/* ============================================================
   ARC Perform — Train + Recover
   Minimalist black / white / single accent (warm amber)
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-dark: #0a0a0a;
  --fg: #0a0a0a;
  --fg-muted: #5a5a5a;
  --fg-on-dark: #f5f5f5;
  --fg-on-dark-muted: #9a9a9a;
  --accent: #e8743b;       /* warm amber — sauna/ember */
  --accent-hover: #d65f25;
  --border: #ececec;
  --border-dark: #1f1f1f;
  --max-width: 1180px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 4px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3 {
  font-family: 'Bebas Neue', 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.75rem, 7vw, 5.5rem); }
h2 { font-size: clamp(2rem, 5vw, 3.75rem); }
h3 { font-size: 1.25rem; font-family: 'Inter', sans-serif; font-weight: 600; letter-spacing: 0; }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 1em;
}

.section-dark .eyebrow { color: var(--fg-on-dark-muted); }

em { font-style: normal; color: var(--accent); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.95em 1.6em;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.btn-sm { padding: 0.6em 1.1em; font-size: 0.85rem; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--fg);
}
.btn-ghost:hover { background: var(--fg); color: #fff; }

.section-dark .btn-ghost { color: var(--fg-on-dark); border-color: var(--fg-on-dark); }
.section-dark .btn-ghost:hover { background: var(--fg-on-dark); color: var(--bg-dark); }

/* ============ HEADER / NAV ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
}
.brand-mark { height: 48px; width: auto; object-fit: contain; display: block; }

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg);
  transition: color 0.15s ease;
}
.nav-links a:not(.btn):hover { color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--fg);
  transition: 0.25s;
}

@media (max-width: 800px) {
  .nav { padding-top: 0.75rem; padding-bottom: 0.75rem; }
  .brand-mark { height: 40px; max-width: 60vw; }
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--pad) 1.25rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.75rem 0; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child { border: none; padding-top: 1rem; }
  .nav-links .btn { width: 100%; }
}

/* ============ HERO ============ */
.hero {
  padding: clamp(3rem, 10vh, 7rem) 0 clamp(3rem, 8vh, 6rem);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}
.hero-copy h1 { margin-bottom: 0.4em; }
.lede {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--fg-muted);
  max-width: 46ch;
  margin-bottom: 2rem;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-photo {
  width: 100%;
  max-width: 560px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(0,0,0,0.18);
}

@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-photo { aspect-ratio: 4 / 3; max-width: 100%; }
}

/* ============ SECTIONS ============ */
.section {
  padding: clamp(4rem, 9vh, 7rem) 0;
  border-top: 1px solid var(--border);
}
.section-dark {
  background: var(--bg-dark);
  color: var(--fg-on-dark);
  border-top: none;
}
.section-dark p { color: var(--fg-on-dark-muted); }

.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head h2 { margin-bottom: 0; }

/* ============ SERVICES CARDS ============ */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.card {
  padding: 2rem 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fafafa;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--fg);
  background: #fff;
}
.card-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}
.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--fg-muted); margin: 0; font-size: 0.95rem; }

/* ============ ABOUT ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.about-copy h2 { color: var(--fg-on-dark); }
.about-stats {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--border-dark);
  padding-top: 2rem;
}
.about-stats li { display: flex; flex-direction: column; }
.about-stats strong {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.25rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.about-stats span {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-on-dark-muted);
  margin-top: 0.2rem;
}
.about-visual { display: flex; justify-content: center; }
.about-photo {
  width: 100%;
  max-width: 460px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}

@media (max-width: 800px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-photo { aspect-ratio: 3 / 4; max-width: 380px; }
  .about-stats { grid-template-columns: 1fr 1fr 1fr; gap: 0.5rem; }
  .about-stats strong { font-size: 1.75rem; }
}

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: stretch;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.contact-list li:last-child { border: none; }
.contact-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--fg-muted);
  font-weight: 600;
}
.contact-list a:hover { color: var(--accent); }

.contact-cta { margin-top: 1rem; }

.contact-map {
  min-height: 380px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #f1f1f1;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
  .contact-list li { grid-template-columns: 1fr; gap: 0.25rem; }
  .contact-map { min-height: 280px; }
}

/* ============ FOOTER ============ */
.footer {
  background: var(--bg-dark);
  color: var(--fg-on-dark-muted);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.footer-brand p { margin: 0; font-size: 0.85rem; }
.footer-mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: invert(1);
}
.footer-meta { margin: 0; font-size: 0.8rem; }

/* ============ MOTION-SAFE ANIM ============ */
@media (prefers-reduced-motion: no-preference) {
  .card, .btn, .nav-links a { will-change: transform; }
}