/* ============================================================
   C&H's English note — design tokens & base styles
   Calm, minimal: white surfaces, one accent, generous space.
   ============================================================ */

:root {
  /* ink / text */
  --ink-1: #1b1b19;   /* primary text */
  --ink-2: #56564f;   /* secondary text */
  --ink-3: #8a8a80;   /* tertiary / hints */
  --ink-4: #b6b6ac;   /* faint */

  /* surfaces */
  --bg: #fafaf7;      /* page (warm white) */
  --surface: #ffffff; /* cards */
  --surface-2: #f5f5f1;

  /* lines */
  --line: #e9e9e2;
  --line-2: #f0f0ea;

  /* accent (single point color) — calm pine */
  --accent: #1f7a5c;
  --accent-press: #186347;
  --accent-soft: #ecf4ef;
  --accent-ink: #155740;

  /* semantic tints */
  --good: #2f8f63;
  --warn: #b9802f;
  --bad: #c0573f;
  --good-soft: #ecf4ef;
  --warn-soft: #f6efe2;
  --bad-soft: #f8ece8;

  /* radii */
  --r-sm: 7px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-pill: 999px;

  /* shadow (used sparingly) */
  --shadow-pop: 0 1px 2px rgba(27,27,25,.05), 0 8px 28px rgba(27,27,25,.10);

  /* type */
  --font: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont,
          "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --maxw: 940px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink-1);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; }
input, textarea, select { font-family: inherit; }

::selection { background: var(--accent-soft); }

/* ---- typography helpers ---- */
.h-xl { font-size: 27px; font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
.h-lg { font-size: 21px; font-weight: 700; letter-spacing: -.015em; line-height: 1.25; }
.h-md { font-size: 17px; font-weight: 650; letter-spacing: -.01em; }
.eng  { font-size: 19px; font-weight: 650; letter-spacing: -.01em; }
.label{ font-size: 11.5px; font-weight: 650; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); white-space: nowrap; }
.muted{ color: var(--ink-2); }
.faint{ color: var(--ink-3); }

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

.sidebar {
  width: 232px; flex: none; position: sticky; top: 0; height: 100vh;
  background: var(--surface); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 22px 16px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 4px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  background: var(--accent); color: #fff; display: grid; place-items: center;
  font-weight: 750; font-size: 13px; letter-spacing: -.02em;
}
.brand-name { font-weight: 700; font-size: 14.5px; letter-spacing: -.01em; line-height: 1.15; }
.brand-sub { font-size: 11px; color: var(--ink-3); white-space: nowrap; }

.nav { display: flex; flex-direction: column; gap: 2px; margin-top: 22px; }
.nav-item {
  display: flex; align-items: center; gap: 11px; width: 100%;
  padding: 9px 11px; border-radius: var(--r-sm); border: 0; background: transparent;
  color: var(--ink-2); font-size: 14px; font-weight: 550; cursor: pointer;
  text-align: left; transition: background .14s, color .14s;
}
.nav-item:hover { background: var(--surface-2); color: var(--ink-1); }
.nav-item.active { background: var(--accent-soft); color: var(--accent-ink); font-weight: 650; }
.nav-item .nav-badge {
  margin-left: auto; font-size: 11.5px; font-weight: 700; color: var(--accent);
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-pill);
  min-width: 20px; height: 20px; padding: 0 6px; display: grid; place-items: center;
}
.nav-item.active .nav-badge { border-color: transparent; background: var(--accent); color: #fff; }

.sidebar-foot { margin-top: auto; padding: 8px; font-size: 11.5px; color: var(--ink-4); }

.logout-btn {
  display: flex; align-items: center; justify-content: center; width: 100%;
  padding: 8px 11px; border-radius: var(--r-sm); border: 1px solid var(--line);
  background: transparent; color: var(--ink-2); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background .14s, color .14s;
}
.logout-btn:hover { background: var(--surface-2); color: var(--ink-1); }

/* mobile-only floating logout (sidebar is hidden) */
.logout-fab { display: none; }

.main { flex: 1; min-width: 0; }
.content { max-width: var(--maxw); margin: 0 auto; padding: 40px 36px 96px; }

