@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

/* ============================================================
   Project Evan Website — Shared Stylesheet
   Brand palette from evan-contracts/branding/branding-tokens.json (updated 2026-04-21)
   Colour scheme: M3 light — colorSchemes.light
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root,
:root[data-theme='light'] {
  --primary:              #216A4D;
  --on-primary:           #FFFFFF;
  --primary-container:    #A9F2CC;
  --on-primary-container: #005237;
  --secondary:            #4D6357;
  --on-secondary:         #FFFFFF;
  --secondary-container:  #CFE9D9;
  --on-secondary-container:#364B40;
  --tertiary:             #3D6473;
  --on-tertiary:          #FFFFFF;
  --tertiary-container:   #C0E9FB;
  --on-tertiary-container:#244C5A;

  --surface:              #F5FBF5;
  --background:           #F5FBF5;
  --on-surface:           #171D19;
  --on-surface-variant:   #404943;
  --surface-dim:          #D6DBD6;
  --surface-bright:       #F5FBF5;
  --surface-container-lowest: #FFFFFF;
  --surface-container-low:#F0F5EF;
  --surface-container:    #EAEFE9;
  --surface-container-high:#E4EAE4;
  --surface-elevated:     #FFFFFF;
  --outline:              #707973;
  --outline-variant:      #C0C9C1;

  --inverse-surface:      #2C322E;
  --inverse-primary:      #8ED5B1;
  --on-inverse-surface:   #ECF2EC;

  --text-primary:         #171D19;
  --text-muted:           #404943;
  --nav-background:       rgba(245, 251, 245, 0.92);

  --radius-card:          20px;
  --radius-btn:           14px;
  --nav-height:           73px;

  --font:                 'DM Sans', system-ui, sans-serif;
  --max-w:                1100px;
}

:root[data-theme='dark'] {
  --primary:              #8ED5B1;
  --on-primary:           #003825;
  --primary-container:    #005237;
  --on-primary-container: #A9F2CC;
  --secondary:            #B4CCBD;
  --on-secondary:         #1F352A;
  --secondary-container:  #364B40;
  --on-secondary-container:#CFE9D9;
  --tertiary:             #A5CCDE;
  --on-tertiary:          #073543;
  --tertiary-container:   #244C5A;
  --on-tertiary-container:#C0E9FB;

  --surface:              #0F1511;
  --background:           #0F1511;
  --on-surface:           #DEE4DE;
  --on-surface-variant:   #C0C9C1;
  --surface-dim:          #0F1511;
  --surface-bright:       #353B37;
  --surface-container-lowest: #0A0F0C;
  --surface-container-low:#171D19;
  --surface-container:    #1B211D;
  --surface-container-high:#252B28;
  --surface-elevated:     #171D19;
  --outline:              #8A938C;
  --outline-variant:      #404943;

  --inverse-surface:      #DEE4DE;
  --inverse-primary:      #216A4D;
  --on-inverse-surface:   #2C322E;

  --text-primary:         #DEE4DE;
  --text-muted:           #C0C9C1;
  --nav-background:       rgba(15, 21, 17, 0.92);
}

@media (prefers-contrast: more) {
  :root[data-theme='light'] {
    --primary:              #003321;
    --on-primary-container: #FFFFFF;
    --secondary:            #1B3026;
    --tertiary:             #01313F;
    --surface-container:    #DEE4DE;
    --surface-container-high:#D0D6D0;
    --outline:              #262E29;
    --outline-variant:      #424B46;
    --text-primary:         #000000;
    --on-surface:           #000000;
    --on-surface-variant:   #000000;
    --text-muted:           #000000;
    --on-primary:           #FFFFFF;
  }

  :root[data-theme='dark'] {
    --primary:              #BAFFDA;
    --on-primary:           #000000;
    --primary-container:    #8AD1AD;
    --on-primary-container: #000E07;
    --secondary:            #DDF6E6;
    --tertiary:             #DCF4FF;
    --surface:              #0F1511;
    --background:           #0F1511;
    --on-surface:           #FFFFFF;
    --on-surface-variant:   #FFFFFF;
    --surface-container:    #2C322E;
    --surface-container-high:#373D39;
    --surface-elevated:     #1B211D;
    --surface-container-low:#1B211D;
    --outline:              #E9F2EA;
    --outline-variant:      #BCC5BD;
    --inverse-surface:      #DEE4DE;
    --inverse-primary:      #005338;
    --on-inverse-surface:   #000000;
    --text-primary:         #FFFFFF;
    --text-muted:           #FFFFFF;
    --nav-background:       rgba(15, 21, 17, 0.96);
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--background);
  color: var(--on-surface);
  line-height: 1.65;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Utility ---------- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.section { padding: 80px 0; }
.section--alt { background: var(--primary); }
.section--alt h2,
.section--alt h3,
.section--alt p {
  color: var(--on-primary);
}

