/* ========================================================
   Pitching 101 -- Premium Sports Editorial Design

   Palette:
     Navy:     #0a1628 / #0d1b30
     White:    #f5f5f5
     Red:      #c8102e
     Blue:     #002d72
     Clay:     #c4793a
     Grass:    #2d5a27
     Card:     #131d30
     Muted:    #8899b0
   ======================================================== */

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

:root {
  --navy: #0a1628;
  --navy-light: #0d1b30;
  --navy-mid: #111f3a;
  --white: #f5f5f5;
  --red: #c8102e;
  --red-glow: rgba(200, 16, 46, 0.12);
  --blue: #002d72;
  --blue-light: #1a4a8a;
  --clay: #c4793a;
  --clay-dim: rgba(196, 121, 58, 0.12);
  --grass: #2d5a27;
  --grass-dim: rgba(45, 90, 39, 0.12);
  --gray: #1e293b;
  --card-bg: #131d30;
  --card-border: #1f3050;
  --muted: #8899b0;
  --text: #c9d5e3;
  --heading: #f0f4f8;
  --fastball-color: #ef4444;
  --breaking-color: #60a5fa;
  --offspeed-color: #4ade80;
  --nav-height: 64px;
  --section-padding: 112px;
  --max-width: 1160px;
  --radius: 12px;
  --radius-lg: 18px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px);
  font-size: 16px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  padding: 8px 16px;
  background: var(--red);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0 0 8px 8px;
  z-index: 10001;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--navy);
  color: var(--text);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--red);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: #f87171; }

h1, h2, h3 {
  font-family: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  color: var(--heading);
  font-weight: 400;
  line-height: 1.18;
}

h4, h5, h6 {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--heading);
  font-weight: 700;
  line-height: 1.3;
}

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

/* Subtle selection color */
::selection {
  background: rgba(200, 16, 46, 0.3);
  color: var(--white);
}

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 3px;
}

/* ---------- Navigation ---------- */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(10, 22, 40, 0.55);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.main-nav.scrolled {
  background: rgba(10, 22, 40, 0.92);
  border-bottom-color: var(--card-border);
  box-shadow: 0 1px 24px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.nav-logo {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--white);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-logo .logo-accent {
  color: var(--red);
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--red);
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

#hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

#hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

#hamburger-btn.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
#hamburger-btn.open span:nth-child(2) { opacity: 0; }
#hamburger-btn.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 28px 80px;
  overflow: hidden;
}

/* Layered radial glow */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 30%, rgba(200, 16, 46, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 60% 70% at 50% 60%, rgba(0, 45, 114, 0.1) 0%, transparent 70%),
    var(--navy);
  pointer-events: none;
}

/* Decorative diamond infield silhouette */
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 320px;
  height: 320px;
  border: 1px solid rgba(196, 121, 58, 0.08);
  border-radius: 4px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  background: var(--red-glow);
  border: 1px solid rgba(200, 16, 46, 0.25);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6.5vw, 4.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--heading);
}

.hero p {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 36px;
  background: var(--red);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border-radius: 8px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 24px rgba(200, 16, 46, 0.25);
}

.hero-cta:hover {
  background: #a50d24;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(200, 16, 46, 0.35);
}

.hero-visual {
  margin-top: 60px;
  display: flex;
  justify-content: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 520px;
  height: auto;
}

/* ---------- Section Layout ---------- */
.section {
  position: relative;
  padding: var(--section-padding) 0;
  overflow: hidden;
}

.section--alt {
  background: var(--navy-light);
}

/* Decorative diamond on alt sections */
.section--alt::before {
  content: '';
  position: absolute;
  top: 48px;
  right: -80px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(196, 121, 58, 0.06);
  transform: rotate(45deg);
  border-radius: 3px;
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.section-header p {
  color: var(--muted);
  max-width: 580px;
  margin: 0 auto;
  font-size: 1.02rem;
  line-height: 1.8;
}

