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

:root {
  --turquoise: #2BB8AA;
  --turquoise-dark: #239E92;
  --turquoise-light: #3DD4C5;
  --navy: #1A2332;
  --navy-deep: #0F161F;
  --cream: #F4F0E8;
  --sand: #EBE6DB;
  --clay: #C7593A;
  --clay-dark: #A94828;
  --clay-light: #D4734E;
  --white: #FFFFFF;
  --gray-50: #FAFAF9;
  --gray-100: #F5F5F4;
  --gray-200: #E5E5E3;
  --gray-300: #D4D4D2;
  --gray-400: #A3A3A0;
  --gray-500: #78786F;
  --gray-600: #57574F;
  --gray-800: #2C2C28;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.12);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition: .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--cream);
  background-image:
    radial-gradient(circle at 20% 50%, rgba(43,184,170,.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(199,89,58,.03) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(43,184,170,.02) 0%, transparent 50%);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--turquoise-dark); text-decoration: none; }

/* ===== TOP NAV ===== */
.top-nav {
  background: var(--navy);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: 48px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
}

.nav-logo-img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.nav-logo-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .2px;
}

.nav-logo-sub {
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--turquoise);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2px;
}

.nav-links a {
  color: rgba(255,255,255,.6);
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  letter-spacing: .2px;
}

.nav-links a:hover { color: var(--white); background: rgba(255,255,255,.07); }
.nav-links a.active { color: var(--white); background: rgba(255,255,255,.12); }

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 16px;
  background: var(--navy);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: 101;
  border: 1px solid rgba(255,255,255,.1);
}

.nav-mobile-menu.open {
  display: flex;
  flex-direction: column;
}

.nav-mobile-menu a {
  color: rgba(255,255,255,.6);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-mobile-menu a:hover,
.nav-mobile-menu a.active {
  color: var(--white);
  background: rgba(255,255,255,.08);
}

/* ===== PATTERN STRIP (pure CSS Southwest geometric) ===== */
.pattern-strip {
  --ps-h: 40px;
  --ps-unit: var(--ps-h);
  --ps-orange: #C0501A;
  --ps-rust: #9B3B10;
  --ps-teal: #1A7A73;
  --ps-turq: #2BB8AA;
  --ps-dark: #0E1820;
  --ps-cream: #F0E4C8;
  --ps-black: #0A0A0A;
  height: var(--ps-h);
  position: relative;
  background: var(--ps-orange);
  z-index: 1;
  overflow: hidden;
  border-top: 2px solid var(--ps-black);
  border-bottom: 2px solid var(--ps-black);
}

/* Main element: large diamonds repeating every 80px (2 × height) */
.pattern-strip {
  background:
    /* ---- Large cream + cross center ---- */
    linear-gradient(0deg,   transparent 42%, var(--ps-cream) 42%, var(--ps-cream) 58%, transparent 58%),
    linear-gradient(90deg,  transparent 46%, var(--ps-cream) 46%, var(--ps-cream) 54%, transparent 54%),

    /* ---- Turquoise mid diamond ---- */
    linear-gradient(45deg,  transparent 38%, var(--ps-turq) 38%, var(--ps-turq) 62%, transparent 62%),
    linear-gradient(-45deg, transparent 38%, var(--ps-turq) 38%, var(--ps-turq) 62%, transparent 62%),

    /* ---- Dark teal diamond ring ---- */
    linear-gradient(45deg,  transparent 34%, var(--ps-teal) 34%, var(--ps-teal) 66%, transparent 66%),
    linear-gradient(-45deg, transparent 34%, var(--ps-teal) 34%, var(--ps-teal) 66%, transparent 66%),

    /* ---- Rust outline diamond ---- */
    linear-gradient(45deg,  transparent 26%, var(--ps-rust) 26%, var(--ps-rust) 74%, transparent 74%),
    linear-gradient(-45deg, transparent 26%, var(--ps-rust) 26%, var(--ps-rust) 74%, transparent 74%),

    /* ---- Base orange fill ---- */
    linear-gradient(var(--ps-orange), var(--ps-orange));

  background-size: 80px var(--ps-h);
  background-position: 0 0;
}

/* ::before — small accent diamonds offset between the large ones */
.pattern-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    /* Small red/cream diamond center */
    linear-gradient(45deg,  transparent 47%, var(--ps-rust) 47%, var(--ps-rust) 53%, transparent 53%),
    linear-gradient(-45deg, transparent 47%, var(--ps-rust) 47%, var(--ps-rust) 53%, transparent 53%),

    /* Small dark diamond */
    linear-gradient(45deg,  transparent 42%, var(--ps-dark) 42%, var(--ps-dark) 58%, transparent 58%),
    linear-gradient(-45deg, transparent 42%, var(--ps-dark) 42%, var(--ps-dark) 58%, transparent 58%),

