/* ==========================================================================
   Media Buyers Africa — style.css
   Identity: deep green base, mustard gold accent, Space Grotesk.
   Family resemblance to XCOD, distinct palette (per brand master doc §9).
   ========================================================================== */

:root {
  --ink:        #0E1F18;   /* deep green-black — dark sections */
  --deep:       #14291F;   /* dark surface */
  --paper:      #F5F3EC;   /* warm bone — light body background */
  --card:       #FFFFFF;
  --text:       #1C231F;   /* body text on light */
  --text-soft:  #4C554F;
  --text-inv:   #EDE9DC;   /* body text on dark */
  --text-inv-soft: #B9BFB3;
  --gold:       #D9A526;   /* mustard gold accent */
  --gold-deep:  #8A6614;   /* gold for text on light backgrounds (contrast-safe) */
  --line:       rgba(28, 35, 31, 0.14);
  --line-inv:   rgba(237, 233, 220, 0.16);

  --font: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --container: 1120px;
  --radius: 10px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  overflow-x: hidden;               /* guards against horizontal bleed */
  scroll-behavior: smooth;
  scroll-padding-top: 84px;         /* offset for sticky header on anchor jumps */
}

body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Type helpers ---------- */
.eyebrow,
.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 14px;
}

.section-eyebrow-dark { color: var(--gold); }

.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.section-title-dark { color: var(--text-inv); }

.section-sub {
  color: var(--text-soft);
  max-width: 560px;
  margin-bottom: 40px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-gold {
  background: var(--gold);
  color: var(--ink);
}
.btn-gold:hover { background: #E4B33B; }

.btn-ghost {
  border-color: var(--line-inv);
  color: var(--text-inv);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

.btn-outline {
  border-color: var(--line);
  background: transparent;
  color: var(--text);
}
.btn-outline:hover { border-color: var(--gold-deep); color: var(--gold-deep); }

.btn-small { padding: 9px 18px; font-size: 0.88rem; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 31, 24, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-inv);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-name {
  font-weight: 700;
  color: var(--text-inv);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-accent { color: var(--gold); }

.header-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  color: var(--text-inv-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-link:hover { color: var(--gold); }

/* ---------- Hero ---------- */
.hero {
  background: var(--ink);
  color: var(--text-inv);
  padding: 96px 0 110px;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 48px;
  align-items: center;
}

.eyebrow { color: var(--gold); }

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-sub {
  color: var(--text-inv-soft);
  font-size: 1.08rem;
  max-width: 540px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--text-inv-soft);
}

.hero-network {
  width: 100%;
  max-width: 380px;
  justify-self: end;
}

.net-lines line {
  stroke: rgba(217, 165, 38, 0.28);
  stroke-width: 1;
}

.net-nodes circle {
  fill: var(--gold);
  opacity: 0.85;
}

/* ---------- Manifesto ---------- */
.manifesto { padding: 96px 0; }

.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.manifesto-item {
  border-top: 2px solid var(--gold);
  padding-top: 20px;
}

.manifesto-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.manifesto-item p { color: var(--text-soft); font-size: 0.97rem; }

/* ---------- Levels ---------- */
.levels {
  padding: 96px 0;
  background: #EDEAE0;   /* one step deeper than --paper for section rhythm */
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.level-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}

.level-card-featured { border-color: var(--gold); }

.level-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 12px;
}

.level-promise {
  font-size: 1.14rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 12px;
}

.level-body {
  color: var(--text-soft);
  font-size: 0.95rem;
  margin-bottom: 24px;
  flex-grow: 1;   /* keeps buttons aligned across cards */
}

/* ---------- Roadmap ---------- */
.roadmap { padding: 96px 0; }

.roadmap-list {
  list-style: none;
  margin-top: 40px;
  display: grid;
  gap: 0;
}

.roadmap-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.roadmap-step:last-child { border-bottom: 1px solid var(--line); }

.step-index {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold-deep);
}

.roadmap-step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.step-status {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--gold);
  color: var(--ink);
  padding: 3px 10px;
  border-radius: 999px;
}

.roadmap-step p:not(.step-index) { color: var(--text-soft); max-width: 640px; }

/* ---------- Join form ---------- */
.join {
  background: var(--ink);
  padding: 96px 0 110px;
}

.join-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

.join-sub { color: var(--text-inv-soft); max-width: 420px; }

.founding-form {
  background: var(--deep);
  border: 1px solid var(--line-inv);
  border-radius: var(--radius);
  padding: 30px 28px;
}