.section-label {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--clay);
  margin-bottom: 10px;
}

/* ---------- Basics / Intro ---------- */
.basics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.basics-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color var(--transition), transform var(--transition);
}

.basics-card:hover {
  border-color: rgba(196, 121, 58, 0.2);
  transform: translateY(-2px);
}

.basics-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.basics-card p { color: var(--muted); font-size: 0.93rem; line-height: 1.75; }

.basics-card .icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.icon--red   { background: var(--red-glow); color: var(--red); }
.icon--blue  { background: rgba(0, 45, 114, 0.15); color: #60a5fa; }
.icon--green { background: var(--grass-dim); color: var(--offspeed-color); }

/* ---------- Pitch Family Tabs ---------- */
.pitch-family-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.pitch-family-tab {
  padding: 10px 24px;
  border-radius: 100px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all var(--transition);
}

.pitch-family-tab:hover {
  border-color: var(--muted);
  color: var(--white);
  background: rgba(255, 255, 255, 0.03);
}

.pitch-family-tab.active[data-family="fastball"] { background: rgba(239, 68, 68, 0.1); border-color: var(--fastball-color); color: var(--fastball-color); }
.pitch-family-tab.active[data-family="breaking"] { background: rgba(96, 165, 250, 0.1); border-color: var(--breaking-color); color: var(--breaking-color); }
.pitch-family-tab.active[data-family="offspeed"] { background: rgba(74, 222, 128, 0.08); border-color: var(--offspeed-color); color: var(--offspeed-color); }
.pitch-family-tab.active[data-family="all"] { background: rgba(148, 163, 184, 0.08); border-color: var(--muted); color: var(--white); }

/* ---------- Pitch Cards ---------- */
.pitch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 22px;
}

.pitch-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.pitch-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.pitch-card[data-family="fastball"] { border-top: 3px solid var(--fastball-color); }
.pitch-card[data-family="breaking"] { border-top: 3px solid var(--breaking-color); }
.pitch-card[data-family="offspeed"] { border-top: 3px solid var(--offspeed-color); }

.card-header {
  padding: 28px 28px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.card-header h3 { font-size: 1.3rem; margin-bottom: 2px; }

.card-abbr {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px;
  border-radius: 6px;
  font-family: 'DM Mono', 'SF Mono', 'Fira Code', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.pitch-card[data-family="fastball"] .card-abbr { background: rgba(239, 68, 68, 0.12); color: var(--fastball-color); }
.pitch-card[data-family="breaking"] .card-abbr { background: rgba(96, 165, 250, 0.12); color: var(--breaking-color); }
.pitch-card[data-family="offspeed"] .card-abbr { background: rgba(74, 222, 128, 0.1); color: var(--offspeed-color); }

.card-summary { padding: 14px 28px 0; color: var(--muted); font-size: 0.9rem; line-height: 1.7; }

/* Scoreboard-style stat display */
.card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 22px 28px 0;
  background: var(--card-border);
  border-radius: 10px;
  overflow: hidden;
}

.card-stat {
  background: rgba(10, 22, 40, 0.7);
  padding: 14px 8px;
  text-align: center;
}

.card-stat .label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.card-stat .value {
  font-family: 'DM Mono', 'SF Mono', monospace;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--heading);
  letter-spacing: 0.02em;
}

.card-diagram { padding: 20px 28px 8px; display: flex; justify-content: center; }
.card-diagram svg { width: 100%; max-width: 280px; height: auto; }

.card-toggle {
  width: 100%;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: transparent;
  border: none;
  border-top: 1px solid var(--card-border);
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.card-toggle:hover { color: var(--white); background: rgba(255, 255, 255, 0.025); }
.card-toggle .arrow { transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); font-size: 0.7em; }
.pitch-card.expanded .card-toggle .arrow { transform: rotate(180deg); }

.card-details { max-height: 0; overflow: hidden; transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1); }
.pitch-card.expanded .card-details { max-height: 1200px; }

