/* ============================================================
   TITAN FORGE FITNESS — Design Tokens
   "Built Here. Forged Within."
   Cold steel structure · one point of ember heat
   ============================================================ */

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

:root {
  /* — Surfaces (cool charcoal, never muddy black) — */
  --bg:        #131619;   /* page base */
  --bg-1:      #181B1F;   /* raised surface */
  --bg-2:      #1F242A;   /* card */
  --bg-3:      #272D34;   /* elevated card / hover */
  --bg-inset:  #0E1013;   /* recessed / footer */

  /* — Forged steel ramp (lead accent) — */
  --steel-100: #EAEDF0;
  --steel-200: #C3CAD1;
  --steel-300: #9BA3AB;   /* primary steel accent */
  --steel-400: #757D86;
  --steel-500: #565D65;

  /* — Ember (the single point of heat — CTA + key proof only) — */
  --ember:     #E2552E;
  --ember-hot: #F2683F;
  --ember-deep:#B23E1E;
  --ember-glow: rgba(226, 85, 46, 0.28);

  /* — Brass (whisper accent, rules & marks only) — */
  --brass:     #C8893B;

  /* — Text — */
  --text:      #ECEFF2;
  --text-2:    #AEB6BE;   /* secondary copy */
  --text-3:    #79818A;   /* muted / captions */

  /* — Lines & strokes — */
  --line:      rgba(255,255,255,0.09);
  --line-2:    rgba(255,255,255,0.16);
  --line-ember:rgba(226,85,46,0.55);

  /* — Type — */
  --display: 'Oswald', 'Arial Narrow', sans-serif;   /* condensed athletic */
  --body:    'Hanken Grotesk', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, monospace;

  /* — Radius (sharp / lightly rounded only) — */
  --r-sm: 2px;
  --r:    4px;
  --r-lg: 6px;

  /* — Shadows — */
  --shadow:    0 18px 40px -22px rgba(0,0,0,0.8);
  --shadow-lg: 0 40px 90px -40px rgba(0,0,0,0.9);

  /* — Layout — */
  --maxw: 1240px;
  --gut:  clamp(20px, 5vw, 72px);
}

/* ============================================================
   PRIMITIVES — shared helpers used across pages
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

.tf-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-300);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.tf-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--ember);
}
.tf-eyebrow--center::before { display: none; }

.tf-display {
  font-family: var(--display);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--text);
}

/* Brushed steel sheen for big headlines */
.tf-steel-text {
  background: linear-gradient(176deg, #ffffff 0%, #C3CAD1 38%, #8A929B 72%, #B7BEC6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
@media (max-width: 560px) {
  .tf-steel-text {
    background: none;
    -webkit-background-clip: border-box;
    background-clip: border-box;
    -webkit-text-fill-color: var(--steel-100);
    color: var(--steel-100);
  }
}

.tf-ember { color: var(--ember); }

/* Subtle film grain overlay — apply to a fixed/absolute layer */
.tf-grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Photography placeholder — dark, textured, labelled */
.tf-photo {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 70% 20%, rgba(155,163,171,0.10), transparent 60%),
    linear-gradient(155deg, #20252B 0%, #161A1E 55%, #0F1215 100%);
  isolation: isolate;
}
.tf-photo::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.035) 0 2px, transparent 2px 9px);
  mix-blend-mode: overlay;
  opacity: 0.7;
  z-index: 1;
  pointer-events: none;
}
.tf-photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,16,19,0.08) 0%, rgba(14,16,19,0.32) 48%, rgba(14,16,19,0.72) 100%);
  z-index: 2;
  pointer-events: none;
}
.tf-photo__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--photo-pos, center);
  filter: saturate(0.92) contrast(1.08) brightness(0.86);
  z-index: 0;
}
.tf-photo__tag {
  position: absolute;
  left: 16px; bottom: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex; align-items: center; gap: 8px;
  z-index: 4;
}
.tf-photo__tag::before {
  content: "";
  width: 7px; height: 7px;
  border: 1px solid var(--steel-400);
}

/* Hairline forge rule with ember tick */
.tf-rule {
  height: 1px;
  background: var(--line);
  position: relative;
}
.tf-rule::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 64px; height: 1px;
  background: var(--ember);
}