/* ============================================================================
   FleetFixer learning games, shared stylesheet
   ----------------------------------------------------------------------------
   Self-contained Pine & Citrus re-skin for the 9 learning game pages
   (flags, points-of-sail, rules-challenge, safety-scenario, boat-parts,
   weather, buoyage, nav-lights, phonetic).

   These pages do NOT load marketing-tokens.css, so every token lives here.

   Themable variable NAMES are preserved exactly so theme.js can override them
   per user at runtime via documentElement.style.setProperty(). Only their
   default VALUES have been re-skinned to the brand palette.

   Real-world colours that encode learning content (international code flag
   fills, IALA buoyage red/green, navigation-light colours) live inside SVG
   strings and inline light-dot rules and are intentionally left untouched.
   ========================================================================== */

:root{
  /* Deep pine and bark neutrals (was the navy ink ramp) */
  --ink-950:#070F0C;--ink-900:#0E1714;--ink-800:#14201B;--ink-700:#26382F;--ink-600:#3A423A;--ink-500:#5A6B61;--ink-400:#7C8A80;--ink-300:#9DB0A6;--ink-200:#CDD8C6;--ink-150:#DCE6DC;--ink-100:#E1E9DD;--ink-50:#F1F5EF;
  /* Sea-green and pine accent ramp (the one vivid signal colour) */
  --accent-50:#EDF8F2;--accent-100:#D6F1E3;--accent-200:#A9E3C9;--accent-300:#6FD0A8;--accent-400:#3FB680;--accent-500:#2FA06E;--accent-600:#15614A;--accent-700:#0F4D3A;--accent-800:#0A3A2B;--accent-900:#06281D;
  /* Brass (premium / upgrade only) */
  --brass-600:#B5852F;--brass-100:#F3E7C8;--brass-50:#F9F2E0;
  /* Brand semantic aliases (legacy names kept so existing markup + theme.js keep working) */
  --accent:#15614A;--accent-strong:#0F4D3A;--accent-2:#1C7A5C;--accent-light:#3FB680;--accent-weak:#EDF8F2;
  --brand-gradient:linear-gradient(135deg,#0F4D3A 0%,#1C7A5C 55%,#3FB680 100%);
  --brand-gradient-soft:linear-gradient(135deg,#1C7A5C 0%,#6FD0A8 110%);
  --accent-glow:#6FD0A8;--hero-dark:#0A1410;
  /* Surfaces + neutrals */
  --bg:#F1F5EF;--panel:#FFFFFF;--surface-2:#E8F0E6;--stroke:#E1E9DD;--stroke-strong:#CDD8C6;
  --text:#14201B;--text-strong:#0A1410;--muted:#5A6B61;--muted-2:#7C8A80;--text-subtle:#9AA095;
  /* Dark chrome (Pine-native premium app shell) */
  --chrome-bg:#0E1714;--chrome-elevated:#16241C;--chrome-border:rgba(180,212,196,.14);--chrome-text:#EAF3EC;--chrome-text-muted:#9DB0A6;--chrome-active-bg:rgba(63,182,128,.16);--chrome-active-text:#6FD0A8;
  /* Radii (tight, precise) */
  --radius-sm:6px;--radius:8px;--radius-lg:12px;--radius2:12px;--radius-pill:999px;
  /* Elevation (restrained, bark-tinted) */
  --shadow-xs:0 1px 2px rgba(20,32,27,.06);--shadow-sm:0 1px 3px rgba(20,32,27,.08),0 1px 2px rgba(20,32,27,.04);--shadow:0 6px 16px rgba(20,32,27,.10);--shadow-lg:0 18px 40px rgba(20,32,27,.18);
  /* Focus ring (accent-tinted) */
  --focus-ring:0 0 0 3px rgba(46,155,121,.34);
  /* Status */
  --danger:#E5544B;--danger-50:#FBEAE9;--warning:#E8A33D;--warning-50:#FBF3E2;--success:#1FA971;--success-50:#E7F5EE;--info:#3FA6B8;--info-50:#EAF2FB;
  /* Game tokens (themable at runtime by theme.js; brand defaults here) */
  --game-gradient:linear-gradient(135deg,#0F4D3A 0%,#1C7A5C 55%,#3FB680 100%);--game-accent:#15614A;--game-accent-2:#1C7A5C;--game-bg:#F1F5EF;--game-correct:#1FA971;--game-wrong:#E5544B;
  /* Motion + spacing (4/8 rhythm) */
  --ease:cubic-bezier(.2,.6,.2,1);--dur-1:.12s;--dur-2:.18s;--dur-3:.28s;
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;
}

/* ---------------------------------------------------------------------------
   Reset + base
   --------------------------------------------------------------------------- */
*{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--game-bg,var(--bg));
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}

