/*
 * SPDX-License-Identifier: Apache-2.0
 * Copyright 2026 CLSOFTLAB (씨엘소프트랩), Dr. Lee Il-guk (이일국)
 * 짐매니저 — Gym Management SaaS (demo)
 */

:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e4e8f0;
  --text: #1a2233;
  --text-dim: #64708a;
  --primary: #4f7cff;
  --primary-dim: #e8effe;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --warn: #d97706;
  --warn-bg: #fef3c7;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --paused: #7c3aed;
  --paused-bg: #ede9fe;
  --shadow: 0 1px 3px rgba(20, 30, 60, .08), 0 1px 2px rgba(20, 30, 60, .04);
  --shadow-lg: 0 10px 30px rgba(20, 30, 60, .12);
  --radius: 14px;
  --radius-sm: 9px;
  --sidebar-w: 244px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1420;
    --surface: #171d2b;
    --surface-2: #1e2536;
    --border: #2a3244;
    --text: #e7ecf5;
    --text-dim: #93a0b8;
    --primary: #6b95ff;
    --primary-dim: #1e2a4d;
    --success: #4ade80;
    --success-bg: #113524;
    --warn: #fbbf24;
    --warn-bg: #3a2c0c;
    --danger: #f87171;
    --danger-bg: #3a1616;
    --paused: #a78bfa;
    --paused-bg: #2a1f4a;
    --shadow: 0 1px 3px rgba(0, 0, 0, .4);
    --shadow-lg: 0 12px 34px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; }
button { font-family: inherit; }

/* ---------- Layout ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 14px;
}
.brand-logo { font-size: 26px; }
.brand-text strong { display: block; font-size: 17px; }
.brand-text small { color: var(--text-dim); font-size: 11px; letter-spacing: .5px; }

.nav { flex: 1; overflow-y: auto; padding: 6px 10px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  width: 100%;
  padding: 10px 12px; margin-bottom: 2px;
  border: none; background: none; cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-dim); font-size: 14.5px; font-weight: 600;
  text-align: left;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--primary-dim); color: var(--primary); }
.nav-item .ic { font-size: 17px; width: 22px; text-align: center; }
.nav-sep { font-size: 10.5px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); padding: 14px 14px 6px; font-weight: 700; opacity: .7; }

.sidebar-foot { padding: 12px 14px; border-top: 1px solid var(--border); }
.demo-tag { font-size: 10.5px; color: var(--text-dim); text-align: center; margin: 8px 0 0; letter-spacing: .5px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.page-title { font-size: 19px; margin-right: auto; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.search-wrap { position: relative; }
.search-input {
  border: 1px solid var(--border); background: var(--surface-2);
  border-radius: 999px; padding: 8px 15px; font-size: 13.5px;
  width: 220px; color: var(--text); outline: none;
}
.search-input:focus { border-color: var(--primary); }
.chip {
  border: 1px solid var(--border); background: var(--surface-2);
  border-radius: 999px; padding: 7px 12px; font-size: 12.5px;
  color: var(--text-dim); cursor: default;
}
.icon-btn {
  border: none; background: none; cursor: pointer; font-size: 20px;
  color: var(--text); padding: 4px 8px; border-radius: 8px; line-height: 1;
}
.icon-btn:hover { background: var(--surface-2); }
#menu-toggle { display: none; }

.view { padding: 22px; max-width: 1280px; width: 100%; margin: 0 auto; }

.sidebar-backdrop {
  position: fixed; inset: 0; background: rgba(10, 15, 30, .5);
  z-index: 39; backdrop-filter: blur(1px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); border-radius: var(--radius-sm);
  padding: 9px 15px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { filter: brightness(1.07); background: var(--primary); }
.btn-ghost { background: none; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-bg); }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px;
}
.stat .stat-label { color: var(--text-dim); font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 7px; }
.stat .stat-value { font-size: 27px; font-weight: 800; margin-top: 6px; letter-spacing: -.5px; }
.stat .stat-sub { font-size: 12px; color: var(--text-dim); margin-top: 3px; }
.stat-ic { font-size: 18px; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; flex-wrap: wrap; gap: 8px; }
.panel-title { font-size: 16px; }
.panel-sub { font-size: 12.5px; color: var(--text-dim); }

.two-col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
.chart-box { position: relative; height: 280px; }
.chart-box.sm { height: 220px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-sm); }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 560px; }
table.data th, table.data td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data th { color: var(--text-dim); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; cursor: pointer; user-select: none; }
table.data th.no-sort { cursor: default; }
table.data tbody tr:hover { background: var(--surface-2); }
table.data td.num { text-align: right; font-variant-numeric: tabular-nums; }
.sort-ind { opacity: .5; font-size: 10px; }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 700; }
.badge.active { background: var(--success-bg); color: var(--success); }
.badge.expired { background: var(--danger-bg); color: var(--danger); }
.badge.paused { background: var(--paused-bg); color: var(--paused); }
.badge.soon { background: var(--warn-bg); color: var(--warn); }
.badge.muted { background: var(--surface-2); color: var(--text-dim); }
.badge.pt { background: var(--primary-dim); color: var(--primary); }

