30, 58, 49, .035); }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 43px; padding: 0 17px; border-radius: 11px; border: 1px solid transparent; text-decoration: none; font-weight: 800; font-size: .92rem; cursor: pointer; background: var(--primary); color: #fff; transition: transform .16s ease, background .16s ease, border-color .16s ease; }
.btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn.secondary { background: var(--primary-soft); color: var(--primary-dark); }
.btn.ghost { background: #fff; color: var(--text); border-color: var(--line); }
.btn.danger { background: var(--danger-soft); color: var(--danger); border-color: #ffd2cd; }
.btn.full { width: 100%; }
.btn.spaced { margin-top: 8px; }
.icon-btn { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; background: #fff; font-size: 1.7rem; line-height: 1; color: var(--primary); }

label { display: block; font-weight: 800; margin-bottom: 6px; font-size: .9rem; }
input, select, textarea { width: 100%; min-height: 44px; border: 1px solid #cbd7d2; border-radius: 11px; padding: 10px 12px; background: #fff; color: var(--text); font: inherit; outline: none; }
input:focus, select:focus, textarea:focus { border-color: #59a18f; box-shadow: 0 0 0 3px rgba(20,92,78,.10); }
textarea { min-height: 110px; resize: vertical; }
.form-group { margin-bottom: 16px; }
.field-help { display: block; margin-top: 6px; color: var(--muted); }
.check-label { display: flex; align-items: center; gap: 9px; margin: 0; }
.check-label input { width: 18px; min-height: 18px; accent-color: var(--primary); }

.alert { padding: 13px 15px; border-radius: 12px; border: 1px solid transparent; }
.alert.success { background: var(--success-soft); color: #0f603b; border-color: #c8ead7; }
.alert.error { background: var(--danger-soft); color: #8f1d14; border-color: #ffd2cd; }
.alert.warning { background: var(--warning-soft); color: var(--warning); border-color: #f1df9d; }

.calendar-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 20px; align-items: stretch; }
.calendar-card { padding: 22px; }
.calendar-toolbar { display: grid; grid-template-columns: 44px 1fr 44px; gap: 14px; align-items: center; margin-bottom: 18px; }
.calendar-toolbar > div { text-align: center; }
.calendar-toolbar h2 { margin: 2px 0 0; font-size: 1.35rem; letter-spacing: -.02em; }
.calendar-weekdays, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; }
.calendar-weekdays { margin-bottom: 7px; }
.calendar-weekdays span { text-align: center; color: var(--muted); font-size: .76rem; font-weight: 900; text-transform: uppercase; }
.calendar-day { min-height: 64px; padding: 10px; border: 1px solid var(--line); border-radius: 13px; display: flex; flex-direction: column; justify-content: space-between; text-decoration: none; background: var(--surface); transition: .15s ease; }
.calendar-day:hover { border-color: #86b7a9; background: #f5fbf8; transform: translateY(-1px); }
.calendar-day > span { font-weight: 900; }
.calendar-day small { color: var(--primary); font-size: .66rem; font-weight: 900; }
.calendar-day.outside { opacity: .38; background: #fafbfb; }
.calendar-day.selected { color: #fff; background: var(--primary); border-color: var(--primary); box-shadow: 0 8px 18px rgba(20,92,78,.2); }
.calendar-day.selected small { color: #fff; }
.calendar-day.today:not(.selected) { border-color: var(--primary); }
.calendar-day.past { opacity: .45; }
.compact-calendar .calendar-day { min-height: 48px; justify-content: center; align-items: center; padding: 8px; }
.selected-date-card { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.selected-date-card h2 { margin: 0 0 8px; }
.selected-date-number { font-size: 4.2rem; font-weight: 900; color: var(--primary); line-height: 1; margin: 16px 0 6px; letter-spacing: -.08em; }
.selected-date-card .btn { margin-top: 12px; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.section-heading.tight { margin-bottom: 12px; }
.section-heading h2 { margin: 3px 0 0; font-size: 1.45rem; letter-spacing: -.025em; }
.legend { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: .85rem; }
.legend i { width: 10px; height: 10px; border-radius: 50%; background: var(--success); }

.room-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.room-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
.room-card-head { display: flex; justify-content: space-between; gap: 16px; }
.room-card h3 { margin: 0; font-size: 1.2rem; }
.room-card p { margin: 5px 0 0; color: var(--muted); font-size: .88rem; }
.room-status { white-space: nowrap; align-self: flex-start; display: inline-flex; padding: 5px 9px; border-radius: 999px; font-size: .72rem; font-weight: 900; text-transform: uppercase; letter-spacing: .04em; }
.room-status.open { background: var(--success-soft); color: var(--success); }
.room-status.closed { background: #eef1f0; color: #66736e; }
.slot-caption { margin-top: 16px !important; }
.slot-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.slot-list.large { gap: 10px; }
.slot-btn { min-width: 66px; padding: 8px 10px; border-radius: 10px; text-align: center; text-decoration: none; background: var(--success-soft); border: 1px solid #c4e8d4; color: #12633e; font-size: .84rem; font-weight: 900; transition: .15s ease; }
.slot-btn:hover, .slot-btn.selected { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-1px); }
.empty-state { padding: 24px; border: 1px dashed #cbd7d2; border-radius: 14px; background: var(--surface-soft); color: var(--muted); text-align: center; }
.empty-state.compact { margin-top: 15px; padding: 16px; }