/* ---------------------------------------------------------------------------
   Top bar, re-skinned to the navy app shell
   --------------------------------------------------------------------------- */
.topbar{
  background:var(--chrome-bg);
  color:var(--chrome-text);
  border-bottom:1px solid var(--chrome-border);
  padding:0 var(--space-5);
  height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.topbar-left{display:flex;align-items:center;gap:var(--space-3)}
.topbar-logo{height:32px}
.topbar-title{font-size:14px;font-weight:700;color:var(--chrome-text)}
.topbar-btn{
  font-size:12px;
  font-weight:600;
  color:var(--chrome-text-muted);
  text-decoration:none;
  padding:7px 14px;
  border-radius:var(--radius);
  border:1px solid var(--chrome-border);
  background:transparent;
  transition:border-color var(--dur-2) var(--ease),color var(--dur-2) var(--ease),background var(--dur-2) var(--ease);
}
.topbar-btn:hover{
  border-color:var(--chrome-active-text);
  color:var(--chrome-text);
  background:var(--chrome-active-bg);
}

/* ---------------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------------- */
.container{max-width:600px;margin:0 auto;padding:var(--space-6)}

.card{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--radius-lg);
  padding:var(--space-6);
  margin-bottom:var(--space-4);
  box-shadow:var(--shadow-sm);
}

/* ---------------------------------------------------------------------------
   Game header (instant-quiz variant)
   --------------------------------------------------------------------------- */
.game-header{text-align:center;margin-bottom:var(--space-5)}
.game-header h1{font-size:22px;font-weight:900;letter-spacing:-.02em;margin-bottom:var(--space-1);color:var(--text-strong)}
.game-header p{font-size:13px;color:var(--muted)}

/* ---------------------------------------------------------------------------
   Progress bar
   --------------------------------------------------------------------------- */
.progress-bar{
  height:6px;
  border-radius:var(--radius-pill);
  background:var(--stroke-strong);
  margin-bottom:var(--space-5);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  background:var(--game-gradient);
  border-radius:var(--radius-pill);
  transition:width .4s var(--ease);
}

.question-num{
  font-size:12px;
  font-weight:700;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.5px;
  margin-bottom:var(--space-2);
}
.question-text{font-size:18px;font-weight:800;margin-bottom:var(--space-5);line-height:1.4;color:var(--text-strong)}

/* ---------------------------------------------------------------------------
   Diagram + media hosts (flags, points-of-sail, boat-parts, buoyage,
   nav-lights, rules-challenge)
   --------------------------------------------------------------------------- */
.flag-display{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:var(--space-6);
  margin-bottom:var(--space-4);
}
.flag-display svg{max-width:120px;max-height:150px}

.buoy-display{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:var(--space-6);
  margin-bottom:var(--space-4);
}
.buoy-display svg{max-width:120px;max-height:180px}

.diagram-wrap{
  position:relative;
  max-width:500px;
  margin:0 auto var(--space-5);
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.diagram-wrap svg{width:100%;height:auto;display:block}

/* points-of-sail hosts a transparent compass diagram directly on the card:
   narrower than the boxed diagram host and without a panel frame. */
#diagramWrap{
  max-width:320px;
  background:none;
  border:none;
  border-radius:0;
  overflow:visible;
}

.hotspot{cursor:pointer;transition:opacity var(--dur-2) var(--ease)}
.hotspot:hover{opacity:.8}
.hotspot.highlight{animation:pulse-spot 1s ease-in-out infinite}
@keyframes pulse-spot{0%,100%{r:12}50%{r:16}}

