/* ============================================================================
   Tideline Design System — combined tokens + component styles
   Scoped for Blazor: html/body resets removed (Bootstrap handles those).
   .app-shell → .tl-app-shell   |   .main → .tl-main
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── Color & type tokens ──────────────────────────────────────────────────── */
:root {
  --ink-50:  #F2F5F6;
  --ink-100: #DCE4E6;
  --ink-200: #B8C9CD;
  --ink-300: #8AA5AB;
  --ink-400: #5A7F87;
  --ink-500: #355C66;
  --ink-600: #1F4751;
  --ink-700: #143540;
  --ink-800: #0E2A33;
  --ink-900: #08191F;

  --sand-50:  #FBF8F1;
  --sand-100: #F5EFE3;
  --sand-200: #ECE3CF;
  --sand-300: #DFD2B5;
  --sand-400: #C9B991;
  --sand-500: #B0A074;

  --gold-300: #E0B86A;
  --gold-500: #B8842B;
  --gold-700: #8A5F1A;

  --seafoam-300: #B6E0D2;
  --seafoam-500: #7BC4B0;
  --seafoam-700: #4A8A78;

  --moss-300: #B0CDB6;
  --moss-500: #4A7C59;
  --moss-600: #3C6B4A;
  --moss-700: #2F5A3D;

  --clay-300: #E5BAB3;
  --clay-500: #B85C50;
  --clay-700: #8A3E34;

  --amber-200: #F6E1BC;
  --amber-300: #ECCB8E;
  --amber-500: #C9974A;
  --amber-700: #8E6A30;

  --bg:           var(--sand-100);
  --surface-1:    var(--sand-50);
  --surface-2:    #FFFFFF;
  --surface-sunk: var(--sand-200);

  --fg-1:    var(--ink-800);
  --fg-2:    var(--ink-500);
  --fg-3:    var(--ink-300);
  --fg-on-accent: #FFFFFF;

  --border:        #D9CDB7;
  --border-strong: var(--ink-200);
  --border-focus:  var(--gold-500);

  --accent:        var(--gold-500);
  --accent-hover:  var(--gold-700);
  --accent-soft:   #F1E2C2;

  --gain:    var(--moss-500);
  --gain-bg: #E6EEE7;
  --loss:    var(--clay-500);
  --loss-bg: #F4E0DC;
  --warn:    var(--amber-500);
  --warn-bg: #F6EAD2;
  --info:    var(--ink-500);
  --info-bg: var(--ink-50);

  --scrim:   rgba(14, 42, 51, 0.32);

  --shadow-1: 0 1px 2px rgba(14, 42, 51, 0.04), 0 1px 1px rgba(14, 42, 51, 0.03);
  --shadow-2: 0 4px 12px rgba(14, 42, 51, 0.08), 0 2px 4px rgba(14, 42, 51, 0.04);
  --shadow-3: 0 16px 48px rgba(14, 42, 51, 0.16), 0 4px 12px rgba(14, 42, 51, 0.08);

  --radius-xs:   4px;
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   14px;
  --radius-pill: 999px;

  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;

  --ease:        cubic-bezier(0.2, 0, 0, 1);
  --dur-micro:   160ms;
  --dur-state:   240ms;
  --dur-enter:   360ms;

  --font-display: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --font-sans:    'Geist', ui-sans-serif, system-ui, -apple-system, 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --text-xs:  12px;
  --text-sm:  14px;
  --text-md:  16px;
  --text-lg:  20px;
  --text-xl:  24px;
  --text-2xl: 32px;
  --text-3xl: 44px;
  --text-4xl: 60px;
  --text-5xl: 80px;

  --leading-tight:  1.15;
  --leading-snug:   1.3;
  --leading-normal: 1.5;
  --leading-loose:  1.7;

  --tracking-tight:  -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-caps:   0.12em;
}

[data-theme="dark"] {
  --bg:           #0B1A1F;
  --surface-1:    #102830;
  --surface-2:    #163640;
  --surface-sunk: #0A1418;