    /* Small teal diamond */
    linear-gradient(45deg,  transparent 37%, var(--ps-teal) 37%, var(--ps-teal) 63%, transparent 63%),
    linear-gradient(-45deg, transparent 37%, var(--ps-teal) 37%, var(--ps-teal) 63%, transparent 63%);

  background-size: 80px var(--ps-h);
  background-position: 40px 0;
}


/* ===== SECTIONS ===== */
.section { display: none; background: var(--cream); flex-shrink: 0; }
.section.active { display: block; }

.content-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-heading {
  font-size: 22px;
  font-weight: 700;
  margin: 24px 0 16px;
  color: var(--navy);
}


/* ===== SEARCH PANEL ===== */
.search-panel {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px 28px 20px;
  max-width: 580px;
  margin: 40px auto 0;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--gray-200);
}

.search-heading {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 2px;
}

.search-sub {
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 14px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 14px;
  color: var(--gray-400);
  pointer-events: none;
}

#search-input {
  width: 100%;
  padding: 11px 48px 11px 42px;
  font-size: 14px;
  font-family: var(--font);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  outline: none;
  background: var(--gray-50);
  color: var(--gray-800);
  transition: var(--transition);
}

#search-input::placeholder { color: var(--gray-400); }
#search-input:focus { border-color: var(--turquoise); background: var(--white); box-shadow: 0 0 0 3px rgba(43,184,170,.1); }

.clear-btn {
  position: absolute;
  right: 42px;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--gray-400);
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

.clear-btn:hover { color: var(--gray-800); }

.search-filter-btn {
  position: absolute;
  right: 5px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  color: var(--gray-400);
  cursor: pointer;
  transition: var(--transition);
}

.search-filter-btn:hover { color: var(--turquoise); border-color: var(--turquoise); }

/* Toggle buttons */
.toggle-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.toggle-btn {
  padding: 7px 20px;
  font-size: 12px;
  font-family: var(--font);
  font-weight: 600;
  border: 2px solid var(--gray-200);
  border-radius: 999px;
  background: var(--white);
  color: var(--gray-500);
  cursor: pointer;
  transition: var(--transition);
}

.toggle-btn:hover { border-color: var(--turquoise); color: var(--turquoise-dark); }

.toggle-btn:active { transform: scale(.96); }

.toggle-btn.active {
  background: var(--turquoise);
  color: var(--white);
  border-color: var(--turquoise);
  box-shadow: 0 2px 8px rgba(43,184,170,.25);
}

/* ===== BROWSE INLINE (compact) ===== */
.browse-section-inline {
  text-align: center;
  margin: 32px 0 28px;
}

.browse-inline-heading {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--turquoise-dark);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.alpha-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  max-width: 580px;
  margin: 0 auto;
}

.alpha-btn {
  width: 34px;
  height: 32px;
  border: 1.5px solid var(--gray-200);
  border-radius: 6px;
  background: var(--white);
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease, box-shadow .2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alpha-btn:hover {
  border-color: var(--turquoise);
  color: var(--turquoise-dark);
  background: rgba(43,184,170,.04);
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(43,184,170,.15);
}

.alpha-btn.active {
  background: var(--turquoise);
  color: var(--white);
  border-color: var(--turquoise);
}

/* ===== FEATURED CARD ===== */
.featured-card {
  display: block;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--white);
  border-radius: var(--radius);
  padding: 20px 24px;
  position: relative;
  max-width: 580px;
  margin: 0 auto 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(43,184,170,.15);
}

.featured-label {
  display: inline-block;
  background: var(--clay);
  color: var(--white);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.featured-word {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 3px;
  color: var(--turquoise-light);
}

.featured-def {
  font-size: 13px;
  opacity: .8;
  line-height: 1.5;
}

.fav-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 20px;
  color: rgba(255,255,255,.3);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

.fav-btn:hover { color: var(--clay); }
.fav-btn.saved { color: var(--clay); }

/* ===== RECENT SEARCHES (mobile only) ===== */
.recent-searches {
  display: none;
  max-width: 580px;
  margin: 0 auto 20px;
}

.recent-heading {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.recent-list { list-style: none; }

.recent-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 5px;
  box-shadow: var(--shadow-sm);
  border-left: 3px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}

.recent-item:hover { border-left-color: var(--turquoise); }

.recent-item-word {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1px;
}

.recent-item-def {
  font-size: 11px;
  color: var(--gray-500);
}

/* ===== INFO CARDS (compact) ===== */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
  margin-bottom: 48px;
}

.info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 16px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
  border-top: 3px solid var(--turquoise);
}

.info-card:nth-child(2) { border-top-color: var(--clay); }
.info-card:nth-child(3) { border-top-color: var(--turquoise-dark); }

.info-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.info-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  background: rgba(43,184,170,.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--turquoise);
}

.info-card h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.info-card p {
  font-size: 11px;
  color: var(--gray-500);
  line-height: 1.5;
}

/* ===== RESULTS ===== */
.results-area { margin-top: 8px; }

.results-header {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
  font-weight: 600;
}

