:root {
  --primary: #0f766e; --accent: #14b8a6;
  --bg: #f4f6f8; --card: #fff; --ink: #16232e; --muted: #5b6b78;
  --line: #e3e8ec; --ok: #0f9d58; --ok-bg: #e9f7ef; --no: #d93025; --no-bg: #fdecea;
  --warn: #b98900; --warn-bg: #fdf6e3; --radius: 14px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Inter","Segoe UI",system-ui,Arial,sans-serif; background: var(--bg); color: var(--ink); min-height: 100vh; display: flex; flex-direction: column; }
.topbar { background: var(--card); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1080px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; }
.brand-name { font-weight: 700; }
.topnav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.nav-link { border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 600; padding: 8px 12px; border-radius: 10px; cursor: pointer; }
.nav-link:hover, .nav-link.active { background: var(--bg); color: var(--ink); }
.nav-user { font-size: 13px; color: var(--muted); padding: 0 6px; }
.container { max-width: 1080px; width: 100%; margin: 0 auto; padding: 24px 20px 48px; flex: 1; }
.footer { text-align: center; color: var(--muted); font-size: 13px; padding: 16px; border-top: 1px solid var(--line); background: var(--card); }
h1 { font-size: 26px; letter-spacing: -.02em; margin: 6px 0 18px; }
h2 { font-size: 18px; margin: 26px 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.muted { color: var(--muted); font-size: 13px; }
.btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-weight: 700; padding: 10px 18px; border-radius: 10px; cursor: pointer; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: .45; cursor: default; }
input, select { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; width: 100%; background: #fff; }
label { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin: 0 0 12px; }
.auth-box { max-width: 420px; margin: 40px auto; }
.auth-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.pill { padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; display: inline-block; }
.pill.booked { background: #e8f0fe; color: #1a73e8; }
.pill.done { background: var(--ok-bg); color: var(--ok); }
.pill.cancelled { background: var(--no-bg); color: var(--no); }
.pill.free { background: var(--bg); color: var(--muted); }
.slotgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.slot { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-size: 13px; background: var(--card); }
.slot b { display: block; }
.slot .instr { color: var(--muted); }
.day-sep { font-weight: 800; margin: 18px 0 8px; font-size: 14px; color: var(--muted); text-transform: capitalize; }
.skillrow { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.skillrow:last-child { border-bottom: 0; }
.skillrow .t { flex: 1; font-size: 14px; }
.tl { display: flex; gap: 6px; }
.tl button { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--line); background: var(--card); cursor: pointer; padding: 0; }
.tl button.l0 { background: #d93025; border-color: #d93025; }
.tl button.l1 { background: #f4b400; border-color: #f4b400; }
.tl button.l2 { background: #0f9d58; border-color: #0f9d58; }
.tl button.sel-l0 { outline: 3px solid #d93025; }
.tl button.sel-l1 { outline: 3px solid #f4b400; }
.tl button.sel-l2 { outline: 3px solid #0f9d58; }
.prog { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; width: 110px; }
.prog i { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.stat { font-size: 26px; font-weight: 800; }
.statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 6px; }
.statgrid .card { margin: 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
td, th { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 20px; border-radius: 10px; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 50; max-width: 90vw; }
#toast.show { opacity: .95; }
.weekpick { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.weekpick label { display: flex; gap: 5px; align-items: center; font-size: 13px; font-weight: 600; color: var(--ink); margin: 0; cursor: pointer; border: 1px solid var(--line); padding: 6px 10px; border-radius: 8px; }
.weekpick input { width: auto; accent-color: var(--primary); }
.inline-inputs { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.inline-inputs label { margin: 0; }
.inline-inputs input, .inline-inputs select { width: auto; }
.drawer-backdrop { position: fixed; inset: 0; background: rgba(16,24,43,.35); z-index: 40; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 92vw); background: var(--card); z-index: 50; padding: 22px; box-shadow: -12px 0 32px rgba(16,24,43,.12); overflow-y: auto; }
.drawer h3 { margin: 0 0 6px; }
.drawer .hint { color: var(--muted); font-size: 13px; margin: 0 0 16px; }
.drawer .btn { margin-right: 8px; }
.drawer-actions { margin-top: 10px; }