/* ============================================================
   DeepClarity — Brand Stylesheet
   Version 1.0 · April 2026
   Fonts: Cormorant Garamond (display) · Inter (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Inter:wght@300;400;500&display=swap');

/* ── DESIGN TOKENS ── */
:root {
  --navy:       #1B2A4A;
  --ink:        #2E4070;
  --slate:      #4A5E8A;
  --amber:      #C49A3C;
  --amber-mute: #D4B06A;
  --warm-white: #F5F3EE;
  --grey:       #8A8E96;
  --grey-light: #D0CFC9;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --max-w:   1120px;
  --pad-x:   clamp(1.5rem, 5vw, 5rem);
  --pad-y:   clamp(4rem, 8vw, 8rem);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--warm-white);
  color: var(--navy);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.75;
  font-weight: 300;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 300; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 300; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 400; }
h4 { font-size: 1.1rem; font-weight: 500; font-family: var(--font-body); letter-spacing: 0.12em; text-transform: uppercase; }

p { max-width: 62ch; }
p + p { margin-top: 1.2em; }

.label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey);
}

/* ── LAYOUT ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section { padding: var(--pad-y) var(--pad-x); max-width: var(--max-w); margin: 0 auto; }

/* ── NAVIGATION ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition);
}

nav.scrolled {
  background: rgba(245, 243, 238, 0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--grey-light);
}

.nav-wordmark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  display: flex;
  align-items: baseline;
  gap: 0;
}

.nav-wordmark .wordmark-name {
  line-height: 1;
}

.nav-wordmark .deep    { color: var(--warm-white); }
.nav-wordmark .clarity { color: var(--amber); }
.nav-wordmark .nav-descriptor { color: rgba(245, 243, 238, 0.5); }

/* Once scrolled, flip wordmark to dark */
nav.scrolled .nav-wordmark .deep { color: var(--navy); }
nav.scrolled .nav-descriptor     { color: var(--grey); }

.nav-descriptor {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
  margin-top: 0.125rem;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245, 243, 238, 0.65);
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--warm-white); }

.nav-links a.active {
  color: var(--warm-white);
  border-bottom: 1px solid var(--amber);
  padding-bottom: 1px;
}

/* Once scrolled — flip to dark */
nav.scrolled .nav-links a         { color: rgba(27, 42, 74, 0.65); }
nav.scrolled .nav-links a:hover   { color: var(--navy); }
nav.scrolled .nav-links a.active  { color: var(--navy); }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--warm-white);
  transition: var(--transition);
}

nav.scrolled .nav-toggle span { background: var(--navy); }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--navy);
  color: var(--warm-white);
}

.btn-primary:hover {
  background: var(--ink);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}

.btn-outline:hover {
  background: var(--navy);
  color: var(--warm-white);
}

.btn-amber {
  background: var(--amber);
  color: var(--warm-white);
}

.btn-amber:hover {
  background: #b38a35;
  transform: translateY(-1px);
}

/* ── AMBER RULE / DIVIDER ── */
.amber-rule {
  width: 3rem;
  height: 1.5px;
  background: var(--amber);
  margin-bottom: 2rem;
}

.amber-rule-sm {
  width: 1.8rem;
  height: 1.5px;
  background: var(--amber);
  margin-bottom: 1.2rem;
}

/* ── FOOTER ── */
footer {
  background: var(--navy);
  color: var(--warm-white);
  padding: 3.5rem var(--pad-x);
}

footer .footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

footer .footer-wordmark {
  font-family: var(--font-display);
  font-size: 1.3rem;
}

footer .footer-wordmark .deep   { color: var(--warm-white); }
footer .footer-wordmark .clarity { color: var(--amber); }

footer .footer-tagline {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
  margin-top: 0.4rem;
}

footer .footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  text-align: right;
}

footer .footer-links a {
  font-size: 0.8rem;
  color: rgba(245, 243, 238, 0.6);
  transition: color var(--transition);
  letter-spacing: 0.06em;
}

footer .footer-links a:hover { color: var(--amber); }

footer .footer-copy {
  width: 100%;
  font-size: 0.7rem;
  color: rgba(245, 243, 238, 0.3);
  letter-spacing: 0.1em;
  border-top: 1px solid rgba(245, 243, 238, 0.1);
  padding-top: 1.5rem;
  margin-top: 1rem;
}

/* ── FADE-IN ANIMATION ── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--warm-white);
    flex-direction: column;
    padding: 2rem var(--pad-x);
    gap: 1.5rem;
    border-top: 1px solid var(--grey-light);
    box-shadow: 0 8px 24px rgba(27, 42, 74, 0.08);
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  footer .footer-links { text-align: left; }
}

/* ── MOBILE TYPOGRAPHY ── */
@media (max-width: 768px) {
  body {
    font-size: 1.0625rem;
    line-height: 1.8;
  }

  p {
    font-size: 1rem;
    max-width: none;
  }

  h2 { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  h3 { font-size: clamp(1.25rem, 4.5vw, 1.6rem); }

  section {
    padding: clamp(3rem, 7vw, 5rem) var(--pad-x);
  }
}