/* =========================================================
   MOBILE LAYER
   Targets phones 360–414px wide (Brazil's top-5 most common
   resolutions per Statcounter, Apr 2026). Layered ON TOP of
   styles.css so the desktop intent is preserved; mobile rules
   only activate at the configured breakpoints.
   ========================================================= */

/* =========================================================
   HAMBURGER + MOBILE MENU
   ========================================================= */
.topnav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--motion-fast) var(--ease-standard);
}
.topnav-hamburger:hover { border-color: var(--border-default); }
.topnav-hamburger:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.hamburger-bar {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text-primary);
  transition:
    transform var(--motion-base) var(--ease-emphasized),
    opacity var(--motion-base) var(--ease-standard);
}
.topnav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}
.topnav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.topnav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--canvas-dark);
  z-index: 110;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-base) var(--ease-standard);
  overflow: hidden;
  isolation: isolate;
}
.mobile-menu-close {
  position: absolute;
  top: 16px;
  right: var(--container-pad);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  z-index: 1;
  transition: border-color var(--motion-fast) var(--ease-standard);
}
.mobile-menu-close:hover { border-color: var(--border-default); }
.mobile-menu-close:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.mobile-menu[hidden] { display: block; visibility: hidden; }
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-inner {
  width: 100%;
  height: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 78px var(--container-pad) 20px;
  display: flex;
  flex-direction: column;
}
.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  /* Take the available height between the top padding and the foot;
     scroll internally if there are more links than fit. Keeps the
     share + lang foot anchored at the viewport bottom. */
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 0;
  font-family: var(--display);
  font-size: clamp(1.5rem, 1.2rem + 2vw, 2.25rem);
  line-height: 1;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--motion-fast) var(--ease-standard);
}
.mobile-menu-link:hover { color: var(--gold-200); }
.mobile-menu-link.active { color: var(--gold-200); }
.mobile-menu-link.is-soon {
  color: var(--text-muted);
}
.mobile-menu-link-num {
  display: inline-block;
  font: 500 11px/1 var(--mono);
  color: var(--gold-200);
  letter-spacing: 0.06em;
  align-self: flex-start;
  margin-top: 10px;
  min-width: 24px;
}
.mobile-menu-link.is-soon .mobile-menu-link-num { color: var(--text-muted); }
.mobile-menu-link .badge-soon {
  position: static;
  font: 600 9px/1 var(--body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 6px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  background: rgba(11, 11, 14, 0.92);
  white-space: nowrap;
  align-self: center;
  margin-left: auto;
}
.mobile-menu-link-label { flex: 1; }

.mobile-menu-foot {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: auto;
  padding-top: 32px;
}
.mobile-menu-foot-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.mobile-menu-foot-label {
  font: 600 10px/1 var(--body);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.mobile-menu-share-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mobile-menu-share-actions .form-share-btn {
  width: 100%;
  justify-content: center;
}

body.mobile-menu-open {
  overflow: hidden;
}

/* =========================================================
   TOPNAV — MOBILE LAYOUT
   ========================================================= */
@media (max-width: 720px) {
  .topnav {
    /* Flush to the viewport top, edge-to-edge — no floating-card gap
       on mobile (the card aesthetic doesn't survive the narrow
       width). */
    top: 0;
    margin-top: 0;
    padding: 0;
    max-width: 100%;
  }
  .topnav-inner {
    gap: 12px;
    padding: 10px 14px;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    border-top: 0;
  }
  .topnav-logo-word {
    height: 36px;
    margin: -4px 0;
  }
  .topnav-right {
    gap: 8px;
    /* Push the CTA + hamburger group to the right edge. The desktop
       layout relies on `.topnav-links { flex: 1 }` as the spacer, but
       that's hidden on mobile, so this group otherwise packs next to
       the logo. */
    margin-left: auto;
  }

  /* Hide desktop-only nav elements; mobile menu replaces them */
  .topnav .share-wrap,
  .topnav .lang {
    display: none;
  }
  .topnav-hamburger { display: inline-flex; }

  /* Keep CTA visible but compact */
  .topnav .btn-primary.btn-sm {
    height: 36px;
    padding: 0 12px;
    font-size: 10px;
    letter-spacing: 0.08em;
  }
}

/* On very narrow screens, drop CTA label to give the hamburger room.
   The user can still reach the form via the mobile menu. */
@media (max-width: 380px) {
  .topnav .btn-primary.btn-sm {
    padding: 0 10px;
    font-size: 9.5px;
  }
}

/* =========================================================
   HERO — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .hero {
    min-height: clamp(520px, 72vh, 720px);
    align-items: flex-end;
  }
  .hero-content {
    padding: var(--space-7) var(--container-pad) var(--space-6);
  }
  .hero-headline {
    font-size: clamp(2.5rem, 1.5rem + 4vw, 3.5rem);
    line-height: 0.98;
    max-width: 14ch;
    margin-bottom: var(--space-4);
  }
  .hero-eyebrow-row { margin-bottom: var(--space-4); }
  .hero-deck {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: var(--space-5);
  }
  .hero-cta-row {
    /* Stacked CTAs on mobile: primary on top, secondary below. DOM
       order is secondary → primary (matches the horizontal "primary
       on the right" rule), so reverse it visually here. */
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 10px;
  }
  .hero-cta-row .btn {
    width: 100%;
  }
}

