/*
Theme Name: Udaan India
Theme URI: https://udtapavan.in/
Author: Udta Pavan
Description: A custom WordPress theme for the Udta Pavan general aviation platform — India's GA movement, built around the Conference 2027 north star.
Version: 2.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
Text Domain: udaan-india
*/

/* ===== DESIGN TOKENS ===== */
:root {
  /* ── Udta Pavan brand palette ── */
  --blue: #0B3D91;        /* brand navy  */
  --blue-dark: #082d6e;   /* deeper navy for gradients */
  --blue-mid: #0e4db8;    /* mid navy for gradients   */
  --blue-light: #e8eef8;
  --blue-100: #d0ddf2;
  --orange: #F28C28;      /* brand orange — accent    */
  --orange-dark: #d4731a;
  --orange-light: #fef3e2;
  --amber: #d4731a;
  --amber-light: #fef3e2;
  --amber-100: #fde8c0;
  --green: #16a34a;
  --green-light: #f0fdf4;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-900: #0f172a;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-xs: 0 1px 3px rgba(15,23,42,.07);
  --shadow-sm: 0 2px 8px rgba(15,23,42,.08);
  --shadow: 0 8px 30px rgba(15,23,42,.11);
  --shadow-lg: 0 20px 60px rgba(15,23,42,.16);
  --shadow-blue: 0 4px 20px rgba(11,61,145,.28);
  --max: 1140px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--slate-50);
  color: var(--slate-900);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; transition: color .15s; }
a:hover { color: var(--blue-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
p { margin-bottom: .9rem; }

/* ===== LAYOUT ===== */
.wrap {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
}

/* ===== ANNOUNCEMENT BAR ===== */
.announce-bar {
  background: linear-gradient(90deg, var(--blue-dark), var(--blue));
  color: white;
  text-align: center;
  padding: .65rem 1rem;
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .01em;
}
.announce-bar a { color: #bfdbfe; font-weight: 700; }
.announce-bar a:hover { color: white; text-decoration: none; }

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--slate-200);
  box-shadow: var(--shadow-xs);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 88px;
}
.branding a {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.branding a:hover { text-decoration: none; opacity: .88; }
/* Logo image */
.site-logo {
  height: 68px;
  width: auto;
  display: block;
}
/* Text fallback (shown if logo image fails to load) */
.site-logo-text {
  flex-direction: column;
  line-height: 1.2;
  color: var(--blue);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .02em;
}
.logo-tagline {
  font-size: .65rem;
  font-weight: 600;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.main-navigation ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  align-items: center;
  gap: .25rem;
  flex-wrap: wrap;
}
.main-navigation a {
  display: block;
  padding: .45rem .85rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: .9rem;
  color: var(--slate-700);
  transition: background .15s, color .15s;
}
.main-navigation a:hover { background: var(--blue-light); color: var(--blue); text-decoration: none; }
.main-navigation .current-menu-item a,
.main-navigation .current_page_item a { background: var(--blue-light); color: var(--blue); }

/* Last nav item = CTA button */
.main-navigation ul li:last-child a {
  background: var(--blue);
  color: white;
  box-shadow: var(--shadow-blue);
  padding: .5rem 1.1rem;
}
.main-navigation ul li:last-child a:hover {
  background: var(--blue-dark);
  color: white;
}

/* ===== BUTTONS ===== */
.btn, .button, .wp-block-button__link, input[type=submit] {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .85rem 1.6rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  border: none;
  transition: all .18s;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none !important;
}
.btn-primary, .button {
  background: var(--blue);
  color: white;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover, .button:hover {
  background: var(--blue-dark);
  box-shadow: 0 6px 24px rgba(29,78,216,.40);
  transform: translateY(-1px);
  color: white;
  text-decoration: none;
}
.btn-secondary {
  background: white;
  color: var(--slate-900);
  border: 1.5px solid var(--slate-200);
}
.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-1px);
  text-decoration: none;
}
.btn-row { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ===== SECTION BASE ===== */
.section { padding: 4.5rem 0; }

