/* ================================================================
   T-056 — TMA Design Tokens (v2)
   Cite: docs/STRATEGY/2026-04-25-design-audit/13_BRAND_SYSTEM.md §3 + §4

   This file is the canonical token system for prototype-v2. New
   components (built per T-057) consume only these tokens. Existing
   inline styles continue to use the legacy --primary / --surface
   variables in index.html until each per-screen ticket migrates
   them. This isolates the new system without breaking old code.

   Naming: all tokens are prefixed --tma-* to namespace cleanly
   against the existing variables. Classes are prefixed .tma- so
   they don't collide.

   Acceptance test (per audit §6):
   - ≤7 distinct font sizes used in new components
   - ≤8 distinct spacing values
   - ≤3 distinct radii
   - brand-primary referenced from one place (this file)
   ================================================================ */

:root {
  /* ── Type scale (1.25 ratio, anchored at 16px) ───────────── */
  --tma-text-xs:      12px;
  --tma-text-sm:      14px;
  --tma-text-base:    16px;
  --tma-text-lg:      20px;
  --tma-text-xl:      25px;
  --tma-text-2xl:     32px;
  --tma-text-display: 48px;

  /* Weights — three only */
  --tma-weight-regular: 400;
  --tma-weight-medium:  500;
  --tma-weight-bold:    700;

  /* Line heights */
  --tma-line-tight:  1.2;
  --tma-line-snug:   1.35;
  --tma-line-normal: 1.5;

  /* Letter spacing */
  --tma-tracking-tight:  -0.02em;
  --tma-tracking-normal: 0;
  --tma-tracking-wide:   0.04em;

  /* ── Spacing scale (4-pt base) ────────────────────────────── */
  --tma-space-1:  4px;
  --tma-space-2:  8px;
  --tma-space-3:  12px;
  --tma-space-4:  16px;
  --tma-space-6:  24px;
  --tma-space-8:  32px;
  --tma-space-12: 48px;

  /* ── Colour scale ─────────────────────────────────────────── */
  --tma-brand-primary:      #0C71C3;
  --tma-brand-primary-soft: rgba(12, 113, 195, 0.10);
  --tma-brand-primary-rgb:  12, 113, 195;
  --tma-brand-accent:       #FFB000;
  --tma-brand-accent-soft:  rgba(255, 176, 0, 0.12);

  --tma-surface-base: #0A0A0A;
  --tma-surface-1:    #141414;
  --tma-surface-2:    #1F1F1F;
  --tma-surface-3:    #2B2B2B;

  --tma-text-primary:   #FFFFFF;
  --tma-text-secondary: rgba(255, 255, 255, 0.65);
  --tma-text-tertiary:  rgba(255, 255, 255, 0.40);
  --tma-text-disabled:  rgba(255, 255, 255, 0.20);

  --tma-success: #34D399;
  --tma-warning: #F59E0B;
  --tma-danger:  #EF4444;

  /* Border tints */
  --tma-border-soft:    rgba(255, 255, 255, 0.06);
  --tma-border-default: rgba(255, 255, 255, 0.10);
  --tma-border-strong:  rgba(255, 255, 255, 0.18);

  /* ── Radius scale (3 only) ────────────────────────────────── */
  --tma-radius-sm: 8px;
  --tma-radius-md: 16px;
  --tma-radius-lg: 24px;

  /* ── Shadow scale (3 only) ────────────────────────────────── */
  --tma-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
  --tma-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.40);
  --tma-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);

  /* ── Motion scale ─────────────────────────────────────────── */
  --tma-motion-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --tma-motion-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --tma-motion-slow: 450ms cubic-bezier(0.16, 1, 0.3, 1);
  --tma-motion-epic: 800ms cubic-bezier(0.22, 1, 0.36, 1);

  /* ── Tier accent colours (per 12_CELEBRATION + 18_DIRECTION_C) ── */
  --tma-tier-initiate: rgba(255, 255, 255, 0.50);
  --tma-tier-athlete:  var(--tma-brand-primary);
  --tma-tier-veteran:  var(--tma-brand-accent);
  --tma-tier-century:  #B91C1C;
}