/* Night sky stage for navigation lights.
   The light-dot colour rules below intentionally keep their real-world
   navigation-light colours and must not be re-skinned. */
.lights-display{
  width:100%;
  aspect-ratio:16/9;
  border-radius:var(--radius-lg);
  position:relative;
  margin-bottom:var(--space-5);
  overflow:hidden;
  background:linear-gradient(180deg,#050810 0%,#0a1020 60%,#101830 100%);
}
.lights-display::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1px 1px at 10% 15%,rgba(255,255,255,.6),transparent),
    radial-gradient(1px 1px at 25% 8%,rgba(255,255,255,.4),transparent),
    radial-gradient(1px 1px at 42% 22%,rgba(255,255,255,.5),transparent),
    radial-gradient(1px 1px at 58% 12%,rgba(255,255,255,.3),transparent),
    radial-gradient(1px 1px at 72% 18%,rgba(255,255,255,.5),transparent),
    radial-gradient(1px 1px at 85% 6%,rgba(255,255,255,.4),transparent),
    radial-gradient(1px 1px at 15% 30%,rgba(255,255,255,.3),transparent),
    radial-gradient(1px 1px at 90% 28%,rgba(255,255,255,.35),transparent),
    radial-gradient(1px 1px at 35% 5%,rgba(255,255,255,.5),transparent),
    radial-gradient(1px 1px at 65% 25%,rgba(255,255,255,.3),transparent);
  pointer-events:none;
}
.lights-display::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:30%;
  background:linear-gradient(180deg,#080e1e 0%,#0c1428 100%);
  border-top:1px solid rgba(255,255,255,.04);
  pointer-events:none;
}
.horizon-line{position:absolute;bottom:30%;left:0;right:0;height:1px;background:rgba(255,255,255,.06);z-index:1}
.light-reflection{
  position:absolute;width:3px;border-radius:50%;opacity:.15;
  filter:blur(2px);pointer-events:none;z-index:1;
}
.light-dot{
  position:absolute;border-radius:50%;z-index:2;
  box-shadow:0 0 16px 6px currentColor, 0 0 40px 10px currentColor;
}
.light-dot.large{width:16px;height:16px}
.light-dot.small{width:10px;height:10px}
.light-dot:not(.large):not(.small){width:12px;height:12px}
/* Real-world navigation-light colours, content not chrome, do not re-skin. */
.light-dot.red{color:#ff3030;background:#ff3030}
.light-dot.green{color:#30ff30;background:#30ff30}
.light-dot.white{color:#ffffee;background:#ffffee}
.light-dot.yellow{color:#ffdd00;background:#ffdd00}

/* Scenario diagram host (rules-challenge setup-first variant) */
.scenario-diagram{
  text-align:center;
  max-width:320px;
  margin:0 auto var(--space-4);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.scenario-diagram svg{
  display:block;
  width:100%;
  height:auto;
  border-radius:var(--radius-lg);
  border:1px solid var(--stroke);
}

/* ---------------------------------------------------------------------------
   Prompt / question copy
   --------------------------------------------------------------------------- */
.prompt{font-size:18px;font-weight:800;text-align:center;margin-bottom:var(--space-4);line-height:1.4;color:var(--text-strong)}

/* ---------------------------------------------------------------------------
   Multiple-choice options (instant-quiz + rules-challenge)
   --------------------------------------------------------------------------- */
.options{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:500px){.options{grid-template-columns:1fr}}

.option{
  padding:14px 16px;
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:var(--panel);
  cursor:pointer;
  font-size:14px;
  font-weight:700;
  transition:border-color var(--dur-2) var(--ease),background var(--dur-2) var(--ease),color var(--dur-2) var(--ease),transform var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
  text-align:center;
  color:var(--text);
}
.option:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-xs)}
.option.correct{border-color:var(--success);background:var(--success-50);color:var(--success)}
.option.wrong{border-color:var(--danger);background:var(--danger-50);color:var(--danger);opacity:.85}
.option.disabled{pointer-events:none}

/* rules-challenge stacks options full-width and left-aligns long answers */
.scenario-diagram ~ .options,
.scenario-text ~ .options{grid-template-columns:1fr}

/* ---------------------------------------------------------------------------
   Explanation + feedback panels
   --------------------------------------------------------------------------- */
.explanation{
  margin-top:var(--space-3);
  padding:10px 14px;
  border-radius:var(--radius);
  background:var(--surface-2);
  font-size:13px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
  display:none;
}

.feedback{
  margin-top:14px;
  padding:12px 16px;
  border-radius:var(--radius);
  background:var(--surface-2);
  font-size:13px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
  display:none;
}

/* ---------------------------------------------------------------------------
   Next button (flat accent fill, not a gradient)
   --------------------------------------------------------------------------- */
.next-btn{
  display:none;
  margin:var(--space-4) auto 0;
  padding:12px 32px;
  border:none;
  border-radius:var(--radius);
  background:var(--accent);
  color:#fff;
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  font-family:inherit;
  transition:background var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.next-btn:hover{background:var(--accent-strong);box-shadow:var(--shadow)}

/* ---------------------------------------------------------------------------
   Generic buttons
   --------------------------------------------------------------------------- */
.btn{
  padding:12px 24px;
  border-radius:var(--radius);
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  font-family:inherit;
  border:none;
  transition:background var(--dur-1) var(--ease),border-color var(--dur-1) var(--ease),color var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-strong);box-shadow:var(--shadow)}
/* rules-challenge start button spans the full setup card width */
#startBtn{width:100%}
.btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--stroke)}
.btn-secondary:hover{border-color:var(--stroke-strong);color:var(--text-strong)}

/* ---------------------------------------------------------------------------
   Result card. The big score numerals keep a deliberate brand gradient accent.
   --------------------------------------------------------------------------- */
.result-card{text-align:center;padding:var(--space-8)}
.result-card .score{
  font-size:48px;
  font-weight:900;
  background:var(--brand-gradient);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}
.result-card .big-score{
  font-size:56px;
  font-weight:900;
  background:var(--brand-gradient);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}
.result-card .score-label{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:var(--space-4)}
.result-card .score-sub{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:var(--space-4)}
.result-card .score-msg{font-size:16px;font-weight:800;margin-bottom:var(--space-5);color:var(--text-strong)}
.result-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* ===========================================================================
   SETUP-FIRST VARIANT (rules-challenge, safety-scenario)
   =========================================================================== */