/* ===== LABELS & HEADINGS ===== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--blue);
  background: var(--blue-light);
  padding: .3rem .85rem;
  border-radius: 999px;
  margin-bottom: .85rem;
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  margin-bottom: .75rem;
  font-weight: 800;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--slate-600);
  max-width: 65ch;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--amber);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .78rem;
  margin-bottom: .75rem;
}
.small-label {
  font-size: .72rem;
  font-weight: 700;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ===== CARDS ===== */
.card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--blue-mid) 60%, #0369a1 100%);
  padding: 5.5rem 0 4.5rem;
  border-bottom: none;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(255,255,255,.07) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -120px; left: -80px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,.05) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -.025em;
  font-weight: 900;
  margin-bottom: 1.1rem;
  color: white;
}
.hero h1 span { color: #93c5fd; }
.hero p.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,.88);
  max-width: 56ch;
  margin-bottom: 1.75rem;
  line-height: 1.7;
}
.hero p.hero-sub strong { color: white; }
.hero .eyebrow { color: #fbbf24; }
.hero .btn-primary {
  background: white;
  color: var(--blue-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.hero .btn-primary:hover {
  background: #f0f9ff;
  color: var(--blue-dark);
  transform: translateY(-1px);
}
.hero .btn-secondary {
  background: rgba(255,255,255,.15);
  color: white;
  border-color: rgba(255,255,255,.4);
}
.hero .btn-secondary:hover {
  background: rgba(255,255,255,.25);
  color: white;
  border-color: rgba(255,255,255,.65);
  text-decoration: none;
}
.hero-stats { display: flex; gap: 2rem; margin-top: 2rem; flex-wrap: wrap; }
.stat-num { font-size: 2rem; font-weight: 900; color: #93c5fd; line-height: 1; display: block; }
.stat-label { font-size: .75rem; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .07em; margin-top: .2rem; display: block; }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero { padding: 4rem 0 3rem; }
.page-hero .section-label { display: inline-flex; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 900; letter-spacing: -.025em; margin-bottom: .75rem; }
.page-hero p { font-size: 1.1rem; color: var(--slate-600); max-width: 58ch; line-height: 1.7; margin-bottom: 1.5rem; }

/* Hero Card */
.hero-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--slate-200);
}
.hero-card .tag {
  display: inline-block;
  background: var(--amber-light);
  color: var(--amber);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .3rem .8rem;
  border-radius: 999px;
  margin-bottom: .9rem;
  border: 1px solid var(--amber-100);
}
.hero-card h3 { font-size: 1.1rem; margin-bottom: .6rem; font-weight: 700; }
.hero-card p { font-size: .9rem; color: var(--slate-600); margin-bottom: 1rem; }
.countdown-box {
  background: linear-gradient(135deg, var(--blue-light), var(--blue-100));
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  text-align: center;
  margin-bottom: 1rem;
  border: 1px solid var(--blue-100);
}
.countdown-label { font-size: .72rem; color: var(--blue); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.countdown-value { font-size: 2rem; font-weight: 900; color: var(--blue-dark); line-height: 1.2; }
.checklist { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .45rem; }
.checklist li { display: flex; align-items: flex-start; gap: .5rem; font-size: .88rem; color: var(--slate-700); }
.checklist li::before { content: '✓'; color: var(--green); font-weight: 900; flex-shrink: 0; font-size: .85rem; margin-top: .1rem; }

/* ===== GRIDS ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }

/* ===== PERSONA CARDS ===== */
.persona-card { padding: 1.75rem; }
.persona-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: .6rem; margin-top: .4rem; }
.persona-card p { font-size: .9rem; color: var(--slate-600); margin-bottom: 1rem; }
.persona-a { border-top: 3px solid var(--blue); }
.persona-a .small-label { color: var(--blue); }
.persona-b { border-top: 3px solid var(--green); }
.persona-b .small-label { color: var(--green); }
.persona-c { border-top: 3px solid var(--amber); }