/* ---------- Two-step form ---------- */
.form-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-inv-soft);
}

.progress-dots { display: inline-flex; gap: 6px; }

.progress-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-inv);
}

.progress-dots .dot-active { background: var(--gold); }

.form-step { display: none; }
.form-step.is-active { display: block; }

.form-nav {
  display: flex;
  gap: 12px;
  margin-top: 6px;
}

.form-nav .btn-back { flex: 0 0 auto; }
.form-nav .btn-submit { flex: 1; margin-top: 0; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field { margin-bottom: 18px; }

.form-field label,
.form-levels legend {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-inv);
  margin-bottom: 7px;
}

.form-field input,
.form-field select {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;   /* 16px minimum prevents iOS Safari auto-zoom on focus */
  color: var(--text-inv);
  background: var(--ink);
  border: 1px solid var(--line-inv);
  border-radius: 8px;
  padding: 12px 14px;
}

.form-field textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;   /* 16px minimum prevents iOS Safari auto-zoom on focus */
  color: var(--text-inv);
  background: var(--ink);
  border: 1px solid var(--line-inv);
  border-radius: 8px;
  padding: 12px 14px;
  resize: vertical;
  min-height: 84px;
}

.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-inv-soft); }

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
}

.label-hint {
  font-weight: 400;
  color: var(--text-inv-soft);
}

/* Multi-select chips: platforms used before */
.form-checks { border: none; }

.check-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.check-chip {
  position: relative;
  display: block;
  cursor: pointer;
}

.check-chip input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.check-chip span {
  display: block;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-inv-soft);
  border: 1px solid var(--line-inv);
  border-radius: 8px;
  padding: 10px 6px;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.check-chip input:checked + span {
  border-color: var(--gold);
  color: var(--ink);
  background: var(--gold);
}

.check-chip input:focus-visible + span {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.form-levels { border: none; }

.level-radios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.level-radio {
  position: relative;
  display: block;
  cursor: pointer;
}

.level-radio input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.level-radio span {
  display: block;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-inv-soft);
  border: 1px solid var(--line-inv);
  border-radius: 8px;
  padding: 11px 8px;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.level-radio input:checked + span {
  border-color: var(--gold);
  color: var(--ink);
  background: var(--gold);
}

.level-radio input:focus-visible + span {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Honeypot: visually removed, still in the DOM for bots */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.btn-submit {
  width: 100%;
  margin-top: 6px;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin-top: 14px;
  font-size: 0.92rem;
  min-height: 1.4em;
}

.form-status.is-success { color: var(--gold); }
.form-status.is-error   { color: #E8896B; }

.form-privacy {
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--text-inv-soft);
}

.form-privacy a { color: var(--gold); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  border-top: 1px solid var(--line-inv);
  padding: 40px 0;
  color: var(--text-inv-soft);
  font-size: 0.88rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand .brand-name { font-size: 1.02rem; }

.footer-tag { margin-top: 6px; }

.footer-meta { text-align: right; }

.footer-meta p { margin-bottom: 6px; }

.footer-meta a { color: var(--gold); text-decoration: none; }
.footer-meta a:hover { text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-network { display: none; }
  .manifesto-grid,
  .levels-grid { grid-template-columns: 1fr; }
  .join-inner { grid-template-columns: 1fr; gap: 36px; }
  .header-nav .nav-link { display: none; }   /* keep header minimal on mobile: brand + CTA */

  /* Tighter vertical rhythm on smaller screens */
  .manifesto, .levels, .roadmap { padding: 64px 0; }
  .join { padding: 64px 0 80px; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }

  .hero { padding: 56px 0 64px; }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; text-align: center; }

  .brand-name { font-size: 0.95rem; }
  .btn-small { padding: 8px 14px; font-size: 0.82rem; }

  .manifesto, .levels, .roadmap { padding: 52px 0; }
  .join { padding: 52px 0 64px; }

  .level-card { padding: 24px 20px; }

  .roadmap-step { grid-template-columns: 48px 1fr; gap: 14px; padding: 22px 0; }
  .step-index { font-size: 1.1rem; }

  .founding-form { padding: 22px 16px; }
  .form-field { margin-bottom: 15px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .level-radios { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .level-radio span { font-size: 0.78rem; padding: 10px 4px; }
  .check-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }

  .form-nav { flex-direction: row; }

  .footer-inner { flex-direction: column; }
  .footer-meta { text-align: left; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}