/* =========================================================
   SportIntelliLab — Shared Design Tokens
   Single source of truth. Loaded first in every page <head>.
   ========================================================= */

:root {
  /* Backgrounds */
  --bg:   #0f1117;
  --bg2:  #0a0d14;

  /* Cards */
  --card:  #1a1d26;
  --card2: #12151f;

  /* Borders */
  --border:  #252a3a;
  --border2: #1e2230;

  /* Brand */
  --accent:  #00ffc8;
  --accent2: #7b2fff;

  /* Semantic colours */
  --danger:  #ff6b6b;
  --warning: #ff9f43;
  --success: #2ed573;

  /* Risk aliases */
  --risk-low:    var(--success);
  --risk-medium: var(--warning);
  --risk-high:   var(--danger);

  /* Typography — 5.5:1 contrast on --card, passes WCAG AA */
  --text:  #dde1ed;
  --muted: #9099b5;

  /* Layout */
  --nav-h: 68px;

  /* Type scale */
  --fs-xs:   0.72rem;
  --fs-sm:   0.82rem;
  --fs-base: 0.92rem;
  --fs-md:   1.05rem;
  --fs-lg:   1.35rem;
  --fs-xl:   1.6rem;
}

/* Global reset (prevents double-declaration across pages) */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

.hidden { display: none !important; }

/* ---- Password strength bar (index.html + reset-password.html) ---- */
.pw-strength {
  height: 3px;
  border-radius: 2px;
  background: var(--border);
  margin-top: 6px;
  overflow: hidden;
}

.pw-strength-fill {
  height: 100%;
  width: 0%;
  border-radius: 2px;
  transition: width 0.3s, background-color 0.3s;
}

.pw-strength-fill.weak   { width: 33%; background: var(--danger); }
.pw-strength-fill.medium { width: 67%; background: var(--warning); }
.pw-strength-fill.strong { width: 100%; background: var(--success); }

/* ---- Risk badges (shared across all pages) ---- */
.risk-badge {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  text-transform: capitalize;
}

.risk-badge.low    { background: rgba(46,213,115,0.14);  color: var(--risk-low);    border: 1px solid rgba(46,213,115,0.3); }
.risk-badge.medium { background: rgba(255,159,67,0.14);  color: var(--risk-medium); border: 1px solid rgba(255,159,67,0.3); }
.risk-badge.high   { background: rgba(255,107,107,0.14); color: var(--risk-high);   border: 1px solid rgba(255,107,107,0.3); }
.risk-badge.none   { background: rgba(255,255,255,0.05); color: var(--muted);       border: 1px solid var(--border); }

/* ---- Risk text colours (patient dashboard score card) ---- */
.risk-low    { color: var(--risk-low); }
.risk-medium { color: var(--risk-medium); }
.risk-high   { color: var(--risk-high); }

/* ---- Score colouring (doctor + patient dashboards) ---- */
.score-high { color: var(--success); font-weight: 700; }
.score-mid  { color: var(--warning); font-weight: 700; }
.score-low  { color: var(--danger);  font-weight: 700; }
.score-none { color: var(--muted); }

/* ---- Brand logo icon (used alongside wordmark on every page) ---- */
@keyframes logo-glow {
  0%, 100% { filter: drop-shadow(0 0 3px rgba(0, 255, 200, 0.6)); }
  50%       { filter: drop-shadow(0 0 8px rgba(0, 255, 200, 0.9)) drop-shadow(0 0 18px rgba(0, 255, 200, 0.35)); }
}
.nav-logo-icon { width: 22px; height: 22px; flex-shrink: 0; animation: logo-glow 2.5s ease-in-out infinite; }

/* ---- Skeleton shimmer (doctor + patient loading states) ---- */
@keyframes skel-shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}

.skel {
  background: linear-gradient(
    90deg,
    var(--card2) 25%,
    rgba(255,255,255,0.04) 50%,
    var(--card2) 75%
  );
  background-size: 800px 100%;
  animation: skel-shimmer 1.4s ease-in-out infinite;
  border-radius: 4px;
}

/* ---- Language toggle (every patient-facing page) ---- */
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.6rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  line-height: 1;
}

.lang-btn[aria-pressed="true"] { background: var(--accent); color: var(--bg); }
.lang-btn:hover:not([aria-pressed="true"]) { color: var(--text); }