/* ===== FEATURE / SECTION CARDS ===== */
.feature-card { padding: 1.75rem; }
.feature-card .sec-icon { font-size: 2rem; margin-bottom: .75rem; }
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .5rem; }
.feature-card p { font-size: .9rem; color: var(--slate-600); margin-bottom: 1rem; line-height: 1.6; }
.feature-card .cta-link { font-size: .85rem; font-weight: 600; color: var(--blue); }
.feature-card .cta-link::before { content: '→ '; }
.card-discover { background: linear-gradient(135deg, var(--blue-light), var(--blue-100)); border: 1px solid var(--blue-100); }
.card-involved { background: linear-gradient(135deg, var(--green-light), #dcfce7); border: 1px solid #bbf7d0; }
.card-involved h3, .card-involved .cta-link { color: var(--green); }
.card-community { background: linear-gradient(135deg, #fef9c3, #fef08a); border: 1px solid #fde047; }
.card-community h3, .card-community .cta-link { color: #713f12; }
.card-industry { background: linear-gradient(135deg, var(--amber-light), var(--amber-100)); border: 1px solid #fcd34d; }
.card-industry h3, .card-industry .cta-link { color: var(--amber); }
.card-conference {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border: none; color: white;
}
.card-conference h3 { color: white; }
.card-conference p { color: rgba(255,255,255,.82); }
.card-conference .cta-link { color: #bfdbfe; }
.card-conference:hover { box-shadow: 0 12px 40px rgba(29,78,216,.35); }
.card-conference.span-2 { grid-column: span 2; }
.conf-badge {
  display: inline-block;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  padding: .3rem .9rem;
  font-size: .75rem;
  font-weight: 700;
  color: white;
  letter-spacing: .05em;
  margin-bottom: .75rem;
}

/* ===== CTA BAND ===== */
.cta-band {
  background: linear-gradient(135deg, var(--blue-light), white);
  border: 1px solid var(--blue-100);
  border-radius: calc(var(--radius) + 6px);
  padding: 2.25rem;
}
.cta-card { padding: 1.4rem; }
.cta-card h3 { font-size: 1rem; margin-bottom: .75rem; }

/* ===== CONFERENCE SECTION ===== */
.conf-section {
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--blue-mid) 60%, #0369a1 100%);
  color: white;
  padding: 5rem 0;
}
.conf-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; align-items: start; }
.conf-track {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-sm);
  padding: 1rem;
}
.conf-track h4 { font-size: .88rem; color: white; margin-bottom: .25rem; font-weight: 700; }
.conf-track p { font-size: .8rem; color: rgba(255,255,255,.75); margin: 0; }
.conf-tracks { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin: 1.5rem 0; }
.count-row { display: flex; gap: 2rem; margin: 1.75rem 0; flex-wrap: wrap; }
.count-num { font-size: 2rem; font-weight: 900; color: white; display: block; line-height: 1; }
.count-label { font-size: .72rem; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .07em; margin-top: .25rem; display: block; }
.conf-register-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: 0 24px 80px rgba(0,0,0,.25);
}
.conf-register-box h3 { color: var(--slate-900); font-size: 1.2rem; margin-bottom: .4rem; font-weight: 700; }
.conf-register-box p { color: var(--slate-600); font-size: .88rem; margin-bottom: 1.25rem; }