.results-list { list-style: none; }

.result-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 5px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.result-item:hover { border-left-color: var(--turquoise); box-shadow: var(--shadow); }

.result-text { cursor: pointer; }

.result-navajo {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 2px;
}

.result-english {
  font-size: 12px;
  color: var(--gray-500);
  line-height: 1.5;
}

.result-fav {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--gray-300);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  padding: 2px;
  line-height: 1;
}

.result-fav:hover { color: var(--clay); }
.result-fav.saved { color: var(--clay); }

.load-more {
  display: block;
  margin: 14px auto 0;
  padding: 8px 24px;
  font-size: 12px;
  font-family: var(--font);
  font-weight: 600;
  border: 2px solid var(--turquoise);
  border-radius: 999px;
  background: transparent;
  color: var(--turquoise-dark);
  cursor: pointer;
  transition: var(--transition);
}

.load-more:hover { background: var(--turquoise); color: var(--white); }

/* ===== BROWSE GRID ===== */
.browse-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  gap: 8px;
  margin-bottom: 20px;
}

.browse-tile {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  transition: var(--transition);
}

.browse-tile:hover { border-color: var(--turquoise); color: var(--turquoise-dark); }
.browse-tile.active { background: var(--turquoise); color: var(--white); border-color: var(--turquoise); }

.browse-tile .tile-count {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--gray-400);
  margin-top: 2px;
}

.browse-tile.active .tile-count { color: rgba(255,255,255,.7); }

.browse-letter-heading {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 10px;
}

/* ===== FAVORITES ===== */
.empty-msg {
  text-align: center;
  color: var(--gray-400);
  padding: 48px 20px;
  font-size: 14px;
}

/* ===== ABOUT ===== */
.about-content {
  max-width: 640px;
  padding-top: 24px;
  padding-bottom: 16px;
}

.about-content h2 {
  font-size: 24px;
  color: var(--navy);
  margin-bottom: 14px;
}

.about-content h3 {
  font-size: 16px;
  color: var(--navy);
  margin: 20px 0 6px;
}

.about-content p {
  margin-bottom: 10px;
  color: var(--gray-600);
  font-size: 13px;
}

.about-content ul {
  padding-left: 22px;
  margin-bottom: 10px;
}

.about-content li {
  margin-bottom: 6px;
  color: var(--gray-600);
  font-size: 13px;
}

.about-note {
  margin-top: 24px;
  font-size: 11px;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-200);
  padding-top: 12px;
}


/* ===== FOOTER ===== */
.site-footer {
  margin-top: auto;
  background: var(--navy);
  color: rgba(255,255,255,.5);
  text-align: center;
  padding: 28px 24px 24px;
  font-size: 12px;
  line-height: 1.8;
}

.footer-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .3px;
}

.footer-logo span {
  color: var(--turquoise);
}

.footer-tagline {
  font-size: 11px;
  color: rgba(255,255,255,.35);
  margin-top: 2px;
  letter-spacing: .5px;
}

.footer-divider {
  width: 60px;
  height: 2px;
  background: var(--turquoise);
  margin: 12px auto;
  border-radius: 1px;
  opacity: .4;
}

.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,.3);
}

/* ===== BOTTOM NAV (mobile) ===== */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  z-index: 100;
  padding: 4px 0 env(safe-area-inset-bottom, 6px);
}

.bottom-nav button {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: none;
  border: none;
  color: var(--gray-400);
  font-size: 10px;
  font-family: var(--font);
  padding: 5px 0;
  cursor: pointer;
  transition: var(--transition);
}

.bottom-nav button.active { color: var(--turquoise); }
.bottom-nav button:hover { color: var(--turquoise-dark); }

/* highlight match */
mark {
  background: rgba(43,184,170,.18);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .bottom-nav { display: flex; }
  body { padding-bottom: 0; }

  .nav-logo-title { font-size: 14px; }
  .nav-logo-sub { font-size: 7px; }

  .search-panel { padding: 18px 16px 16px; margin-top: 16px; }
  .search-heading { font-size: 16px; }
  #search-input { font-size: 15px; padding: 10px 44px 10px 40px; }

  .alpha-btn { width: 32px; height: 30px; font-size: 12px; }

  .featured-card { padding: 16px 18px; }
  .site-footer { margin-bottom: 0; padding-bottom: 80px; }
  .featured-word { font-size: 18px; }
  .recent-searches { display: block; }

  .info-cards { grid-template-columns: 1fr; gap: 8px; }

  .browse-grid { grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 6px; }
  .result-item { padding: 10px 12px; }

  .content-wrap { padding: 0 16px; }
  .pattern-strip { --ps-h: 28px; }
}

@media (max-width: 400px) {
  .nav-logo-img { width: 30px; height: 30px; }
  .toggle-btn { padding: 6px 14px; font-size: 11px; }
  .search-panel { padding: 16px 14px 14px; }
}