  --fg-1: #E6EEF0;
  --fg-2: #8AA5AB;
  --fg-3: #5A7F87;
  --fg-on-accent: #0B1A1F;

  --border:        #1F3640;
  --border-strong: #355C66;
  --border-focus:  var(--seafoam-500);

  --accent:        var(--seafoam-500);
  --accent-hover:  var(--seafoam-300);
  --accent-soft:   #1A3A35;

  --gain:    #7FB78C;
  --gain-bg: #16302A;
  --loss:    #D89089;
  --loss-bg: #3A1F1C;
  --warn:    #E0B86A;
  --warn-bg: #3A2E15;
  --info:    #8AA5AB;
  --info-bg: #14272E;

  --scrim:   rgba(0, 0, 0, 0.5);

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 1px 1px rgba(0, 0, 0, 0.3);
  --shadow-2: 0 4px 12px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-3: 0 16px 48px rgba(0, 0, 0, 0.6), 0 4px 12px rgba(0, 0, 0, 0.4);
}

::selection { background: var(--accent-soft); color: var(--fg-1); }

/* ── Type utility classes ─────────────────────────────────────────────────── */
.t-display  { font-family: var(--font-sans); font-size: var(--text-5xl); line-height: 1.05; letter-spacing: -0.035em; font-weight: 500; color: var(--fg-1); }
.t-h1       { font-family: var(--font-sans); font-size: var(--text-3xl); line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); font-weight: 600; color: var(--fg-1); }
.t-h2       { font-family: var(--font-sans); font-size: var(--text-2xl); line-height: var(--leading-snug); letter-spacing: var(--tracking-tight); font-weight: 600; color: var(--fg-1); }
.t-h3       { font-family: var(--font-sans); font-size: var(--text-xl); line-height: var(--leading-snug); letter-spacing: var(--tracking-tight); font-weight: 600; color: var(--fg-1); }
.t-h4       { font-family: var(--font-sans); font-size: var(--text-lg); line-height: var(--leading-snug); font-weight: 600; color: var(--fg-1); }
.t-body     { font-family: var(--font-sans); font-size: var(--text-md); line-height: var(--leading-normal); font-weight: 400; color: var(--fg-1); }
.t-body-lg  { font-family: var(--font-sans); font-size: var(--text-lg); line-height: var(--leading-normal); font-weight: 400; color: var(--fg-1); }
.t-small    { font-family: var(--font-sans); font-size: var(--text-sm); line-height: var(--leading-normal); color: var(--fg-2); }
.t-xs       { font-family: var(--font-sans); font-size: var(--text-xs); line-height: var(--leading-normal); color: var(--fg-2); }
.t-eyebrow  { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 500; font-variant: small-caps; letter-spacing: var(--tracking-caps); color: var(--fg-2); }
.t-mono     { font-family: var(--font-mono); font-size: var(--text-sm); font-feature-settings: "tnum" 1, "zero" 1; color: var(--fg-1); }
.t-num      { font-family: var(--font-mono); font-feature-settings: "tnum" 1, "zero" 1; color: var(--fg-1); }
.t-display-italic { font-style: italic; }

/* ── App shell ────────────────────────────────────────────────────────────── */
.tl-app-shell {
  display: flex;
  min-height: 100vh;
  background: var(--bg);
  font-family: var(--font-sans);
  color: var(--fg-1);
  -webkit-font-smoothing: antialiased;
}

.tl-app-shell * { box-sizing: border-box; }
.tl-app-shell button { font-family: inherit; }

/* ── Sidebar ──────────────────────────────────────────────────────────────── */
.tl-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--surface-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.tl-sidebar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px 24px;
  color: var(--fg-1);
  text-decoration: none;
}
.tl-sidebar .brand .word {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--fg-1);
}
.tl-sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.tl-sidebar .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--fg-2);
  font-size: 14px;
  cursor: pointer;
  border: none;
  background: transparent;
  text-align: left;
  width: 100%;
  transition: all 160ms var(--ease);
  text-decoration: none;
}
.tl-sidebar .nav-item:hover { background: rgba(14,42,51,0.04); color: var(--fg-1); }
.tl-sidebar .nav-item.active { background: var(--ink-800); color: var(--sand-50); }
.tl-sidebar .nav-item.active svg { color: var(--sand-50); }
.tl-sidebar .nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.tl-sidebar .footer {
  margin-top: auto;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.tl-sidebar .avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ink-200);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--ink-700);
  flex-shrink: 0;
}
.tl-sidebar .who { font-size: 13px; color: var(--fg-1); }
.tl-sidebar .who small { display: block; color: var(--fg-2); font-size: 11px; }