/* ===== FORMS ===== */
.form-field,
form input[type=text],
form input[type=email],
form select,
form textarea {
  width: 100%;
  padding: .85rem 1.1rem;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: .92rem;
  margin-bottom: .75rem;
  outline: none;
  background: white;
  color: var(--slate-900);
  transition: border-color .15s, box-shadow .15s;
}
.form-field:focus,
form input:focus,
form select:focus,
form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(29,78,216,.1);
}
form input[type=submit] {
  width: 100%;
  background: var(--blue);
  color: white;
  border: none;
  box-shadow: var(--shadow-blue);
  font-weight: 700;
}
form input[type=submit]:hover { background: var(--blue-dark); transform: translateY(-1px); }

/* ===== NEWSLETTER ===== */
.nl-section { background: white; border-top: 1px solid var(--slate-200); }
.nl-box {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  color: white;
}
.nl-box h2 { color: white; font-size: 2rem; margin-bottom: .75rem; }
.nl-box p { color: rgba(255,255,255,.82); max-width: 55ch; margin: 0 auto 2rem; }
.nl-form { display: flex; gap: .75rem; max-width: 520px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.nl-input { flex: 1; min-width: 240px; padding: .85rem 1.3rem; border-radius: 999px; border: none; font: inherit; font-size: .95rem; outline: none; }
.nl-btn { padding: .85rem 1.5rem; background: var(--amber); color: white; border: none; border-radius: 999px; font-weight: 700; cursor: pointer; }
.nl-btn:hover { background: #92400e; }

/* ===== COMMUNITY ===== */
.community-section { background: var(--slate-100); }
.event-card { padding: 1.5rem; }
.event-date { font-size: .78rem; font-weight: 700; color: var(--amber); text-transform: uppercase; letter-spacing: .07em; margin-bottom: .4rem; }
.event-card h3 { font-size: 1rem; margin-bottom: .4rem; font-weight: 700; }
.event-card p { font-size: .88rem; color: var(--slate-600); margin-bottom: .75rem; }
.tag-pill { display: inline-block; background: var(--slate-100); color: var(--slate-600); border-radius: 999px; padding: .2rem .7rem; font-size: .75rem; font-weight: 600; }
.tag-online { background: var(--green-light); color: var(--green); }
.tag-city { background: var(--blue-light); color: var(--blue); }

/* ===== ECOSYSTEM ===== */
.eco-card { padding: 1.4rem; text-align: center; }
.eco-icon { font-size: 2rem; margin-bottom: .5rem; }
.eco-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: .25rem; }
.eco-card p { font-size: .8rem; color: var(--slate-500); margin: 0; }
.eco-cta-strip {
  background: var(--amber-light);
  border: 1px solid var(--amber-100);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.eco-cta-strip h3 { margin: 0 0 .25rem; font-size: 1.1rem; }
.eco-cta-strip p { margin: 0; color: var(--slate-600); font-size: .9rem; }

/* ===== MOVEMENT SECTION ===== */
.movement-section { background: linear-gradient(160deg, var(--slate-50), var(--blue-light)); }
.movement-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; }
.movement-quote {
  font-size: 1.6rem; font-weight: 800; line-height: 1.3; color: var(--slate-900);
  border-left: 4px solid var(--blue); padding-left: 1.25rem; margin: 1.5rem 0; letter-spacing: -.015em;
}
.move-step {
  display: flex; gap: 1rem; align-items: flex-start; padding: 1.1rem;
  background: white; border-radius: var(--radius-sm); border: 1px solid var(--slate-200);
  margin-bottom: .75rem; box-shadow: var(--shadow-xs);
}
.move-step-num {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  color: white; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: .9rem; flex-shrink: 0; box-shadow: var(--shadow-blue);
}
.move-step h4 { font-size: .95rem; margin-bottom: .2rem; font-weight: 700; }
.move-step p { font-size: .85rem; color: var(--slate-600); margin: 0; }

