/* ═══════════════════════════════════════════════════════════════
   BETA ALPHA PSI — ALPHA PHI CHAPTER
   Brand design system: Montserrat + Open Sans · Primary Red #C8102E
   Single light theme. No build step.
   ═══════════════════════════════════════════════════════════════ */
:root {
  /* Brand palette */
  --red: #c8102e;
  --red-dark: #9e0c23;
  --red-soft: #fdeaed;
  --red-line: #f3c4cc;

  --gold: #9c7c1e;
  --gold-soft: #f7f0db;
  --green: #2e7d55;
  --green-soft: #e4f1ea;
  --danger: #c0392b;
  --danger-soft: #fbeae8;

  /* Neutrals */
  --ink: #1a1a1a;        /* headings */
  --slate: #333333;      /* body text */
  --muted: #6e6e73;      /* secondary text */
  --faint: #9a9aa0;      /* tertiary */
  --line: #e6e6e6;       /* hairline borders */
  --line-strong: #d6d6d6;
  --bg: #ffffff;
  --bg-alt: #f4f4f4;     /* light gray sections */
  --bg-tint: #fafafa;
  --card: #ffffff;
  --input-bg: #f7f7f8;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(20, 20, 20, 0.05);
  --shadow: 0 4px 18px rgba(20, 20, 20, 0.07);
  --shadow-lg: 0 14px 40px rgba(20, 20, 20, 0.12);
  --shadow-nav: 0 1px 0 var(--line), 0 2px 14px rgba(20, 20, 20, 0.04);

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: all 0.25s var(--ease);
  --transition-fast: all 0.16s var(--ease);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --max-width: 1180px;
  --nav-height: 72px;

  --font-head: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ═══════════════════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--slate);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--red); color: #fff; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

p { color: var(--slate); }

a {
  color: var(--red);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover { color: var(--red-dark); }

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

.icon {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 10000;
  padding: 10px 18px;
  background: var(--red);
  color: #fff;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-to-content:focus { top: 16px; color: #fff; }

/* Keyboard focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* Loading / empty states */
.render-loading,
.render-empty {
  grid-column: 1 / -1;
  padding: 36px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-alt);
}
.render-loading { animation: pulse 1.6s ease-in-out infinite; }
.render-empty code {
  background: var(--bg-alt);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--red);
}

/* ═══════════════════════════════════════════════════════════════
   LAYOUT UTILITIES
   ═══════════════════════════════════════════════════════════════ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: calc(var(--nav-height) + 72px) 0 110px;
}

/* Tab mode: one section visible at a time (driven by app.js). */
body[data-tabs-ready="true"] .section {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}
body[data-tabs-ready="true"] .section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
body[data-tabs-ready="true"] .hero.section.active { display: flex; }

/* Section header block */
.section-head { max-width: 680px; margin-bottom: 52px; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--red);
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 12px;
}
.section-label::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 36px;
  height: 3px;
  background: var(--red);
  border-radius: 2px;
}
.section-label .icon { width: 15px; height: 15px; stroke-width: 2.5; }

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.06rem;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-nav);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 12px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  flex-shrink: 0;
  min-width: 0;
}
.nav-brand img {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  object-fit: contain;
}
.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  gap: 1px;
}
.nav-brand-text strong {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.nav-brand-text span {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--red);
}
.nav-brand:hover .nav-brand-text strong { color: var(--red); }

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-width: 0;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links > li { display: flex; align-items: center; }

.nav-links a,
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 11px;
  border-radius: 99px;
  border: none;
  background: transparent;
  font-family: var(--font-head);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--slate);
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition-fast);
}
.nav-links a:hover,
.nav-dropdown-trigger:hover { color: var(--red); background: var(--bg-alt); }
.nav-links a.active,
.nav-links a[aria-current="page"],
.nav-dropdown-trigger.active,
.nav-dropdown.has-active-child > .nav-dropdown-trigger {
  color: var(--red);
  background: var(--red-soft);
}
.nav-dropdown-chevron {
  width: 14px;
  height: 14px;
  opacity: 0.65;
  transition: transform 0.2s var(--ease);
}
.nav-dropdown.open .nav-dropdown-chevron { transform: rotate(180deg); }