.card-details-inner { padding: 0 28px 28px; }

.card-details-inner h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clay);
  margin: 22px 0 8px;
  font-weight: 700;
}

.card-details-inner h4:first-child { margin-top: 0; }
.card-details-inner p { font-size: 0.9rem; color: var(--text); line-height: 1.72; }

.card-details-inner .famous-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.card-details-inner .famous-list li {
  display: inline-block;
  padding: 5px 14px;
  background: var(--red-glow);
  border: 1px solid rgba(200, 16, 46, 0.15);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--text);
  font-weight: 500;
}

/* ---------- Pitcher Types ---------- */
.pitcher-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.pitcher-type-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

/* Baseball-stitch-inspired left accent on hover */
.pitcher-type-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  background: linear-gradient(to bottom, transparent 0%, var(--clay) 15%, var(--clay) 35%, transparent 40%, transparent 60%, var(--clay) 65%, var(--clay) 85%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: 2px;
}

.pitcher-type-card:hover::before { opacity: 0.5; }
.pitcher-type-card:hover { border-color: rgba(196, 121, 58, 0.18); transform: translateY(-2px); }

.pitcher-type-card h3 { font-size: 1.2rem; margin-bottom: 10px; }

.pitcher-type-card .role-meta { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }

.role-meta .tag {
  font-size: 0.72rem;
  font-family: 'DM Mono', 'SF Mono', monospace;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(0, 45, 114, 0.15);
  color: #60a5fa;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.pitcher-type-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.72; }

/* ---------- Strategy ---------- */
.strategy-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 22px;
}

.strategy-block {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color var(--transition), transform var(--transition);
}

.strategy-block:hover { border-color: rgba(96, 165, 250, 0.15); transform: translateY(-2px); }
.strategy-block h3 { font-size: 1.2rem; margin-bottom: 12px; }
.strategy-block p { color: var(--muted); font-size: 0.9rem; margin-bottom: 8px; line-height: 1.72; }

.strategy-example {
  margin-top: 18px;
  padding: 18px 20px;
  background: rgba(10, 22, 40, 0.6);
  border-radius: 10px;
  border-left: 3px solid var(--clay);
}

.strategy-example .example-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clay);
  font-weight: 700;
  margin-bottom: 6px;
}

.strategy-example p { font-size: 0.88rem; color: var(--text); line-height: 1.72; margin-bottom: 0; }
.strategy-example--callout { max-width: 720px; margin: 32px auto 0; }

/* ---------- Count Grid ---------- */
.count-grid-title { text-align: center; margin-bottom: 8px; font-size: 1.1rem; }
.count-grid-subtitle { text-align: center; color: var(--muted); font-size: 0.88rem; margin-bottom: 24px; }

.count-grid {
  display: grid;
  grid-template-columns: auto repeat(3, 1fr);
  gap: 6px;
  max-width: 480px;
  margin: 0 auto 20px;
}

.count-axis-label {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.count-axis-corner { visibility: hidden; }
.count-axis-col { padding-bottom: 2px; }
.count-axis-row { padding-right: 6px; justify-content: flex-end; }

.count-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-family: 'DM Mono', 'SF Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--white);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.count-cell:hover { transform: scale(1.06); }

/* Colored left-edge indicator bar */
.count-cell::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  bottom: 15%;
  width: 3px;
  border-radius: 0 2px 2px 0;
}

.count-cell .count-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- Pitcher advantage: strong green --- */
.count-cell.pitcher-advantage {
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.35);
  box-shadow: inset 0 0 12px rgba(52, 211, 153, 0.08);
}
.count-cell.pitcher-advantage::before { background: #34d399; }
.count-cell.pitcher-advantage .count-label { color: #6ee7b7; }

/* --- Neutral: subtle slate --- */
.count-cell.neutral {
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.2);
}
.count-cell.neutral::before { background: rgba(148, 163, 184, 0.35); }
.count-cell.neutral .count-label { color: rgba(148, 163, 184, 0.7); }

