/* =========================================================
   Aurum Training Co — stylesheet
   ========================================================= */

:root {
  --bg: #15110c;
  --surface: #1e1810;
  --gold: #c6a76c;
  --gold-dim: #8f7850;
  --cream: #efe9dd;
  --cream-dim: #a89f8d;
  --gold-gradient: linear-gradient(135deg, #e6cd9c 0%, #c6a76c 55%, #8f7850 100%);

  --font-heading: 'Cormorant Garamond', 'Playfair Display', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1120px;
  --border-soft: rgba(198, 167, 108, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.15;
  margin: 0;
  color: var(--cream);
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 18px;
  font-weight: 500;
}

/* reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================= HEADER / NAV ================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(21, 17, 12, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--border-soft);
  background: rgba(21, 17, 12, 0.92);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark { height: 28px; width: auto; }
.brand-word {
  font-family: var(--font-heading);
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--gold);
}
.brand-word span { color: var(--cream); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}
.site-nav a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cream-dim);
  transition: color 0.25s ease;
  position: relative;
}
.site-nav a:hover { color: var(--gold); }

.nav-enquire {
  color: var(--gold) !important;
  border: 1px solid var(--gold-dim);
  padding: 10px 20px;
  border-radius: 2px;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.nav-enquire:hover {
  background: var(--gold);
  color: var(--bg) !important;
  border-color: var(--gold);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 1px;
  width: 100%;
  background: var(--gold);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ================= HERO ================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 84px;
}

.hero-media {
  position: absolute;
  inset: 0;
  background-color: var(--bg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.75) 55%, var(--bg) 100%);
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,0,0,0.3), transparent 60%);
  pointer-events: none;
}

.hero-watermark {
  position: absolute;
  right: -8%;
  top: 50%;
  transform: translateY(-50%);
  width: 60vw;
  max-width: 820px;
  opacity: 0.045;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero h1 {
  font-size: clamp(42px, 6vw, 68px);
  letter-spacing: 0.01em;
  margin-bottom: 26px;
}

.hero-sub {
  font-size: 17px;
  color: var(--cream-dim);
  max-width: 500px;
  margin-bottom: 40px;
}

.text-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--gold-dim);
  transition: gap 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}
.text-cta:hover {
  gap: 16px;
  border-color: var(--gold);
  color: var(--cream);
}
.text-cta span { transition: transform 0.25s ease; }

/* ================= SECTION SPACING ================= */
section { padding: 130px 0; }
.offerings { background: var(--bg); }

.section-head { max-width: 560px; margin-bottom: 64px; }
.section-head h2 {
  font-size: clamp(32px, 4vw, 44px);
}
.section-head.centered {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ================= PHILOSOPHY ================= */
.philosophy { background: var(--bg); }

.philosophy-grid {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 80px;
  align-items: center;
}

.philosophy-media {
  position: relative;
  aspect-ratio: 4 / 5;
  background-color: var(--surface);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--border-soft);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-frame-mark { width: 64px; opacity: 0.5; }
.media-frame-mark img { width: 100%; }

.philosophy-copy h2 { margin-bottom: 28px; }
.philosophy-copy p { color: var(--cream-dim); font-size: 16px; }
.philosophy-copy p + p { margin-top: 18px; }

/* ================= OFFERINGS ================= */
.offerings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
}

.offering-card {
  background: var(--bg);
  padding: 48px 40px;
  transition: background 0.3s ease;
}
.offering-card:hover { background: var(--surface); }

.offering-index {
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--gold-dim);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.offering-card h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

.offering-card p {
  color: var(--cream-dim);
  font-size: 15px;
}

/* ================= ENQUIRE ================= */
.enquire {
  background: var(--surface);
  border-top: 1px solid var(--border-soft);
}

.enquire-inner { max-width: 620px; }

.enquire-sub {
  color: var(--cream-dim);
  font-size: 16px;
}

.enquiry-form {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-row { display: flex; flex-direction: column; gap: 10px; }
.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.form-row-split > div { display: flex; flex-direction: column; gap: 10px; }

label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cream-dim);
}
label .optional { text-transform: none; letter-spacing: 0; opacity: 0.7; }

input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 300;
  padding: 14px 16px;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.25s ease;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--gold);
}
textarea { resize: vertical; font-family: var(--font-body); }

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='%23c6a76c' d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
  padding-right: 42px;
}
select:invalid { color: var(--cream-dim); }

.submit-btn {
  margin-top: 8px;
  align-self: flex-start;
  background: var(--gold-gradient);
  color: var(--bg);
  border: none;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 16px 38px;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.submit-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.submit-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.form-note {
  font-size: 14px;
  color: var(--gold);
  min-height: 1.2em;
  margin: 0;
}
.form-note.is-error { color: #d98c6b; }

/* ================= FOOTER ================= */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border-soft);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.footer-mark { height: 22px; opacity: 0.6; }
.footer-inner p {
  font-size: 13px;
  color: var(--cream-dim);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .philosophy-grid { grid-template-columns: 1fr; gap: 48px; }
  .offerings-grid { grid-template-columns: 1fr; }
  section { padding: 90px 0; }
}

@media (max-width: 760px) {
  .site-nav {
    position: fixed;
    top: 84px;
    left: 0; right: 0;
    background: rgba(21, 17, 12, 0.98);
    border-bottom: 1px solid var(--border-soft);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 32px 28px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
  .site-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .site-nav a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--border-soft); }
  .site-nav a:last-child { border-bottom: none; }
  .nav-enquire { margin-top: 10px; text-align: center; }
  .nav-toggle { display: flex; }

  .form-row-split { grid-template-columns: 1fr; gap: 24px; }
  .hero-watermark { opacity: 0.05; width: 90vw; right: -20%; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .hero h1 { font-size: 38px; }
}