/* ===== POSTS ===== */
.post-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(3, 1fr); }
.post-card {
  background: white; border: 1px solid var(--slate-200); border-radius: var(--radius);
  padding: 1.4rem; box-shadow: var(--shadow-sm); transition: box-shadow .2s, transform .2s;
}
.post-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.post-card h3 { margin: .4rem 0 .5rem; font-size: 1rem; font-weight: 700; }
.post-card h3 a { color: var(--slate-900); }
.post-card h3 a:hover { color: var(--blue); text-decoration: none; }
.meta { color: var(--slate-400); font-size: .85rem; }
.list-clean { list-style: none; padding: 0; }
.list-clean li { padding: .4rem 0; border-bottom: 1px solid var(--slate-200); font-size: .9rem; }
.list-clean li:last-child { border-bottom: none; }

/* ===== ARCHIVE / SINGLE ===== */
.archive-header { padding: 2.5rem 0 1.5rem; }
.archive-header h1 { font-size: 2rem; font-weight: 800; }
.single-content, .page-content {
  background: white; border: 1px solid var(--slate-200); border-radius: var(--radius);
  padding: 2.5rem; box-shadow: var(--shadow-sm);
}
.single-content h1, .page-content h1 { font-size: 2rem; font-weight: 800; margin-bottom: 1rem; }
.single-content h2 { font-size: 1.5rem; font-weight: 700; margin: 1.75rem 0 .75rem; }
.single-content p { color: var(--slate-700); line-height: 1.75; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--blue-dark);
  color: rgba(255,255,255,.6);
  padding: 0 0 2rem;
  border-top: 4px solid var(--orange);
}
.footer-inner { padding: 3rem 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
/* Brand column — logo + tagline + blurb */
.footer-brand { display: flex; flex-direction: column; gap: 1rem; }
.footer-logo {
  height: 72px;
  width: auto;
  display: block;
  /* Invert all paths to white; orange flame also becomes white — clean on dark */
  filter: brightness(0) invert(1);
}
.footer-brand p {
  font-size: .875rem;
  line-height: 1.65;
  max-width: 28ch;
  color: rgba(255,255,255,.65);
}
.footer-tagline {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--orange);
}
/* Nav columns */
.footer-col h4 {
  color: white;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 1.1rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer-col ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.footer-col a {
  color: rgba(255,255,255,.6);
  font-size: .875rem;
  transition: color .15s;
}
.footer-col a:hover { color: var(--orange); text-decoration: none; }
/* Bottom bar */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}
.footer-badge {
  background: var(--orange);
  color: white;
  padding: .28rem .85rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .02em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .hero-grid, .conf-grid, .movement-grid { grid-template-columns: 1fr; }
  .grid-3, .post-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .conf-tracks { grid-template-columns: 1fr; }
  .card-conference.span-2 { grid-column: span 1; }
  .hero { padding: 3.5rem 0 3rem; }
}
/* ===== MOBILE HAMBURGER ===== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background .15s;
}
.nav-toggle:hover { background: var(--blue-light); }
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--slate-700);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
  transform-origin: center;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .grid-3, .grid-2, .post-grid, .footer-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2.2rem; }
  .nl-input { min-width: unset; }
  .count-row { gap: 1rem; }
  .eco-cta-strip { flex-direction: column; }

  /* Hide desktop nav, show hamburger */
  .main-navigation { display: none; }
  .main-navigation.nav-open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: white;
    border-bottom: 1px solid var(--slate-200);
    box-shadow: var(--shadow);
    z-index: 200;
    padding: .75rem 0;
  }
  .main-navigation.nav-open ul {
    flex-direction: column;
    gap: 0;
    padding: 0 1.25rem;
  }
  .main-navigation.nav-open ul li a {
    display: block;
    padding: .8rem .5rem;
    border-bottom: 1px solid var(--slate-100);
    border-radius: 0;
  }
  .main-navigation.nav-open ul li:last-child a {
    margin-top: .5rem;
    border-radius: 999px;
    text-align: center;
  }
  .nav-toggle { display: flex; }

  /* Make site-header position:relative so mobile menu anchors to it */
  .site-header { position: sticky; }
}