/* ---------- Toolbar / filters ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.toolbar .spacer { flex: 1; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--text-dim); }
input, select, textarea {
  font-family: inherit; font-size: 14px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 9px 11px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
textarea { resize: vertical; min-height: 60px; }
select { cursor: pointer; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; background: var(--surface); }
.seg button { border: none; background: none; padding: 7px 14px; font-size: 13px; font-weight: 600; color: var(--text-dim); cursor: pointer; }
.seg button.active { background: var(--primary); color: #fff; }

/* ---------- Modal ---------- */
.modal-root { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal-root[hidden] { display: none; }
[hidden] { display: none !important; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(10, 15, 30, .55); }
.modal {
  position: relative; background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); width: min(560px, 100%); max-height: 90vh;
  display: flex; flex-direction: column; border: 1px solid var(--border);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 17px; }
.modal-body { padding: 18px; overflow-y: auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.form-grid .full { grid-column: 1 / -1; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }

/* ---------- Toast ---------- */
.toast-root { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 80; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  background: var(--text); color: var(--bg); padding: 11px 18px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow-lg); animation: pop .25s ease;
}
.toast.ok { background: var(--success); color: #fff; }
.toast.err { background: var(--danger); color: #fff; }
@keyframes pop { from { transform: translateY(10px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- Misc ---------- */
.muted { color: var(--text-dim); }
.empty { text-align: center; color: var(--text-dim); padding: 40px 20px; }
.empty .big { font-size: 34px; display: block; margin-bottom: 8px; }
.row-actions { display: flex; gap: 6px; }
.link-btn { border: none; background: none; color: var(--primary); cursor: pointer; font-size: 13px; font-weight: 600; padding: 2px 4px; }
.link-btn.danger { color: var(--danger); }
.kv { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.kv:last-child { border-bottom: none; }
.kv .k { color: var(--text-dim); }
.tag-inline { font-size: 11px; padding: 2px 7px; border-radius: 6px; background: var(--surface-2); color: var(--text-dim); }
.avatar { width: 34px; height: 34px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; color: #fff; flex-shrink: 0; }
.mem-cell { display: flex; align-items: center; gap: 10px; }
.progress { height: 7px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.progress > i { display: block; height: 100%; background: var(--primary); border-radius: 999px; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12.5px; color: var(--text-dim); }
.legend span { display: inline-flex; align-items: center; gap: 5px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.hint { background: var(--primary-dim); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 13px; font-size: 12.5px; margin-bottom: 16px; }
.hint b { color: var(--primary); }

/* calendar / schedule */
.sched-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.sched-day h4 { font-size: 13px; color: var(--text-dim); text-align: center; padding: 6px; border-radius: 8px; background: var(--surface-2); margin-bottom: 8px; }
.cls-card { border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: 9px; padding: 9px 10px; margin-bottom: 8px; background: var(--surface); cursor: pointer; }
.cls-card:hover { box-shadow: var(--shadow); }
.cls-card .t { font-weight: 700; font-size: 13px; }
.cls-card .meta { font-size: 11.5px; color: var(--text-dim); margin-top: 3px; }
.cls-fill { font-size: 11px; margin-top: 6px; }

/* locker grid */
.locker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(74px, 1fr)); gap: 9px; }
.locker {
  aspect-ratio: 1; border-radius: 10px; border: 1.5px solid var(--border);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; cursor: pointer; background: var(--surface-2); gap: 2px;
}
.locker.occupied { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); }
.locker.empty { color: var(--text-dim); }
.locker small { font-weight: 500; font-size: 9.5px; }
.locker:hover { box-shadow: var(--shadow); }

.portal-hero { background: linear-gradient(135deg, var(--primary), #7c3aed); color: #fff; border-radius: var(--radius); padding: 24px; margin-bottom: 18px; }
.portal-hero h2 { font-size: 22px; }
.portal-hero p { opacity: .9; margin: 6px 0 0; }
.select-inline { padding: 6px 10px; font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .sched-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .sidebar {
    position: fixed; left: 0; top: 0; transform: translateX(-100%);
    transition: transform .22s ease; box-shadow: var(--shadow-lg);
  }
  .app-shell.nav-open .sidebar { transform: none; }
  #menu-toggle { display: inline-flex; }
  .search-input { width: 130px; }
  .view { padding: 15px; }
  .form-grid { grid-template-columns: 1fr; }
  .sched-grid { grid-template-columns: 1fr; }
  .chip { display: none; }
}
@media (min-width: 721px) { .sidebar-backdrop { display: none !important; } }