/* ── Main content area ────────────────────────────────────────────────────── */
.tl-main {
  flex: 1;
  padding: 32px 48px 64px;
  max-width: 1280px;
}
.tl-main-narrow { max-width: 1040px; }

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; }
.page-title  { font-family: var(--font-sans); font-size: 32px; line-height: 1.15; margin: 0; font-weight: 600; letter-spacing: -0.025em; color: var(--fg-1); }
.page-sub    { font-size: 14px; color: var(--fg-2); margin: 6px 0 0; }

/* ── Card ─────────────────────────────────────────────────────────────────── */
.card-x { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.card-tight { padding: 16px 20px; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn-x {
  font-size: 14px; font-weight: 500;
  padding: 10px 18px;
  border-radius: 6px; border: 1px solid transparent;
  cursor: pointer;
  transition: all 160ms var(--ease);
  display: inline-flex; align-items: center; gap: 8px;
  white-space: nowrap;
}
.btn-x.primary   { background: var(--ink-800); color: var(--sand-50); }
.btn-x.primary:hover { background: var(--ink-700); }
.btn-x.accent    { background: var(--accent); color: var(--fg-on-accent); }
.btn-x.accent:hover { background: var(--accent-hover); }
.btn-x.secondary { background: transparent; color: var(--fg-1); border-color: var(--border); }
.btn-x.secondary:hover { background: var(--sand-200); }
.btn-x.ghost     { background: transparent; color: var(--fg-1); }
.btn-x.ghost:hover { background: rgba(14,42,51,0.05); }
.btn-x.danger    { background: transparent; color: var(--loss); border-color: var(--clay-300); }
.btn-x.danger:hover { background: var(--loss-bg); }
.btn-x.sm { font-size: 13px; padding: 6px 12px; }
.btn-x.lg { font-size: 16px; padding: 13px 22px; }
.btn-x:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Inputs ───────────────────────────────────────────────────────────────── */
.field-x { margin-bottom: 18px; }
.field-x label { display: block; font-size: 13px; font-weight: 500; color: var(--fg-1); margin-bottom: 6px; }
.field-x .help { font-size: 12px; color: var(--fg-2); margin-top: 6px; }
.input-x {
  width: 100%; font-family: var(--font-sans); font-size: 14px;
  padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface-2); color: var(--fg-1);
  transition: all 160ms var(--ease);
}
.input-x:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-color: var(--accent); }
.input-x.mono  { font-family: var(--font-mono); font-size: 13px; }
.input-x.error { border-color: var(--loss); }

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge-x {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500;
  padding: 3px 10px; border-radius: 999px; border: 1px solid transparent;
}
.badge-x .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-x.running    { background: var(--gain-bg);   color: var(--moss-700);  border-color: var(--moss-300);  }
.badge-x.paused     { background: var(--warn-bg);   color: var(--amber-700); border-color: var(--amber-300); }
.badge-x.stopped    { background: var(--loss-bg);   color: var(--clay-700);  border-color: var(--clay-300);  }
.badge-x.info       { background: var(--info-bg);   color: var(--ink-500);   border-color: var(--ink-100);   }
.badge-x.watching   { background: var(--info-bg);   color: var(--ink-600);   border-color: var(--ink-100);   }
.badge-x.inposition { background: var(--gain-bg);   color: var(--moss-700);  border-color: var(--moss-300);  }
.badge-x.awaiting   { background: var(--warn-bg);   color: var(--amber-700); border-color: var(--amber-300); }
.badge-x.warming    { background: var(--sand-100);  color: var(--ink-500);   border-color: var(--sand-300);  }
.badge-x.paper      { background: var(--sand-200);  color: var(--ink-600);   border-color: var(--border);    }
.badge-x.live       { background: var(--accent-soft); color: var(--accent); border-color: var(--accent);     }