/* ---------- Navigation ---------- */
#site-nav {
  height: var(--nav-height);
  backdrop-filter: blur(5px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 100;
}

.nav {
  background: var(--nav-background);
  border-bottom: 1px solid var(--outline-variant);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav__logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  letter-spacing: -0.01em;
}
.nav__logo span { color: var(--secondary); }
.nav__links { display: flex; gap: 32px; list-style: none; align-items: baseline; }
.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  transition: color 0.2s;
}
.nav__links a:hover, .nav__links a.active { color: var(--primary); text-decoration: none; }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--primary); margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

/* Dropdown Menu */
.nav__dropdown { 
  position: relative; 
  margin: auto 0;
}
.nav__dropdown-toggle {
  background: none;
  border: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav__dropdown-toggle:hover, .nav__dropdown-toggle.active {
  color: var(--primary);
}
.nav__dropdown-toggle::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  transition: transform 0.2s;
}
.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  min-width: 200px;
  list-style: none;
  padding: 8px 0;
  margin-top: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 1000;
}
.nav__dropdown-menu li {
  padding: 0;
}
.nav__dropdown-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  transition: background 0.2s, color 0.2s;
}
.nav__dropdown-menu a:hover {
  background: var(--surface-container-high);
  color: var(--primary);
  text-decoration: none;
}
.nav__dropdown-menu a.active {
  color: var(--primary);
  background: rgba(26, 183, 102, 0.1);
}
.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__dropdown:hover .nav__dropdown-toggle::after {
  transform: rotate(180deg);
}

/* Download Button */
.nav__download {
  background: var(--primary);
  color: var(--on-primary) !important;
  padding: 8px 16px;
  border-radius: 100px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
  display: inline-block;
}
.nav__download:hover {
  background: var(--primary-container);
  color: var(--on-primary-container) !important;
  text-decoration: none;
  transform: translateY(-2px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn--primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 4px 16px rgba(33,106,77,0.3);
}
.btn--primary:hover { box-shadow: 0 6px 24px rgba(33,106,77,0.4); }
.btn--dark {
  background: var(--inverse-surface);
  color: var(--on-inverse-surface);
  box-shadow: 0 4px 16px rgba(33,106,77,0.25);
}
.btn--dark:hover { box-shadow: 0 6px 24px rgba(33,106,77,0.35); }
.btn--outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn--outline:hover { background: var(--surface-container); }
.btn--ghost {
  background: transparent;
  color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
}
.btn--ghost:hover { background: var(--surface-container); }

/* ---------- Store Badges ---------- */
.store-badges { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--inverse-surface);
  color: var(--on-inverse-surface);
  border-radius: var(--radius-btn);
  text-decoration: none;
  font-size: 0.85rem;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 14px rgba(33,106,77,0.25);
}
.store-badge:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(33,106,77,0.35); text-decoration: none; }
.store-badge svg { flex-shrink: 0; }
.store-badge__text { display: flex; flex-direction: column; }
.store-badge__sub { font-size: 0.7rem; opacity: 0.75; line-height: 1; }
.store-badge__label { font-size: 1rem; font-weight: 700; line-height: 1.2; }

/* ---------- Hero ---------- */
.hero {
  background: var(--surface);
  color: var(--on-surface);
  padding: 100px 0 80px;
  overflow: hidden;
  position: relative;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-elevated);
  border: 1px solid var(--outline-variant);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  margin-bottom: 24px;
}
.hero__eyebrow .material-icons {
  font-size: 16px;
  width: 16px;
  height: 16px;
  color: var(--primary);
}
.hero__title {
  font-size: clamp(3.2rem, 7vw, 5.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero__title span { color: var(--primary); }
.hero__desc {
  font-size: 1.1rem;
  color: var(--on-surface-variant);
  margin-bottom: 40px;
  max-width: 480px;
}
.hero__phone-wrap {
  display: flex;
  justify-content: right;
  align-items: flex-end;
}
.hero__phone {
  width: 260px;
  height: 520px;
  background: var(--surface-elevated);
  border: 1px solid var(--outline-variant);
  border-radius: 44px;
  position: relative;
  box-shadow: 0 40px 80px rgba(0,0,0,0.25);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
}
.hero__phone-notch {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 28px;
  background: rgba(0,0,0,0.4);
  border-radius: 20px;
}
.hero__phone-logo {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.04em;
}
.hero__phone-tagline {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Feature Cards ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--surface-elevated);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  border: 1px solid var(--outline-variant);
  transition: box-shadow 0.2s, transform 0.2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(33,106,77,0.1); }
.feature-card__icon {
  width: 52px; height: 52px;
  background: var(--surface-container);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}
.feature-card__icon .material-icons {
  font-size: 28px;
  width: 28px;
  height: 28px;
}
.feature-card__title { font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; color: var(--primary); }
.feature-card__desc { font-size: 0.9rem; color: var(--text-muted); }