.page-head { margin-bottom: 28px; }
.page-head .h-xl { margin: 0 0 4px; }

/* mobile bottom nav (hidden on desktop) */
.tabbar { display: none; }

@media (max-width: 860px) {
  .app { display: block; }
  .sidebar { display: none; }
  .content { padding: 52px 18px 110px; }
  .logout-fab {
    display: inline-flex; align-items: center; position: fixed; z-index: 50;
    top: calc(10px + env(safe-area-inset-top)); right: 14px;
    padding: 7px 13px; border-radius: var(--r-pill); border: 1px solid var(--line);
    background: var(--surface); color: var(--ink-2); font-size: 12.5px; font-weight: 600;
    cursor: pointer; box-shadow: 0 1px 3px rgba(0, 0, 0, .06);
  }
  .tabbar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    background: var(--surface); border-top: 1px solid var(--line);
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
  }
  .tab {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
    background: transparent; border: 0; padding: 7px 2px; cursor: pointer;
    color: var(--ink-3); font-size: 10.5px; font-weight: 600; position: relative;
  }
  .tab.active { color: var(--accent); }
  .tab .tab-dot {
    position: absolute; top: 4px; right: calc(50% - 18px);
    min-width: 16px; height: 16px; padding: 0 4px; border-radius: var(--r-pill);
    background: var(--accent); color: #fff; font-size: 9.5px; font-weight: 700;
    display: grid; place-items: center;
  }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: var(--r-sm); cursor: pointer;
  font-weight: 600; font-size: 14px; letter-spacing: -.005em;
  padding: 9px 15px; transition: background .14s, border-color .14s, color .14s, transform .04s;
  white-space: nowrap; line-height: 1.2;
}
.btn:active { transform: translateY(.5px); }
.btn:disabled { opacity: .5; cursor: default; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:not(:disabled):hover { background: var(--accent-press); }

.btn-ghost { background: transparent; color: var(--ink-1); border-color: var(--line); }
.btn-ghost:not(:disabled):hover { background: var(--surface-2); border-color: var(--ink-4); }

.btn-quiet { background: transparent; color: var(--ink-2); }
.btn-quiet:not(:disabled):hover { background: var(--surface-2); color: var(--ink-1); }

.btn-lg { padding: 13px 22px; font-size: 15.5px; border-radius: var(--r-md); }
.btn-sm { padding: 6px 11px; font-size: 13px; }
.btn-block { width: 100%; }

.icon-btn {
  display: inline-grid; place-items: center; width: 32px; height: 32px;
  border-radius: var(--r-sm); border: 0; background: transparent; cursor: pointer;
  color: var(--ink-3); transition: background .14s, color .14s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--ink-1); }
.icon-btn.danger:hover { background: var(--bad-soft); color: var(--bad); }

/* ============================================================
   Cards / surfaces
   ============================================================ */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 18px;
}
.card-hover { transition: border-color .14s, background .14s; }
.card-hover:hover { border-color: var(--ink-4); }

/* ============================================================
   Badges / chips / tags
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 9px;
  border-radius: var(--r-pill); font-size: 12px; font-weight: 650; letter-spacing: -.005em;
  background: var(--surface-2); color: var(--ink-2); white-space: nowrap;
}
.badge.formal  { background: var(--accent-soft); color: var(--accent-ink); }
.badge.neutral { background: var(--surface-2); color: var(--ink-2); }
.badge.casual  { background: var(--warn-soft); color: var(--warn); }

.chip {
  display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px;
  border-radius: var(--r-pill); border: 1px solid var(--line); background: var(--surface);
  color: var(--ink-2); font-size: 13px; font-weight: 550; cursor: pointer; white-space: nowrap;
  transition: background .14s, border-color .14s, color .14s;
}
.chip:hover { border-color: var(--ink-4); color: var(--ink-1); }
.chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }

.tag {
  display: inline-flex; align-items: center; height: 20px; padding: 0 8px;
  border-radius: var(--r-sm); background: var(--surface-2); color: var(--ink-2);
  font-size: 11.5px; font-weight: 600; white-space: nowrap;
}

/* ============================================================
   Forms
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 7px; }
.field > label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.input, .textarea {
  width: 100%; border: 1px solid var(--line); background: var(--surface);
  border-radius: var(--r-sm); padding: 10px 12px; font-size: 15px; color: var(--ink-1);
  transition: border-color .14s, box-shadow .14s; resize: none; line-height: 1.5;
}
.input::placeholder, .textarea::placeholder { color: var(--ink-4); }
.input:focus, .textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search {
  display: flex; align-items: center; gap: 9px; height: 40px; padding: 0 13px;
  border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface);
  flex: 1; min-width: 0; transition: border-color .14s, box-shadow .14s;
}
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search input { border: 0; outline: 0; background: transparent; flex: 1; min-width: 0; font-size: 14.5px; color: var(--ink-1); }
.search input::placeholder { color: var(--ink-4); }