/* ================================================================
   prefers-reduced-motion respect (T-071 — done)
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  :root {
    --tma-motion-fast: 0ms linear;
    --tma-motion-base: 0ms linear;
    --tma-motion-slow: 0ms linear;
    --tma-motion-epic: 0ms linear;
  }
  /* Stop animations and transitions in legacy components too */
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ================================================================
   T-060 — Cinematic Tier Graduation Animation
   Cite: 12_CELEBRATION_ARCHITECTURE.md §6 + 18_DIRECTION_C
   On tier graduation (Initiate→Athlete at session 5, Athlete→Veteran
   at session 30, Veteran→Century at session 100), the EPIC overlay
   gets a cinematic motion: gradient zoom-out + tier-seal scale-in
   + radial light burst. Triggered by adding .tma-tier-cinematic class
   to a tma-overlay-epic. Honoured by prefers-reduced-motion. */
.tma-overlay-epic.tma-tier-cinematic {
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 176, 0, 0.18) 0%, rgba(0, 0, 0, 0) 50%),
    var(--tma-surface-base);
  animation: tma-tier-cinematic-bg 1200ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.tma-overlay-epic.tma-tier-cinematic > * {
  animation: tma-tier-cinematic-content 800ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
  transform-origin: center;
}
@keyframes tma-tier-cinematic-bg {
  0% { background-size: 50% 50%; }
  100% { background-size: 200% 200%; }
}
@keyframes tma-tier-cinematic-content {
  0% { transform: scale(0.7); opacity: 0; }
  60% { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.tma-tier-cinematic-seal {
  display: inline-block;
  font-size: 64px;
  margin-bottom: var(--tma-space-4);
  animation: tma-tier-seal-pulse 2s ease-in-out infinite;
  text-shadow: 0 0 24px rgba(255, 176, 0, 0.45);
}
@keyframes tma-tier-seal-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
  .tma-overlay-epic.tma-tier-cinematic,
  .tma-overlay-epic.tma-tier-cinematic > *,
  .tma-tier-cinematic-seal {
    animation: none !important;
    transform: none !important;
  }
}

/* ================================================================
   T-073 — Disable pinch-zoom in workout flow
   Cite: docs/STRATEGY/2026-04-25-design-audit/14_MOBILE_FIRST_AUDIT.md §2
   The workout player and feedback screens have no zoomable content.
   Pinch is forbidden per gesture vocabulary. touch-action restricts
   the gesture surface to scroll only.
   ================================================================ */
#s-player,
#s-feedback,
#s-pause,
#s-rest,
#s-cantdo {
  touch-action: pan-x pan-y;
}

/* ================================================================
   Component classes (consumed by T-057 components.js factories)
   ================================================================ */

/* ── Card ─────────────────────────────────────────────────────── */
.tma-card {
  background: var(--tma-surface-1);
  border: 1px solid var(--tma-border-soft);
  border-radius: var(--tma-radius-md);
  padding: var(--tma-space-4);
  color: var(--tma-text-primary);
}
.tma-card--hero {
  background: var(--tma-surface-1);
  border-radius: var(--tma-radius-lg);
  padding: var(--tma-space-6);
  box-shadow: var(--tma-shadow-md);
}

/* ── Buttons ──────────────────────────────────────────────────── */
.tma-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--tma-space-4);
  border-radius: var(--tma-radius-md);
  font-size: var(--tma-text-base);
  font-weight: var(--tma-weight-bold);
  letter-spacing: var(--tma-tracking-tight);
  border: 0;
  cursor: pointer;
  transition: transform var(--tma-motion-fast), background var(--tma-motion-fast);
  font-family: inherit;
}
.tma-btn:active { transform: scale(0.98); }

.tma-btn--primary {
  background: var(--tma-brand-primary);
  color: var(--tma-text-primary);
}
.tma-btn--primary:hover { background: #0a5fa3; }

.tma-btn--secondary {
  background: transparent;
  color: var(--tma-text-primary);
  border: 1px solid var(--tma-border-strong);
}
.tma-btn--secondary:hover { background: var(--tma-surface-2); }

.tma-btn--tertiary {
  background: transparent;
  color: var(--tma-text-secondary);
  min-height: 32px;
  padding: 0 var(--tma-space-2);
  font-weight: var(--tma-weight-medium);
}
.tma-btn--tertiary:hover { color: var(--tma-text-primary); }

.tma-btn--full { width: 100%; }

/* ── Pill ────────────────────────────────────────────────────── */
.tma-pill {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 var(--tma-space-3);
  border-radius: var(--tma-radius-sm);
  background: var(--tma-surface-2);
  border: 1px solid var(--tma-border-soft);
  color: var(--tma-text-secondary);
  font-size: var(--tma-text-sm);
  font-weight: var(--tma-weight-medium);
  cursor: pointer;
  transition: all var(--tma-motion-fast);
}
.tma-pill--selected {
  background: var(--tma-brand-primary-soft);
  border-color: var(--tma-brand-primary);
  color: var(--tma-text-primary);
}