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 196px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
  z-index: 1010;
}
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-head);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--slate);
  white-space: nowrap;
  transition: var(--transition-fast);
}
.nav-dropdown-menu a:hover { color: var(--red); background: var(--bg-alt); }
.nav-dropdown-menu a.active,
.nav-dropdown-menu a[aria-current="page"] {
  color: var(--red);
  background: var(--red-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 99px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8125rem;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-cta:hover { background: var(--red-dark); color: #fff; transform: translateY(-1px); }
.nav-cta .icon { width: 14px; height: 14px; flex-shrink: 0; }

/* Hamburger */
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--bg);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 86vw;
  height: 100vh;
  background: var(--bg);
  border-left: 1px solid var(--line);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.12);
  z-index: 1100;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  padding: calc(var(--nav-height) + 16px) 20px 24px;
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 20, 0.4);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}
.mobile-drawer-overlay.open { opacity: 1; pointer-events: all; }

.mobile-drawer a {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 15px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--slate);
  margin-bottom: 3px;
  transition: var(--transition-fast);
}
.mobile-drawer a:hover,
.mobile-drawer a.active { color: var(--red); background: var(--red-soft); }
.mobile-drawer a .icon { width: 19px; height: 19px; opacity: 0.8; }

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
}
.btn .icon { width: 17px; height: 17px; }

.btn-primary {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  box-shadow: 0 3px 10px rgba(200, 16, 46, 0.22);
}
.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(200, 16, 46, 0.28);
}

.btn-outline {
  background: var(--bg);
  border-color: var(--red);
  color: var(--red);
}
.btn-outline:hover {
  background: var(--red-soft);
  color: var(--red-dark);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--muted);
  padding: 9px 16px;
}
.btn-ghost:hover { color: var(--red); background: var(--bg-alt); }

.btn-disabled {
  background: var(--bg-alt);
  border-color: var(--line);
  color: var(--faint);
  cursor: not-allowed;
  box-shadow: none;
  pointer-events: none;
}

.btn-small { padding: 9px 16px; font-size: 0.82rem; }
.btn-small .icon { width: 14px; height: 14px; }

/* ═══════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════ */
.hero {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 90px;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 12% 18%, rgba(200, 16, 46, 0.04), transparent 42%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 10%, transparent 70%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 10%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  width: 100%;
}

.hero-seal {
  width: 116px;
  height: 116px;
  margin: 0 auto 24px;
  object-fit: contain;
  animation: fadeInUp 0.6s var(--ease) both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 99px;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-bottom: 26px;
  animation: fadeInUp 0.6s 0.05s var(--ease) both;
}
.hero-badge .icon { width: 14px; height: 14px; color: var(--red); stroke-width: 2.5; }

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--ink);
  animation: fadeInUp 0.6s 0.1s var(--ease) both;
}
.hero h1 span {
  display: block;
  color: var(--red);
}

.hero-subtitle {
  font-size: clamp(1.02rem, 2vw, 1.2rem);
  color: var(--muted);
  line-height: 1.7;
  max-width: 620px;
  margin: 18px auto 38px;
  animation: fadeInUp 0.6s 0.2s var(--ease) both;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s 0.3s var(--ease) both;
}

/* Mission statement (home) */
.mission-card {
  position: relative;
  max-width: 880px;
  margin: 48px auto 0;
  padding: 44px 48px;
  text-align: center;
  background: var(--red-soft);
  border: 1px solid var(--red-line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  animation: fadeInUp 0.6s 0.5s var(--ease) both;
}
.mission-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.mission-label .icon { width: 16px; height: 16px; color: var(--red); }
.mission-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mission-text {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.8;
  color: var(--slate);
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════
   WHY BAP? BENEFITS
   ═══════════════════════════════════════════════════════════════ */
.why-purpose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}
.why-purpose__title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.why-purpose__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.why-purpose__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--slate);
}
.why-purpose__check {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--red);
}

.why-chapters-callout {
  background: var(--red-soft);
  border: 1px solid var(--red-line);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  margin-bottom: 40px;
  text-align: center;
}
.why-chapters-callout__title {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 800;
  color: var(--red);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.why-chapters-callout p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--slate);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 22px;
}