/* =========================================================
   MAP SECTION — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .map-section {
    padding: var(--space-7) 0 var(--space-6);
  }
  .map-head {
    margin-bottom: var(--space-5);
    gap: var(--space-3);
  }
  .map-stage {
    padding: 14px;
  }
  .map-tooltip {
    min-width: 0;
    max-width: min(260px, calc(100vw - 48px));
    padding: 10px 12px 12px;
  }
  .map-tooltip .ttl-state {
    font-size: 16px;
  }
  .map-legend {
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    font-size: 10.5px;
  }

  .how-it-works { margin-top: var(--space-6); }
  .how-head { margin-bottom: var(--space-5); }
  .map-cta-row { margin-top: var(--space-5); }
  .map-cta-row .btn { width: 100%; }
}

/* =========================================================
   FORM SECTION — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .form-section {
    padding: var(--space-7) 0 var(--space-7);
  }
  .form-head {
    margin-bottom: var(--space-5);
  }
  .form-toggle-wrap {
    display: block;
    margin-bottom: var(--space-5);
  }
  .form-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
  }
  .form-toggle button {
    padding: 12px 6px;
    font-size: 10px;
    letter-spacing: 0.06em;
    line-height: 1.15;
    text-align: center;
  }
  .form-card {
    padding: 20px 18px;
  }
  .form-scope {
    padding: 10px 12px;
    gap: 8px;
  }
  .form-scope-text {
    font-size: 12.5px;
    line-height: 1.45;
  }

  .chip-group { gap: 6px; }
  .chip { height: 36px; padding: 0 12px; font-size: 12px; }

  .stepper-row {
    gap: 12px;
    padding: 6px 4px;
  }
  .stepper-label { font-size: 13px; }
  .stepper-btn { width: 36px; height: 36px; font-size: 18px; }
  .stepper-value { min-width: 36px; height: 36px; }

  .check { padding: 12px; gap: 10px; }
  .check-text { font-size: 13px; line-height: 1.5; }

  .form-submit-row .btn { height: 52px; }

  .form-share-row { margin-top: var(--space-5); }
  .form-share-actions { gap: 8px; }
}

/* =========================================================
   FOOTER — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .footer {
    padding: var(--space-7) 0 var(--space-5);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .footer-brand { grid-column: 1; }
  .footer-rule { margin: var(--space-5) 0 var(--space-4); }
}

/* =========================================================
   RULES PAGE — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .rules-hero { min-height: clamp(360px, 48vh, 480px); }
  .rules-hero-content {
    padding: var(--space-7) var(--container-pad) var(--space-5);
  }
  .rules-hero-content h1 {
    font-size: clamp(2rem, 1.4rem + 3.5vw, 3rem);
  }
  .rules-body {
    padding: var(--space-7) 0 var(--space-8);
    gap: var(--space-5);
  }
  .rules-tabs {
    margin-top: var(--space-5);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .rules-tabs::-webkit-scrollbar { display: none; }
  .rules-tab {
    padding: 12px 14px 10px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .rules-toc {
    padding: 14px 14px 6px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.015);
  }
  .rules-toc h6 { margin-bottom: var(--space-3); }
  .rules-toc a {
    padding: 8px 0;
    font-size: 12.5px;
  }
  .rules-content h2 {
    font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2rem);
  }
  .rules-content p, .rules-content ul li {
    font-size: 15px;
    line-height: 1.6;
  }
  .rules-content .judge-card { padding: 14px; }
  .rules-content .mission-block { padding: 20px 16px; }
  .rules-content .callout { padding: 14px 16px; }
  .provisional { padding: 12px 14px; gap: 10px; margin-bottom: var(--space-5); }
  .provisional p { font-size: 13px; }
  .rules-footer-cta { gap: 10px; margin-top: var(--space-7); }
  .rules-footer-cta .btn { width: 100%; }
}

/* =========================================================
   COMING SOON PAGES — MOBILE
   ========================================================= */
@media (max-width: 720px) {
  .cs-hero { min-height: clamp(560px, 80vh, 760px); }
  .cs-content {
    padding: var(--space-7) var(--container-pad);
    gap: var(--space-6);
  }
  .cs-headline-block h1 {
    font-size: clamp(2.5rem, 1.7rem + 4.5vw, 4.5rem);
  }
  .cs-meta-block { padding-top: var(--space-4); }
  .cs-meta-grid { gap: var(--space-4); padding-top: var(--space-4); }
  .cs-cta-row {
    /* Stacked CTAs on mobile: primary on top, secondary below. */
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 10px;
  }
  .cs-cta-row .btn { width: 100%; }
  .cs-marquee { padding: 14px 0; }
  .cs-marquee span { font-size: 10px; }
}

/* =========================================================
   SHARE MODAL — MOBILE
   Bump z-index so it sits above mobile-menu when opened
   from within the overlay.
   ========================================================= */
@media (max-width: 720px) {
  .share-modal { z-index: 130; padding: 16px; }
  .share-modal-card { padding: 18px; max-height: calc(100vh - 32px); }
  .share-modal-head { margin-bottom: 16px; gap: 12px; }
  .share-modal-title { font-size: 16px; }
  .ig-story { max-width: 240px; }
}

/* (Removed `html, body { overflow-x: hidden }` here — it broke
   `position: sticky` on the topnav, particularly in mobile Safari.
   If horizontal overflow shows up, fix the offending element
   directly instead of clipping at the document root.) */