/* Setup header */
.setup-header{text-align:center;margin-bottom:var(--space-6)}
.setup-header h1{font-size:24px;font-weight:900;margin-bottom:6px;color:var(--text-strong)}
.setup-header p{font-size:13px;color:var(--muted);line-height:1.5}
.setup-header i{font-size:40px;color:var(--accent);display:block;margin-bottom:10px}
/* safety-scenario keeps its warning triangle in the danger status colour */
.setup-header i.fa-triangle-exclamation{color:var(--danger)}

/* Form fields */
.field{margin-bottom:var(--space-4)}
.field label{display:block;font-size:12px;font-weight:600;margin-bottom:5px;color:var(--muted)}
.field input,.field select{
  width:100%;
  padding:11px 14px;
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  font-family:inherit;
  font-size:14px;
  color:var(--text);
  background:var(--panel);
  transition:border-color var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:var(--focus-ring);
}

/* Round header + inline score read-out */
.round-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-4)}
.round-label{font-size:13px;font-weight:700;color:var(--muted)}
.score-display{display:flex;gap:var(--space-4)}
.score-item{text-align:center}
.score-item .sv{font-size:24px;font-weight:900;color:var(--accent)}
.score-item .sl{font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase}
.score-bar{display:flex;justify-content:center;gap:var(--space-5);margin-bottom:var(--space-4)}

/* Scenario copy (rules-challenge) */
.scenario-text{font-size:16px;font-weight:800;line-height:1.5;margin-bottom:var(--space-5);color:var(--text-strong)}
.scenario-context{font-size:13px;color:var(--muted);font-weight:600;margin-bottom:var(--space-3);font-style:italic}

/* Scene copy (safety-scenario) */
.scene-stage{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--accent);margin-bottom:var(--space-2)}
.scene-text{font-size:16px;font-weight:700;line-height:1.6;margin-bottom:var(--space-5);color:var(--text-strong)}
.scene-context{
  font-size:13px;
  color:var(--muted);
  font-weight:600;
  margin-bottom:var(--space-4);
  padding:10px 14px;
  border-radius:var(--radius);
  background:var(--surface-2);
  border-left:3px solid var(--accent);
}

/* Judgement choices (safety-scenario) */
.choices{display:grid;gap:10px}
.choice{
  padding:16px;
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:var(--panel);
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  transition:border-color var(--dur-2) var(--ease),background var(--dur-2) var(--ease),transform var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease),opacity var(--dur-2) var(--ease);
  text-align:left;
  line-height:1.5;
  color:var(--text);
}
.choice:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-xs)}
.choice.selected{border-color:var(--accent);background:var(--accent-weak)}
.choice.best{border-color:var(--success);background:var(--success-50)}
.choice.ok{border-color:var(--warning);background:var(--warning-50)}
.choice.poor{border-color:var(--danger);background:var(--danger-50);opacity:.8}
.choice.disabled{pointer-events:none}
.choice-label{font-size:11px;font-weight:800;text-transform:uppercase;margin-top:6px;display:none}
.choice.best .choice-label,.choice.ok .choice-label,.choice.poor .choice-label{display:block}
.choice.best .choice-label{color:var(--success)}
.choice.ok .choice-label{color:var(--warning)}
.choice.poor .choice-label{color:var(--danger)}

/* Progress dots (safety-scenario) */
.progress-dots{display:flex;justify-content:center;gap:6px;margin-bottom:var(--space-5)}
.progress-dot{width:10px;height:10px;border-radius:50%;background:var(--stroke-strong)}
.progress-dot.done{background:var(--success)}
.progress-dot.current{background:var(--accent);width:24px;border-radius:5px}
.progress-dot.partial{background:var(--warning)}
.progress-dot.missed{background:var(--danger)}

/* Scenario picker list (safety-scenario results) */
.scenario-list{display:grid;gap:10px;margin-top:var(--space-4)}
.scenario-card{
  padding:14px;
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:var(--panel);
  cursor:pointer;
  transition:border-color var(--dur-1) var(--ease),transform var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
  text-align:left;
}
.scenario-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-xs)}
.scenario-card h3{font-size:14px;font-weight:800;margin-bottom:var(--space-1);color:var(--text-strong)}
.scenario-card p{font-size:12px;color:var(--muted)}

/* ---------------------------------------------------------------------------
   Focus + motion
   --------------------------------------------------------------------------- */
*:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-sm)}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important}
}