.benefit-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
}
.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--red-line);
}

.benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--red-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.benefit-icon .icon { width: 24px; height: 24px; color: var(--red); }

.benefit-card:nth-child(2) .benefit-icon { background: var(--gold-soft); }
.benefit-card:nth-child(2) .benefit-icon .icon { color: var(--gold); }
.benefit-card:nth-child(3) .benefit-icon { background: var(--green-soft); }
.benefit-card:nth-child(3) .benefit-icon .icon { color: var(--green); }
.benefit-card:nth-child(4) .benefit-icon { background: var(--bg-alt); }
.benefit-card:nth-child(4) .benefit-icon .icon { color: var(--slate); }

.benefit-card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 10px; }
.benefit-card p { font-size: 0.92rem; color: var(--muted); line-height: 1.7; }

/* Sub-section inside a tab (embedded alumni inside Why BAP?) */
.subsection {
  margin-top: 80px;
  padding-top: 56px;
  border-top: 1px solid var(--line);
}
.subsection-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; margin-bottom: 10px; }
.subsection-sub { font-size: 1rem; color: var(--muted); max-width: 620px; margin-bottom: 36px; }

/* ═══════════════════════════════════════════════════════════════
   MEMBERSHIP TIERS
   ═══════════════════════════════════════════════════════════════ */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 56px;
}

.tier-card {
  --accent: var(--red);
  --accent-soft: var(--red-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 34px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.tier-card--associate {
  --accent: var(--gold);
  --accent-soft: var(--gold-soft);
}
.tier-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}
.tier-card__accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--accent);
}

.tier-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
}
.tier-card__title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ink);
}
.tier-card__badge {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 11px;
  border-radius: 99px;
  background: var(--accent-soft);
  color: var(--accent);
  white-space: nowrap;
}
.tier-card__desc { font-size: 0.9rem; color: var(--muted); margin-bottom: 22px; line-height: 1.65; }
.tier-card__list {
  list-style: none;
  margin: 0 0 26px;
  font-size: 0.9rem;
  color: var(--slate);
}
.tier-card__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}
.tier-card__list li:last-child { margin-bottom: 0; }
.tier-card__check {
  width: 17px; height: 17px;
  flex-shrink: 0;
  margin-top: 3px;
  stroke: var(--accent);
  stroke-width: 3;
}
.tier-card__footnote {
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.tier-card__footnote .icon { width: 15px; height: 15px; color: var(--accent); margin-top: 2px; }

/* ═══════════════════════════════════════════════════════════════
   FORMS (shared)
   ═══════════════════════════════════════════════════════════════ */
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-family: var(--font-head);
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}
.form-group label .hint { font-weight: 400; color: var(--faint); font-size: 0.8rem; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--input-bg);
  color: var(--slate);
  font-size: 0.92rem;
  transition: var(--transition-fast);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--faint); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--red);
  background: var(--bg);
  box-shadow: 0 0 0 3px var(--red-soft);
}
.form-textarea { resize: vertical; min-height: 110px; font-family: inherit; line-height: 1.55; }
.form-input.error,
.form-select.error,
.form-textarea.error { border-color: var(--danger); box-shadow: 0 0 0 3px var(--danger-soft); }

.form-select { cursor: pointer; appearance: none; }
.select-wrapper { position: relative; }
.select-wrapper::after {
  content: '';
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-top-color: var(--muted);
  pointer-events: none;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.slider-group { display: flex; align-items: center; gap: 16px; }
.slider-group input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--line-strong);
  outline: none;
}
.slider-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--red);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(200, 16, 46, 0.35);
  transition: var(--transition-fast);
}
.slider-group input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--red);
  cursor: pointer;
}
.slider-group input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.slider-value {
  min-width: 50px;
  text-align: center;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--red);
}

.checkbox-row { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.checkbox-row input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--red); cursor: pointer; }
.checkbox-row label { font-size: 0.88rem; color: var(--slate); cursor: pointer; margin-bottom: 0; font-family: var(--font-body); font-weight: 400; }

