/* ============================
   GLOBAL DESIGN TOKENS
   ============================
   These variables control the overall look of the site.
   If you want to change colors, radius, shadows, etc.,
   do it here and the whole site updates.
*/
:root {
  --bg: #f9fafb;                 /* Page background */
  --surface: #ffffff;            /* Card / header background */
  --border-subtle: #e5e7eb;      /* Light borders */
  --border-strong: #d1d5db;      /* Stronger borders */
  --text-main: #111827;          /* Main text color */
  --text-muted: #6b7280;         /* Secondary / muted text */
  --accent: #274A7D;             /* Primary brand accent (navy) */
  --accent-soft: #eef2ff;        /* Very light accent background */
  --accent-dark: #1e3a5f;        /* Darker navy (text, borders) */
  --max-width: 1040px;           /* Maximum content width */
  --radius-lg: 18px;             /* Card corner radius */
  --radius-pill: 999px;          /* Fully rounded (pills, buttons) */
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);  /* Card shadow */
}

/* ===== MOBILE HEADER OVERFLOW FIX (FINAL) ===== */
html, body {
  overflow-x: hidden;
}

@media (max-width: 820px) {

  /* Allow flex items to shrink properly */
  .header-inner,
  .brand-link,
  .brand,
  .brand-wordmark,
  .brand-text {
    min-width: 0;
  }

  /* Stack logo + wordmark vertically on mobile */
  .brand.brand-wordmark {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Override inline logo sizing */
  .brand-logo {
    height: 64px !important;
    width: auto !important;
    max-width: 100%;
  }

  /* Ensure menu button stays visible */
  .nav-toggle {
    flex: 0 0 auto;
  }
}


*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margins from the page */
html, body {
  margin: 0;
  padding: 0;
}

/* This forces a vertical scrollbar space even on short pages,
   so the header doesn’t shift left/right between pages. */
html {
  overflow-y: scroll;
}

/* Main body styling:
   - global font
   - background gradient
   - text color
*/
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e5f3ff 0, #f9fafb 42%, #f3f4f6 100%);
  color: var(--text-main);
  line-height: 1.6;
}

/* ============================
   PAGE LAYOUT
   ============================ */

.page {
  min-height: 100vh;       /* Page at least full viewport height */
  display: flex;
  flex-direction: column;  /* Header, then main, then footer stacked */
}

main {
  flex: 1;                 /* Main grows to fill vertical space */
}

/* ============================
   HEADER + NAVIGATION
   ============================ */

.header {
  position: sticky;              /* Sticks to top when scrolling */
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);   /* Blurred, glassy look behind header */
  background: rgba(249, 250, 251, 0.92);
  border-bottom: 1px solid rgba(209, 213, 219, 0.8);
}

/* This wraps the logo + nav and centers them on the page */
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

/* ============================
   BRAND: ICON + WORDMARK
   ============================ */

/* Container for icon + text */
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;   /* Space between pill icon and text */
}



/* If using the ERN Institute SVG logo in the header */
.brand-logo{
  height: 96px;          /* Masthead logo */
  width: auto;
  display: block;
}

@media (max-width: 640px){
  .brand-logo{ height: 76px; }
}
/* Rounded "ERN" pill icon.
   To tweak:
   - change width/height for size
   - change border color or background gradient
   - change font-size or letter-spacing for the text inside.
*/
.brand-mark {
  width: 44px;
  height: 30px;
  border-radius: 999px;
  border: 2px solid var(--accent);
  background: radial-gradient(circle at 20% 20%, #e5f3ff 0, #eef2ff 55%, #f9fafb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: var(--accent-dark);
}

/* If you wrap "ERN" in a <span>, this adds tiny horizontal padding inside */
.brand-mark span {
  display: inline-block;
  padding: 0 0.08rem;
}

/* Wordmark text next to icon:
   This uses Cormorant Garamond (loaded in each HTML <head>).
*/
.brand-wordmark .brand-text {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  line-height: 1.15;
}

/* Top line: "ERN INSTITUTE" */
.brand-wordmark .brand-line-1 {
  display: block;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Bottom line: "Experience-Related Neuroplasticity" */
.brand-wordmark .brand-line-2 {
  display: block;
  font-size: 1.05rem;   /* Change this to 1.0rem or 1.1rem if you want smaller/bigger */
  font-weight: 600;     /* 500 for slightly lighter, 700 for bolder */
  letter-spacing: 0.01em;
  color: var(--text-main);
}

/* ============================
   NAVIGATION LINKS
   ============================ */

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.9rem;
}

/* Base nav link style */
.nav a {
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid transparent;
}

/* Hover style */
.nav a:hover {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-main);
}

/* Active page (the one with class="active" in HTML) */
.nav a.active {
  background: var(--accent-soft);
  border-color: rgba(8, 145, 178, 0.4);
  color: var(--accent-dark);
  font-weight: 600;
}

/* ============================
   SECTIONS
   ============================ */

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

/* Slightly narrower layout for text-heavy pages */
.section-narrow {
  max-width: 780px;
}

/* Hero layout = two columns on larger screens */
.hero {
  display: grid;
  gap: 1.75rem;
}