/* ── Badges ──────────────────────────────────────────────────── */
.tma-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--tma-space-1);
  padding: 2px var(--tma-space-2);
  border-radius: var(--tma-radius-sm);
  font-size: var(--tma-text-xs);
  font-weight: var(--tma-weight-bold);
  letter-spacing: var(--tma-tracking-wide);
  text-transform: uppercase;
}
.tma-badge--tier {
  background: var(--tma-brand-accent-soft);
  color: var(--tma-brand-accent);
  border: 1px solid var(--tma-brand-accent-soft);
}
.tma-badge--status-success { background: rgba(52, 211, 153, 0.12); color: var(--tma-success); }
.tma-badge--status-warning { background: rgba(245, 158, 11, 0.12); color: var(--tma-warning); }
.tma-badge--status-danger  { background: rgba(239, 68, 68, 0.12);  color: var(--tma-danger); }

/* ── Ribbon (AMBIENT celebration tier) ───────────────────────── */
.tma-ribbon {
  position: fixed;
  top: env(safe-area-inset-top, 0);
  left: 0;
  right: 0;
  margin: 0 auto;
  max-width: 480px;
  background: var(--tma-surface-2);
  border-bottom: 1px solid var(--tma-border-soft);
  padding: var(--tma-space-3) var(--tma-space-4);
  font-size: var(--tma-text-sm);
  color: var(--tma-text-secondary);
  z-index: 200;
  animation: tma-ribbon-in var(--tma-motion-base) forwards;
  display: flex;
  align-items: center;
  gap: var(--tma-space-2);
}
@keyframes tma-ribbon-in {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ── Overlay (FOCUS celebration tier) ────────────────────────── */
.tma-overlay-focus {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}
.tma-overlay-focus__sheet {
  width: 100%;
  background: var(--tma-surface-1);
  border-radius: var(--tma-radius-lg) var(--tma-radius-lg) 0 0;
  padding: var(--tma-space-8) var(--tma-space-6) calc(var(--tma-space-8) + env(safe-area-inset-bottom, 0));
  animation: tma-sheet-in var(--tma-motion-slow) forwards;
}
@keyframes tma-sheet-in {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

/* ── Overlay (EPIC celebration tier) ─────────────────────────── */
.tma-overlay-epic {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--tma-surface-base);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--tma-space-8);
  max-width: 480px;
  margin: 0 auto;
  animation: tma-fade-in var(--tma-motion-epic) forwards;
}
@keyframes tma-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Input pill (3-state) ────────────────────────────────────── */
.tma-input-pill-row {
  display: flex;
  gap: var(--tma-space-2);
  flex-wrap: wrap;
}

/* ── Progress bar ────────────────────────────────────────────── */
.tma-progress {
  width: 100%;
  height: 6px;
  background: var(--tma-border-soft);
  border-radius: 3px;
  overflow: hidden;
}
.tma-progress__fill {
  height: 100%;
  background: var(--tma-brand-primary);
  border-radius: 3px;
  transition: width var(--tma-motion-slow);
}

/* ── Skill ring (svg-driven) ─────────────────────────────────── */
.tma-skill-ring {
  display: inline-block;
  position: relative;
  width: 64px;
  height: 64px;
}
.tma-skill-ring__track  { stroke: var(--tma-border-soft); }
.tma-skill-ring__fill   { stroke: var(--tma-brand-primary); transition: stroke-dashoffset var(--tma-motion-slow); }
.tma-skill-ring__center {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--tma-text-sm);
  font-weight: var(--tma-weight-bold);
  color: var(--tma-text-primary);
}

/* ── Cascade node (Skills tab tree node) ─────────────────────── */
.tma-cascade-node {
  display: flex;
  align-items: center;
  gap: var(--tma-space-3);
  padding: var(--tma-space-3) var(--tma-space-4);
  background: var(--tma-surface-1);
  border-left: 3px solid var(--tma-border-soft);
  border-radius: 0 var(--tma-radius-md) var(--tma-radius-md) 0;
  margin-bottom: var(--tma-space-2);
}
.tma-cascade-node--current { border-left-color: var(--tma-brand-primary); }
.tma-cascade-node--mastered { border-left-color: var(--tma-brand-accent); }
.tma-cascade-node--locked   { opacity: 0.45; }

/* ── Identity strip (Today tab — Day N · Tier badge) ─────────── */
.tma-identity-strip {
  display: flex;
  align-items: center;
  gap: var(--tma-space-3);
  padding: var(--tma-space-2) var(--tma-space-4);
  font-size: var(--tma-text-xs);
  color: var(--tma-text-tertiary);
  letter-spacing: var(--tma-tracking-wide);
  text-transform: uppercase;
}