/* ═══════════════════════════════════════════════════════════════
   ELIGIBILITY CALCULATOR
   ═══════════════════════════════════════════════════════════════ */
.calc-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow);
  max-width: 700px;
  margin: 0 auto;
}

.calc-result {
  display: none;
  margin-top: 26px;
  padding: 22px 26px;
  border-radius: var(--radius);
  animation: fadeInUp 0.4s var(--ease) both;
}
.calc-result.eligible { display: block; background: var(--green-soft); border: 1px solid var(--green); }
.calc-result.ineligible { display: block; background: var(--danger-soft); border: 1px solid var(--danger); }
.calc-result h4 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.calc-result.eligible h4 { color: var(--green); }
.calc-result.ineligible h4 { color: var(--danger); }
.calc-result h4 .icon { width: 20px; height: 20px; }
.calc-result p, .calc-result ul { font-size: 0.9rem; color: var(--slate); }
.calc-result ul { padding-left: 22px; margin-top: 8px; }
.calc-result ul li { margin-bottom: 5px; }
.calc-result__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

.help-callout {
  margin-top: 26px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  display: flex;
  align-items: flex-start;
  gap: 13px;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
}
.help-callout .icon { width: 20px; height: 20px; color: var(--red); flex-shrink: 0; margin-top: 2px; }
.help-callout strong { color: var(--ink); }
.help-callout a { font-weight: 600; text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════════
   E-BOARD
   ═══════════════════════════════════════════════════════════════ */
.eboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 22px;
}
.eboard-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.eboard-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--red-line);
}
.eboard-avatar {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  background: var(--red);
}
.eboard-card:nth-child(even) .eboard-avatar { background: var(--slate); }
.eboard-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 5px; }
.eboard-role {
  font-family: var(--font-head);
  font-size: 0.8rem;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 16px;
  min-height: 2.2em;
  display: flex;
  align-items: center;
  justify-content: center;
}
.eboard-email-row { display: flex; align-items: center; justify-content: center; gap: 8px; }
.eboard-email { font-size: 0.78rem; color: var(--muted); word-break: break-all; }
.eboard-email:hover { color: var(--red); }
.copy-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--muted);
  transition: var(--transition-fast);
  flex-shrink: 0;
}
.copy-btn:hover { border-color: var(--red); color: var(--red); background: var(--red-soft); }
.copy-btn .icon { width: 14px; height: 14px; }

/* ═══════════════════════════════════════════════════════════════
   RECRUITERS WALL
   ═══════════════════════════════════════════════════════════════ */
.recruiters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}
.recruiter-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}
.recruiter-card:hover {
  border-color: var(--red);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.recruiter-name { font-family: var(--font-head); font-weight: 700; font-size: 0.98rem; color: var(--ink); }
.recruiter-category {
  font-family: var(--font-head);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faint);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════
   COMMUNICATION CHANNELS
   ═══════════════════════════════════════════════════════════════ */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 22px;
}
.channel-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.channel-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--red-line);
}
.channel-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--red-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.channel-icon .icon { width: 24px; height: 24px; color: var(--red); }
.channel-card:nth-child(2) .channel-icon { background: var(--gold-soft); }
.channel-card:nth-child(2) .channel-icon .icon { color: var(--gold); }
.channel-card:nth-child(3) .channel-icon { background: var(--green-soft); }
.channel-card:nth-child(3) .channel-icon .icon { color: var(--green); }
.channel-card:nth-child(4) .channel-icon { background: var(--bg-alt); }
.channel-card:nth-child(4) .channel-icon .icon { color: var(--slate); }
.channel-card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 10px; }
.channel-card p { font-size: 0.92rem; color: var(--muted); line-height: 1.7; margin-bottom: 22px; }
.channel-card .btn { margin-top: auto; }