/* On larger screens, hero becomes 2 columns */
@media (min-width: 840px) {
  .hero {
    grid-template-columns: 1.4fr 1fr;   /* Left column slightly wider */
    align-items: center;
  }
}

/* ============================
   BADGE (little pill over hero)
   ============================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(8, 145, 178, 0.05);
  border: 1px solid rgba(8, 145, 178, 0.24);
  font-size: 0.75rem;
  color: var(--accent-dark);
}

.badge-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--accent);
}

/* ============================
   TYPOGRAPHY (headings, text)
   ============================ */

h1, h2, h3 {
  margin: 0;
}

h1 {
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-weight: 600;
  font-size: clamp(2.2rem, 4vw, 2.6rem);  /* tweak size if you like */
  letter-spacing: -0.02em;
  margin-top: 0.6rem;
}


h2 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.3rem;
}

/* Hero descriptive text */
.subtitle {
  margin-top: 0.7rem;
  color: var(--text-muted);
  max-width: 38rem;
}

/* Slightly larger subtitle */
.lead {
  font-size: 1.02rem;
}

/* Muted helper text */
.muted {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ============================
   CARDS & GRID LAYOUTS
   ============================ */

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  padding: 1.4rem 1.5rem;
}

/* “Muted” card – dashed border, no shadow */
.card-muted {
  background: #f9fafb;
  border-style: dashed;
  border-color: var(--border-subtle);
  box-shadow: none;
}

/* 2-column layout used on some sections */
.two-col {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 880px) {
  .two-col {
    grid-template-columns: 1.25fr 1fr;
  }
}

/* 3-column grid used for “Key Areas of Work” boxes */
.grid-3 {
  display: grid;
  gap: 1.4rem;
}

@media (min-width: 880px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ============================
   BUTTONS
   ============================ */

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

/* Base button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

/* Primary (filled) button */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-weight: 600;
}

/* Outline button */
.btn-outline {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--accent);
}

/* ============================
   PILLS (ERNPress, ERN Journal)
   ============================ */

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.76rem;
}

/* ============================
   LISTS & INFO LIST
   ============================ */

ul {
  margin: 0.4rem 0 0.7rem;
  padding-left: 1.15rem;
}

li + li {
  margin-top: 0.18rem;
}

/* Used on the Contact page */
.info-list {
  list-style: none;
  padding-left: 0;
}

.info-list li {
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
}

.info-label {
  font-weight: 600;
  min-width: 80px;
  color: var(--text-muted);
}

/* ============================
   LINKS
   ============================ */

a {
  color: var(--accent-dark);
}

a:hover {
  text-decoration: underline;
}

/* ============================
   FOOTER
   ============================ */

.footer {
  border-top: 1px solid var(--border-subtle);
  background: #f9fafb;
  margin-top: 1rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}


/* Callout box */
.callout{background:var(--accent-soft);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:1.25rem;}
.callout h3{margin-top:0;}

/* ---------------------------
   Mobile nav (hamburger)
---------------------------- */

.header-inner { position: relative; }

.nav-toggle {
  display: none;
  border: 1px solid rgba(0,0,0,0.15);
  background: transparent;
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font: inherit;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }

  .nav {
    display: none;
    position: absolute;
    right: 1rem;
    top: 4.25rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    min-width: 220px;
    padding: 0.6rem;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 16px;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.10);
    z-index: 1000;
  }

  body.nav-open .nav { display: flex; }

  .nav a {
    padding: 0.55rem 0.65rem;
    border-radius: 12px;
    text-decoration: none;
  }
}

/* ---------------------------
   Quieter descriptor badge
---------------------------- */

.badge.badge--descriptor {
  border: 1px solid rgba(0,0,0,0.10);
  background: rgba(0,0,0,0.02);
  color: rgba(0,0,0,0.70);
}

/* ---------------------------
   Logo link: remove underline in all states (override global a:hover underline)
---------------------------- */
a.brand-link,
a.brand-link:visited,
a.brand-link:hover,
a.brand-link:active,
a.brand-link:focus {
  text-decoration: none !important;
  color: inherit !important;
}

a.brand-link * {
  text-decoration: none !important;
  color: inherit !important;
}

a.brand-link:hover {
  cursor: pointer;
}


/* ===== ERN Ecosystem logos (home page) ===== */
.ecosystem-list{
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.ecosystem-item{
  display: flex;
  gap: 16px;
  align-items: center;
}

@media (max-width: 640px){
  .ecosystem-logo{
    height: 48px;
    width: 160px;
    flex: 0 0 160px;
  }
}


.ecosystem-logo{
  height: 58px;          /* Balanced ecosystem logo size */
  width: 220px;          /* Fixed logo column width for alignment */
  flex: 0 0 220px;
  object-fit: contain;
  display: block;
}

.ecosystem-logo--wide{ max-width: 220px; }
.ecosystem-logo--j{ max-width: 220px; }

.ecosystem-kicker{
  font-size: 0.95rem;
  font-weight: 400;
  margin-bottom: 0.15rem;
}


.ecosystem-text{
  line-height: 1.35;
}

.ecosystem-dot{
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 999px;
  background: #274A7D;
  opacity: 0.12;
}