/* ── Numerics ─────────────────────────────────────────────────────────────── */
.num { font-family: var(--font-mono); font-feature-settings: 'tnum' 1, 'zero' 1; }
.pos { color: var(--gain); }
.neg { color: var(--loss); }

/* ── Headings ─────────────────────────────────────────────────────────────── */
.section-h {
  font-family: var(--font-sans); font-size: 20px; font-weight: 600;
  letter-spacing: -0.015em; margin: 0 0 16px; color: var(--fg-1);
}
.eyebrow-x {
  font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--fg-2);
}

/* ── Table ────────────────────────────────────────────────────────────────── */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th {
  text-align: left; font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fg-2); padding: 10px 12px; border-bottom: 1px solid var(--border);
}
.tbl td {
  font-size: 14px; padding: 14px 12px;
  border-bottom: 1px solid var(--border); color: var(--fg-1); vertical-align: middle;
}
.tbl tr:last-child td { border-bottom: none; }
.tbl td.right, .tbl th.right { text-align: right; }

/* ── Segmented control ────────────────────────────────────────────────────── */
.seg {
  display: inline-flex;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
}
.seg button {
  border: none; background: transparent;
  font-size: 13px; padding: 6px 14px; border-radius: 6px;
  cursor: pointer; color: var(--fg-2);
  font-family: var(--font-sans);
  transition: all 160ms var(--ease);
}
.seg button.active {
  background: var(--surface-2); color: var(--fg-1);
  box-shadow: 0 1px 2px rgba(14,42,51,0.06);
}

/* ── Pair cell ────────────────────────────────────────────────────────────── */
.pair-cell { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.pair-cell img { width: 22px; height: 22px; }

/* ── Topbar ───────────────────────────────────────────────────────────────── */
.topbar { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }

/* ── Strategy cards ───────────────────────────────────────────────────────── */
.strat-card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px;
  padding: 22px; display: flex; flex-direction: column; gap: 10px;
  cursor: pointer; transition: all 160ms var(--ease);
}
.strat-card:hover { background: var(--sand-200); border-color: var(--ink-200); }
.strat-card .name { font-family: var(--font-sans); font-size: 18px; font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; color: var(--fg-1); }
.strat-card .desc { font-size: 13px; line-height: 1.5; color: var(--fg-2); margin: 0; min-height: 40px; }
.strat-card .meta-row { display: flex; gap: 16px; font-size: 12px; color: var(--fg-2); padding-top: 10px; border-top: 1px solid var(--border); margin-top: auto; }
.strat-card .meta-row b { color: var(--fg-1); font-weight: 500; }

/* ── Modal ──────────────────────────────────────────────────────────────────
   Tideline-prefixed names because Bootstrap (loaded earlier) already owns
   `.modal` and would force display:none + a 100% × 100% stretch on us. */
.tl-modal-scrim {
  position: fixed; inset: 0; background: var(--scrim); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; z-index: 1100;
}
.tl-modal {
  position: relative;
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow-3); width: 480px; max-width: calc(100vw - 48px); padding: 28px;
  display: block;
}
.tl-modal h3 { font-family: var(--font-sans); font-size: 22px; margin: 0 0 8px; font-weight: 600; letter-spacing: -0.02em; }

/* ── List rows (settings) ─────────────────────────────────────────────────── */
.list-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.list-row:last-child { border-bottom: none; }
.list-row .left { display: flex; align-items: center; gap: 14px; }
.list-row .name { font-size: 14px; font-weight: 500; }
.list-row .desc { font-size: 12px; color: var(--fg-2); margin-top: 2px; }

/* ── Step indicator ───────────────────────────────────────────────────────── */
.steps { display: flex; gap: 8px; margin-bottom: 32px; max-width: 320px; }
.step-dot { flex: 1; height: 3px; border-radius: 999px; background: var(--border); }
.step-dot.done    { background: var(--accent); }
.step-dot.current { background: var(--ink-800); }