/* ═══════════════════════════════════════════════════════════════
   ALUMNI
   ═══════════════════════════════════════════════════════════════ */
.alumni-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 22px;
}
.alumni-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.alumni-card:hover {
  transform: translateY(-4px);
  border-color: var(--red-line);
  box-shadow: var(--shadow);
}
.alumni-card__header { display: flex; align-items: center; gap: 14px; }
.alumni-card__avatar {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--red);
  display: grid;
  place-items: center;
  font-family: var(--font-head);
  font-weight: 800;
  color: #fff;
  font-size: 1.08rem;
  flex-shrink: 0;
}
.alumni-card:nth-child(even) .alumni-card__avatar { background: var(--slate); }
.alumni-card__name { font-family: var(--font-head); font-weight: 700; font-size: 1.04rem; color: var(--ink); }
.alumni-card__role { font-size: 0.8rem; color: var(--muted); }
.alumni-card__quote {
  font-size: 0.93rem;
  color: var(--slate);
  line-height: 1.65;
  font-style: italic;
  border-left: 3px solid var(--red);
  padding-left: 16px;
}

/* ═══════════════════════════════════════════════════════════════
   APPLY / INTEREST FORM
   ═══════════════════════════════════════════════════════════════ */
.apply-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow);
  max-width: 700px;
  margin: 0 auto;
}
.apply-card h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 6px; }
.apply-card__desc { font-size: 0.92rem; color: var(--muted); margin-bottom: 30px; }

/* Success overlay */
.success-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  background: rgba(20, 20, 20, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
  padding: 20px;
}
.success-overlay.show { opacity: 1; pointer-events: all; }
.success-modal {
  background: var(--card);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 430px;
  width: 100%;
  transform: scale(0.94);
  transition: transform 0.35s var(--ease);
}
.success-overlay.show .success-modal { transform: scale(1); }
.success-icon {
  width: 66px; height: 66px;
  border-radius: 50%;
  background: var(--green-soft);
  display: grid;
  place-items: center;
  margin: 0 auto 22px;
}
.success-icon .icon { width: 32px; height: 32px; color: var(--green); stroke-width: 2.5; }
.success-modal h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 8px; }
.success-modal p { font-size: 0.92rem; color: var(--muted); margin-bottom: 26px; }

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
  padding: 68px 0 32px;
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
.footer-brand h3 { font-size: 1.12rem; font-weight: 800; margin-bottom: 12px; }
.footer-brand p { font-size: 0.88rem; color: var(--muted); line-height: 1.75; max-width: 340px; }
.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faint);
  margin-bottom: 18px;
}
.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--slate);
  margin-bottom: 11px;
  transition: var(--transition-fast);
}
.footer-col a:hover { color: var(--red); transform: translateX(3px); }
.footer-col a .icon { width: 16px; height: 16px; color: var(--muted); }
.footer-col a:hover .icon { color: var(--red); }

.footer-bottom {
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--muted); }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  background: var(--bg);
  transition: var(--transition);
}
.footer-socials a:hover { color: #fff; background: var(--red); border-color: var(--red); transform: translateY(-2px); }
.footer-socials a .icon { width: 18px; height: 18px; }

/* ═══════════════════════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 3000;
  padding: 14px 22px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow-lg);
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 9px;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: all 0.35s var(--ease);
}
.toast.show { opacity: 1; transform: translateY(0); pointer-events: all; }
.toast .icon { width: 18px; height: 18px; color: #6fe09a; stroke-width: 2.5; }

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50%      { opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1080px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + 36px);
    padding-bottom: 64px;
  }
  .mission-card { padding: 32px 24px; margin-top: 40px; }
  .section { padding: calc(var(--nav-height) + 40px) 0 70px; }
  .form-row { grid-template-columns: 1fr; }
  .calc-card, .apply-card { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .why-purpose { padding: 28px 24px; }
  .why-chapters-callout { padding: 28px 24px; }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .hero-cta-group .btn { width: 100%; }
  .nav-brand-text span { display: none; }
  .nav-brand img { width: 34px; height: 34px; }
}

/* ═══════════════════════════════════════════════════════════════
   PRINT
   ═══════════════════════════════════════════════════════════════ */
@media print {
  .navbar, .mobile-drawer, .mobile-drawer-overlay, .hamburger,
  .hero::before, .nav-cta, .footer-socials, .toast, .success-overlay,
  #section-apply, #section-recruiters,
  .skip-to-content, .copy-btn { display: none !important; }
  body { background: #fff; color: #000; }
  .section { padding: 20px 0; }
}