/* --- Hitter advantage: strong red --- */
.count-cell.hitter-advantage {
  background: rgba(248, 113, 113, 0.16);
  border: 1px solid rgba(248, 113, 113, 0.35);
  box-shadow: inset 0 0 12px rgba(248, 113, 113, 0.07);
}
.count-cell.hitter-advantage::before { background: #f87171; }
.count-cell.hitter-advantage .count-label { color: #fca5a5; }

/* --- Count Legend --- */
.count-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  max-width: 480px;
  margin: 0 auto 48px;
  padding: 12px 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
}

.count-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.count-legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  flex-shrink: 0;
  border: 1px solid;
}

.count-legend-swatch--pitcher {
  background: rgba(52, 211, 153, 0.2);
  border-color: rgba(52, 211, 153, 0.5);
  box-shadow: inset 0 0 4px rgba(52, 211, 153, 0.15);
}

.count-legend-swatch--neutral {
  background: rgba(148, 163, 184, 0.12);
  border-color: rgba(148, 163, 184, 0.3);
}

.count-legend-swatch--hitter {
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.5);
  box-shadow: inset 0 0 4px rgba(248, 113, 113, 0.15);
}

/* ---------- Pitch Comparison ---------- */
.compare-tool {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

/* Decorative diamond corner */
.compare-tool::after {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 100px;
  height: 100px;
  border: 1px solid rgba(196, 121, 58, 0.08);
  transform: rotate(45deg);
  border-radius: 3px;
  pointer-events: none;
}

.compare-selectors {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.compare-select-wrapper { position: relative; }

.compare-select-wrapper select {
  appearance: none;
  padding: 13px 44px 13px 18px;
  background: rgba(10, 22, 40, 0.7);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  min-width: 210px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.compare-select-wrapper select:hover,
.compare-select-wrapper select:focus-visible {
  border-color: var(--clay);
  box-shadow: 0 0 0 3px rgba(196, 121, 58, 0.1);
  outline: none;
}

.compare-select-wrapper::after {
  content: '';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--muted);
  pointer-events: none;
}

.compare-vs {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.3rem;
  color: var(--muted);
}

.compare-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.compare-panel {
  background: rgba(10, 22, 40, 0.5);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition);
}

.compare-panel .panel-placeholder { color: var(--muted); font-size: 0.9rem; opacity: 0.6; }
.compare-panel h4 { font-size: 1.15rem; margin-bottom: 16px; }

.compare-stats-row { display: flex; justify-content: center; gap: 20px; margin-top: 16px; flex-wrap: wrap; }
.compare-stat-item { text-align: center; }
.compare-stat-item .label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 600; }
.compare-stat-item .value { font-family: 'DM Mono', monospace; font-size: 1.1rem; font-weight: 500; color: var(--heading); }

/* ---------- Legends -- Baseball Card Style ---------- */
.legends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.legend-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
}

.legend-card:hover {
  border-color: rgba(196, 121, 58, 0.25);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
  transform: translateY(-4px);
}

/* Stitching-inspired accent bar */
.legend-card::before {
  content: '';
  display: block;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--red) 0px, var(--red) 12px, transparent 12px, transparent 18px);
  opacity: 0.4;
}

.legend-card-inner { padding: 28px 32px 32px; }

.legend-card h3 { font-size: 1.35rem; margin-bottom: 2px; }

.legend-card .legend-pitch {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--clay);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.legend-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 14px; line-height: 1.72; }

.legend-card .legend-stat {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  background: var(--red-glow);
  border: 1px solid rgba(200, 16, 46, 0.15);
  border-radius: 8px;
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  color: var(--heading);
  font-weight: 500;
}

.legend-card .legend-story {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(10, 22, 40, 0.5);
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
  border-left: 3px solid var(--clay);
  line-height: 1.7;
}

/* ---------- