/* ===========================
   DESIGN TOKENS
   =========================== */
:root,
[data-theme='light'] {
  /* Forest green + cream palette — classic ETA search aesthetic */
  --color-bg: #ffffff;
  --color-surface: #f5f3ee;       /* warm cream offset sections */
  --color-surface-2: #edeae3;
  --color-divider: #ddd9d1;
  --color-border: #ccc9c1;
  --color-text: #1a3a2a;          /* deep forest green — the brand anchor */
  --color-text-muted: #4a6a5a;
  --color-text-faint: #8aaa98;
  --color-text-inverse: #f5f3ee;
  --color-primary: #1a3a2a;       /* nav, headings, logo */
  --color-accent: #c9a96e;        /* warm gold accent for links/highlights */
  --color-accent-hover: #b8944d;

  /* Type */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Scale */
  --text-xs:   clamp(0.75rem,  0.7rem + 0.25vw,  0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw,  1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw,   1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem + 4vw,      5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --content-default: 1100px;
  --content-narrow: 680px;
  --header-h: 68px;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 200ms var(--ease);

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(26,58,42,0.08);
  --shadow-md: 0 4px 16px rgba(26,58,42,0.1);
}

[data-theme='dark'] {
  --color-bg: #0e1a14;
  --color-surface: #121e16;
  --color-surface-2: #162018;
  --color-divider: #1a2b1e;
  --color-border: #233228;
  --color-text: #d8e8dc;
  --color-text-muted: #6a8f7a;
  --color-text-faint: #3f6250;
  --color-text-inverse: #0e1a14;
  --color-primary: #d8e8dc;
  --color-accent: #d4a96e;
  --color-accent-hover: #e8c48a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0e1a14;
    --color-surface: #121e16;
    --color-surface-2: #162018;
    --color-divider: #1a2b1e;
    --color-border: #233228;
    --color-text: #d8e8dc;
    --color-text-muted: #6a8f7a;
    --color-text-faint: #3f6250;
    --color-text-inverse: #0e1a14;
    --color-primary: #d8e8dc;
    --color-accent: #d4a96e;
    --color-accent-hover: #e8c48a;
  }
}

/* ===========================
   RESET & BASE
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: var(--font-display); text-wrap: balance; line-height: 1.15; color: var(--color-text); }
p, li { text-wrap: pretty; max-width: 68ch; }
ul[role='list'] { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
main { flex: 1; }

::selection { background: rgba(201,169,110,0.25); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===========================
   HEADER / NAV
   =========================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-text);   /* deep forest green */
  height: var(--header-h);
  transition: box-shadow var(--t);
}
.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,0.18);
}
.header-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.logo {
  color: var(--color-text-inverse);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: opacity var(--t);
}
.logo:hover { opacity: 0.85; }

.nav-links {
  display: flex;
  gap: var(--space-8);
  margin-left: auto;
  align-items: center;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(245,243,238,0.75);
  letter-spacing: 0.04em;
  transition: color var(--t);
  position: relative;
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--t);
}
.nav-links a:hover,
.nav-links a.active {
  color: #ffffff;
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: rgba(245,243,238,0.65);
  transition: color var(--t), background var(--t);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: rgba(245,243,238,0.8);
  transition: color var(--t);
}
.mobile-menu-btn:hover { color: #fff; }

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--color-text);
  padding: var(--space-4) var(--space-8) var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu a {
  padding: var(--space-3) 0;
  font-size: var(--text-base);
  font-weight: 500;
  color: rgba(245,243,238,0.8);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: color var(--t);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: #fff; }
.mobile-menu.open { display: flex; }

@media (max-width: 640px) {
  .nav-links, .theme-toggle { display: none; }
  .mobile-menu-btn { display: flex; margin-left: auto; }
}

/* ===========================
   HERO (homepage only)
   =========================== */
.hero {
  background: var(--color-bg);
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-8);
  border-bottom: 1px solid var(--color-divider);
}
.hero-grid {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
.hero-headline h1 {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.hero-body {
  padding-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.hero-body p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
}
.inline-link {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-accent);
  transition: border-color var(--t), color var(--t);
}
.inline-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent-hover);
}

@media (max-width: 700px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* ===========================
   FOUNDER SECTION (homepage)
   =========================== */
.founder-section {
  background: var(--color-surface);
  padding: clamp(var(--space-12), 7vw, var(--space-20)) var(--space-8);
}
.founder-card {
  max-width: var(--content-default);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  text-align: center;
}
.founder-photo-wrap {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-surface-2);
  border: 3px solid var(--color-bg);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}
.founder-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
/* Placeholder when no photo */
.founder-photo-wrap:not(:has(img[src*=".jpg"])) {
  display: flex;
  align-items: center;
  justify-content: center;
}
.founder-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.founder-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}
.founder-title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.founder-email {
  font-size: var(--text-sm);
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t);
  margin-top: var(--space-2);
}
.founder-email:hover { border-color: var(--color-accent); }

/* ===========================
   CONTENT SECTIONS (interior pages)
   =========================== */
.content-section {
  padding: clamp(var(--space-12), 7vw, var(--space-20)) var(--space-8);
}
.bg-white { background: var(--color-bg); }
.bg-offset { background: var(--color-surface); }

.section-rule {
  height: 1px;
  background: var(--color-divider);
  margin: 0;
}

/* Two-column layout used on all interior sections */
.two-col {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: start;
}
.col-heading h1,
.col-heading h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  position: sticky;
  top: calc(var(--header-h) + var(--space-8));
}
.col-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.col-body > p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: var(--space-6); }
  .col-heading h1,
  .col-heading h2 { position: static; font-size: var(--text-xl); }
}

/* ===========================
   CRITERIA LIST (Approach)
   =========================== */
.criteria-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-divider);
}
.criteria-list li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-divider);
  max-width: 100%;
  align-items: baseline;
}
.criterion-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.criterion-value {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.55;
}
@media (max-width: 480px) {
  .criteria-list li { grid-template-columns: 1fr; gap: var(--space-1); }
}

/* ===========================
   PILLARS (Why Different)
   =========================== */
.pillars {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.pillar {
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-accent);
}
.pillar h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.pillar p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================
   PROCESS STEPS
   =========================== */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}
.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-2) var(--space-6);
  align-items: start;
}
.step h3,
.step p {
  grid-column: 1 / -1;
}
.step-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  padding-top: var(--space-1);
}
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}
.step-time {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.step h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.step p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}
@media (max-width: 480px) {
  .step { grid-template-columns: 1fr; }
  .step-meta { flex-direction: row; align-items: center; gap: var(--space-3); }
}

/* ===========================
   BIO LAYOUT (About)
   =========================== */
.bio-layout {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}
.bio-photo-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: sticky;
  top: calc(var(--header-h) + var(--space-8));
}
.bio-photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  /* Placeholder gradient when image not loaded */
  background: linear-gradient(160deg, #c5d0d8 0%, #9aadbc 100%);
}
.bio-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.bio-card-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}
.bio-card-title {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.bio-card-email {
  font-size: var(--text-sm);
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t);
  margin-top: var(--space-2);
}
.bio-card-email:hover { border-color: var(--color-accent); }

.bio-text-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.bio-text-col p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

@media (max-width: 700px) {
  .bio-layout { grid-template-columns: 1fr; }
  .bio-photo-col { position: static; flex-direction: row; align-items: center; }
  .bio-photo { width: 120px; aspect-ratio: 1; border-radius: 50%; flex-shrink: 0; }
}

/* ===========================
   CREDENTIALS GRID (About)
   =========================== */
.credentials-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
}
.credential {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}
.cred-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  flex-shrink: 0;
}
.cred-title {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  max-width: 100%;
}
.cred-sub {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
  max-width: 100%;
}

/* ===========================
   CONTACT PAGE
   =========================== */
.contact-section {
  min-height: calc(100dvh - var(--header-h) - 64px);
}
.contact-lead {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 52ch;
}
.contact-card {
  margin-top: var(--space-4);
  padding: var(--space-8);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.contact-card-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}
.contact-card-title {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.contact-email-link {
  font-size: var(--text-base);
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), color var(--t);
  margin-top: var(--space-3);
  display: inline-block;
  font-weight: 500;
}
.contact-email-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

/* ===========================
   FOOTER
   =========================== */
.site-footer {
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding: var(--space-6) var(--space-8);
  margin-top: auto;
}
.footer-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}
.footer-brand {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  opacity: 0.9;
}
.footer-link {
  font-size: var(--text-sm);
  color: rgba(245,243,238,0.65);
  border-bottom: 1px solid transparent;
  transition: color var(--t), border-color var(--t);
}
.footer-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===========================
   PLACEHOLDER AVATAR (no photo)
   =========================== */
.founder-photo-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1e4030 0%, #2a5040 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--color-bg);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}
.founder-photo-placeholder svg {
  color: rgba(245,243,238,0.6);
}