/* ---------- Section Heading ---------- */
.section-heading { margin-bottom: 56px; }
.section-heading h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-heading p { 
  font-size: 1rem; 
  color: var(--text-muted); 
  max-width: 580px; 
  margin: auto;
}

/* ---------- Legal / Document Pages ---------- */
.doc-hero {
  background: var(--inverse-surface);
  color: var(--on-inverse-surface);
  padding: 72px 0 56px;
}
.doc-hero__tag {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.doc-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -0.01em; margin-bottom: 12px; }
.doc-hero p { font-size: 1rem; opacity: 0.75; }
.doc-body { padding: 64px 0 100px; }
.doc-layout { display: grid; grid-template-columns: 260px 1fr; gap: 56px; align-items: start; }
.doc-toc {
  position: sticky;
  top: 88px;
  background: var(--surface-elevated);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-card);
  padding: 24px;
}
.doc-toc h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--outline); margin-bottom: 16px; font-weight: 600; }
.doc-toc ol { list-style: none; padding: 0; }
.doc-toc ol li + li { margin-top: 8px; }
.doc-toc ol a { font-size: 0.875rem; color: var(--on-surface-variant); transition: color 0.2s; }
.doc-toc ol a:hover { color: var(--primary); text-decoration: none; }
.doc-content h2 {
  font-size: 1.5rem; font-weight: 700; color: var(--primary);
  margin: 48px 0 16px; letter-spacing: -0.01em;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--surface-container);
}
.doc-content h2:first-child { margin-top: 0; }
.doc-content h3 { font-size: 1.1rem; font-weight: 600; color: var(--on-surface); margin: 32px 0 12px; }
.doc-content p { font-size: 0.95rem; color: var(--on-surface-variant); margin-bottom: 16px; }
.doc-content ul, .doc-content ol { padding-left: 24px; margin-bottom: 16px; }
.doc-content li { font-size: 0.95rem; color: var(--on-surface-variant); margin-bottom: 6px; }
.doc-content strong { color: var(--on-surface); }
.doc-content .callout {
  background: var(--surface-container);
  border-left: 4px solid var(--primary);
  border-radius: 0 12px 12px 0;
  padding: 16px 20px;
  margin: 24px 0;
}
.doc-content .callout p { margin: 0; font-size: 0.9rem; }
.doc-content table { width: 100%; border-collapse: collapse; margin-bottom: 24px; font-size: 0.9rem; }
.doc-content th { background: var(--surface-container); padding: 10px 16px; text-align: left; font-weight: 600; color: var(--primary); }
.doc-content td { padding: 10px 16px; border-bottom: 1px solid var(--outline-variant); color: var(--on-surface-variant); }
.doc-content code {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 6px;
  padding: 2px 7px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  color: var(--primary);
}
.doc-content pre {
  background: var(--inverse-surface);
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
}
.doc-content pre code {
  background: none;
  border: none;
  color: var(--inverse-primary);
  font-size: 0.88rem;
  padding: 0;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--surface-container);
  color: var(--on-surface-variant);
  padding: 56px 0 32px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer__brand .footer__logo { font-size: 1.4rem; font-weight: 700; color: var(--on-surface); margin-bottom: 12px; }
.footer__brand .footer__logo span { color: var(--primary); }
.footer__brand p { font-size: 0.875rem; line-height: 1.6; max-width: 260px; }
.footer__col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--on-surface-variant); margin-bottom: 16px; font-weight: 600; }
.footer__col ul { list-style: none; }
.footer__col ul li + li { margin-top: 10px; }
.footer__col ul a { color: var(--on-surface-variant); font-size: 0.875rem; transition: color 0.2s; }
.footer__col ul a:hover { color: var(--primary); text-decoration: none; }
.footer__bottom {
  border-top: 1px solid var(--outline-variant);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom p { font-size: 0.8rem; }
.footer__cic {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__phone-wrap { display: none; }
  .hero__desc { max-width: 100%; }
  .store-badges { justify-content: center; }
  .features { grid-template-columns: 1fr 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; }
}
@media (max-width: 600px) {
  :root {
    --nav-height: 69px;
  }

  .section { padding: 56px 0; }
  .features { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .nav__links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--surface-elevated); padding: 20px 24px; border-bottom: 1px solid var(--outline-variant); gap: 20px; }
  .nav__links.open { display: flex; }
  .nav__toggle { display: block; }
  .nav__dropdown-menu {
    position: static;
    opacity: 0;
    visibility: hidden;
    display: none;
    background: var(--surface-container);
    border: none;
    border-radius: 0;
    min-width: auto;
    margin: 0;
    padding: 12px 0 12px 24px;
    transform: none;
  }
  .nav__dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    display: flex;
    flex-direction: column;
  }
  .nav__dropdown-menu a {
    padding: 8px 0;
  }
  .nav__dropdown-toggle::after {
    display: none;
  }
  .doc-hero { padding: 52px 0 40px; }
}