.select {
  height: 40px; border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--surface); padding: 0 32px 0 12px; font-size: 14px; color: var(--ink-1);
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238a8a80' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat; background-position: right 11px center;
}
.select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ============================================================
   Modal
   ============================================================ */
.overlay {
  position: fixed; inset: 0; z-index: 60; background: rgba(27,27,25,.34);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 7vh 18px 18px; overflow-y: auto;
  animation: fade .16s ease;
}
.modal {
  width: 100%; max-width: 560px; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-pop);
  animation: pop .18s cubic-bezier(.2,.8,.3,1);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line-2); }
.modal-body { padding: 20px; }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 16px 20px; border-top: 1px solid var(--line-2); }

@keyframes fade { from { opacity: 0; } }
@keyframes pop  { from { opacity: 0; transform: translateY(8px) scale(.985); } }
@keyframes rise { from { transform: translateY(8px); } to { transform: none; } }

/* ============================================================
   Misc
   ============================================================ */
.row { display: flex; align-items: center; gap: 12px; }
.col { display: flex; flex-direction: column; }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.divider { height: 1px; background: var(--line-2); border: 0; margin: 0; }

.spinner {
  width: 15px; height: 15px; border-radius: 50%;
  border: 2px solid var(--accent-soft); border-top-color: var(--accent);
  animation: spin .7s linear infinite; display: inline-block;
}
.spinner.light { border-color: rgba(255,255,255,.4); border-top-color: #fff; }
@keyframes spin { to { transform: rotate(360deg); } }

.empty {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 10px; padding: 56px 20px; color: var(--ink-3);
}
.empty .empty-ic { width: 44px; height: 44px; border-radius: 13px; background: var(--surface-2); display: grid; place-items: center; color: var(--ink-4); }

.ai-pill {
  display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 10px;
  border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent-ink);
  font-size: 11.5px; font-weight: 700; letter-spacing: .01em;
}

.rise { animation: rise .26s ease both; }

/* stat tiles */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 560px){ .stat-grid { grid-template-columns: 1fr; } }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 18px; }
.stat .stat-n { font-size: 30px; font-weight: 750; letter-spacing: -.03em; line-height: 1; }
.stat .stat-l { font-size: 13px; color: var(--ink-2); margin-top: 8px; white-space: nowrap; }

/* expression grid */
.expr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 680px){ .expr-grid { grid-template-columns: 1fr; } }

/* progress */
.progress { height: 4px; border-radius: var(--r-pill); background: var(--line); overflow: hidden; }
.progress > i { display: block; height: 100%; background: var(--accent); border-radius: var(--r-pill); transition: width .3s ease; }

/* eval blocks */
.eval { border: 1px solid var(--line); border-radius: var(--r-md); padding: 14px 16px; }
.eval .eval-h { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; white-space: nowrap; }
.eval.g { background: var(--good-soft); border-color: #dcebe1; }
.eval.g .eval-h { color: var(--good); }
.eval.n { background: var(--surface-2); }
.eval.n .eval-h { color: var(--ink-2); }
.eval.s { background: var(--accent-soft); border-color: #d8e8df; }
.eval.s .eval-h { color: var(--accent-ink); }

/* segmented control */
.seg { display: inline-flex; background: var(--surface-2); border-radius: var(--r-sm); padding: 3px; gap: 3px; }
.seg button { border: 0; background: transparent; padding: 7px 16px; border-radius: 6px; font-size: 13.5px; font-weight: 600; color: var(--ink-2); cursor: pointer; transition: background .14s, color .14s; white-space: nowrap; }
.seg button.on { background: var(--surface); color: var(--ink-1); box-shadow: 0 1px 2px rgba(27,27,25,.07); }

/* theme picker cards */
.theme-card { display: inline-flex; align-items: center; gap: 9px; padding: 9px 14px 9px 11px; border: 1.5px solid var(--line); border-radius: var(--r-pill); background: var(--surface); cursor: pointer; transition: border-color .14s; }
.theme-card:hover { border-color: var(--ink-4); }
.theme-dot { width: 16px; height: 16px; border-radius: 50%; flex: none; }

/* weekly calendar */
.wk-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.wk-col { display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 0; }
.wk-dow { font-size: 11.5px; font-weight: 600; color: var(--ink-3); }
.wk-cell { width: 100%; aspect-ratio: 1 / 1; max-height: 64px; border-radius: var(--r-sm); display: grid; place-items: center; font-size: 14px; font-weight: 700; }
.wk-date { font-size: 11px; color: var(--ink-4); }