/* ── Backtest progress bar animation ─────────────────────────────────────── */
@keyframes tl-progress { from { width: 0%; } to { width: 100%; } }
.tl-progress-bar {
  height: 100%; background: var(--accent); border-radius: 999px;
  animation: tl-progress 1.8s linear forwards;
}

/* ── Toggle ───────────────────────────────────────────────────────────────── */
.toggle-x {
  position: relative; width: 36px; height: 20px;
  background: var(--ink-100); border-radius: 999px;
  transition: background 160ms; cursor: pointer; border: none; padding: 0; flex-shrink: 0;
}
.toggle-x::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; background: white; border-radius: 50%;
  transition: left 160ms var(--ease); box-shadow: 0 1px 2px rgba(14,42,51,0.15);
}
.toggle-x.on { background: var(--ink-800); }
.toggle-x.on::after { left: 18px; }

/* ── Explain toggle (Show/Hide details) ──────────────────────────────────── */
.explain-toggle {
  font-size: 11px; font-weight: 500; letter-spacing: 0.02em;
  padding: 3px 9px; border-radius: 4px;
  border: 1px solid var(--border); background: var(--surface-sunk);
  color: var(--fg-2); cursor: pointer; display: inline-flex; align-items: center;
  gap: 5px; line-height: 1.2; white-space: nowrap; font-family: inherit;
}
.explain-toggle:hover { background: var(--surface-1); border-color: var(--border-strong); }

/* ── Auth shell ───────────────────────────────────────────────────────────── */
.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-left {
  background: var(--ink-800);
  color: var(--sand-50);
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.auth-left .brand-mark { display: flex; align-items: center; gap: 12px; }
.auth-left .brand-mark .word { font-family: var(--font-display); font-size: 28px; }
.auth-left .blurb { font-family: var(--font-display); font-size: 44px; line-height: 1.1; max-width: 460px; margin: 0; }
.auth-left .blurb em { color: var(--seafoam-300); font-style: italic; }
.auth-left .footer-note { font-size: 13px; color: var(--ink-200); }
.auth-left .horizon {
  position: absolute;
  left: 0; right: 0; bottom: 30%;
  opacity: 0.18;
  pointer-events: none;
  width: 100%;
  height: 200px;
}
.auth-right {
  background: var(--bg);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-form { width: 100%; max-width: 380px; }
.auth-form .auth-title { font-family: var(--font-display); font-size: 32px; font-weight: 500; color: var(--fg-1); margin: 0 0 8px; }
.auth-form .auth-sub   { color: var(--fg-2); font-size: 14px; margin: 0 0 28px; }

@media (max-width: 800px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-left  { display: none; }
  .auth-right { padding: 32px 20px; }
}

/* ── Password strength meter ─────────────────────────────────────────────── */
.pw-meter { margin-top: 8px; }
.pw-meter-bars { display: flex; gap: 4px; }
.pw-meter-bar { flex: 1; height: 3px; border-radius: 2px; background: var(--sand-200); transition: background 0.15s; }
.pw-meter-bar.lvl-1 { background: var(--loss); }
.pw-meter-bar.lvl-2 { background: #B6873A; }
.pw-meter-bar.lvl-3 { background: #7A8E4A; }
.pw-meter-bar.lvl-4 { background: var(--moss-700); }
.pw-meter-label { font-size: 11px; margin-top: 6px; line-height: 1.3; }

/* ── Skipped-signals toggle (history page) ───────────────────────────────── */
.tl-skipped-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-1);
  cursor: pointer;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  user-select: none;
}
.tl-skipped-toggle input { margin: 0; }
.tl-skipped-toggle:has(input:checked) { background: var(--sand-200); }

/* ── Generic modal (tl- prefix to avoid Bootstrap `.modal` collision) ────── */
.tl-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(14, 42, 51, 0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.tl-modal-panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(14, 42, 51, 0.2);
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}