.booking-step { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; }
.step-number { width: 38px; height: 38px; border-radius: 12px; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 900; }
.step-content { min-width: 0; }
.room-selector { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; }
.room-choice { min-height: 104px; padding: 15px; display: flex; flex-direction: column; gap: 3px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; background: var(--surface-soft); }
.room-choice:hover { border-color: #8bb9ad; }
.room-choice.active { background: var(--primary-soft); border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); }
.room-choice span, .room-choice small { color: var(--muted); }
.duration-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 14px; }
.duration-row > span { font-weight: 800; margin-right: 4px; }
.duration-chip { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: .82rem; font-weight: 800; background: #fff; }
.duration-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.booking-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 4px 0 20px; }
.booking-summary > div { padding: 13px; border-radius: 12px; background: var(--primary-soft); }
.booking-summary span { display: block; font-size: .75rem; color: var(--muted); }
.booking-summary strong { display: block; margin-top: 2px; }
.booking-confirm-card { border-color: #9ec7bb; }

.login-options { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0,1fr)); }
.login-card { padding: 26px; }
.login-card h2 { margin: 10px 0 8px; }
.provider-badge { display: inline-flex; padding: 6px 9px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: .72rem; font-weight: 900; text-transform: uppercase; }

.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.stat-card { border: 1px solid var(--line); background: #fff; border-radius: 18px; padding: 20px; }
.stat-card span { display: block; color: var(--muted); font-size: .82rem; }
.stat-card strong { display: block; font-size: 2.2rem; color: var(--primary); margin-top: 4px; }
.admin-menu-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.admin-menu-card { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 14px; padding: 20px; border: 1px solid var(--line); background: #fff; border-radius: 18px; text-decoration: none; transition: .15s ease; }
.admin-menu-card:hover { border-color: #8bb9ad; transform: translateY(-2px); box-shadow: var(--shadow); }
.admin-menu-card h2 { margin: 0; font-size: 1.08rem; }
.admin-menu-card p { margin: 4px 0 0; color: var(--muted); font-size: .87rem; }
.admin-icon { width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); font-size: 1.4rem; font-weight: 900; }
.admin-menu-card b { color: var(--primary); font-size: 1.3rem; }
.admin-two-col { display: grid; grid-template-columns: 370px minmax(0,1fr); gap: 18px; align-items: start; }
.sticky-card { position: sticky; top: 94px; }
.management-list { display: grid; gap: 10px; }
.management-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-soft); }
.management-row p { margin: 4px 0 0; color: var(--muted); font-size: .85rem; }
.management-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row-actions { display: flex; gap: 7px; flex-wrap: wrap; }
.schedule-list { display: grid; gap: 9px; margin-bottom: 18px; }
.schedule-row { display: grid; grid-template-columns: 1.5fr 1fr 1fr .8fr; gap: 12px; align-items: end; padding: 13px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-soft); }
.schedule-day { align-self: center; }
.inline-filter { display: flex; gap: 10px; align-items: end; }
.inline-filter > div { min-width: 280px; }

@media (max-width: 980px) {
    .calendar-layout, .admin-two-col { grid-template-columns: 1fr; }
    .selected-date-card { min-height: 220px; }
    .sticky-card { position: static; }
    .room-selector { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .stats-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 760px) {
    .container { width: min(100% - 22px, 1220px); }
    .nav { align-items: flex-start; padding: 12px 0; }
    .nav-actions { justify-content: flex-end; }
    .user-chip { display: none; }
    .hero-gradient { padding: 24px; min-height: 0; flex-direction: column; align-items: flex-start; }
    .hero-stat { width: 100%; text-align: left; }
    .hero-stat strong { font-size: 2.1rem; }
    .grid-2, .login-options, .room-grid, .admin-menu-grid { grid-template-columns: 1fr; }
    .calendar-card { padding: 14px; }
    .calendar-weekdays, .calendar-grid { gap: 4px; }
    .calendar-day { min-height: 49px; padding: 7px; border-radius: 10px; }
    .calendar-day small { display: none; }
    .selected-date-card { display: none; }
    .room-card { padding: 16px; }
    .room-card-head { flex-direction: column; }
    .room-status { align-self: flex-start; }
    .booking-step { grid-template-columns: 1fr; }
    .step-number { width: 34px; height: 34px; }
    .room-selector { grid-template-columns: 1fr 1fr; }
    .booking-summary { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .schedule-row { grid-template-columns: 1fr 1fr; }
    .schedule-day { grid-column: 1 / -1; }
    .management-row { align-items: flex-start; flex-direction: column; }
    .inline-filter { align-items: stretch; flex-direction: column; }
    .inline-filter > div { min-width: 0; }
}

@media (max-width: 440px) {
    .room-selector, .stats-grid { grid-template-columns: 1fr; }
    .btn { min-height: 40px; padding: 0 12px; }
    .nav-actions .btn.secondary { display: none; }
    .calendar-toolbar h2 { font-size: 1.08rem; }
}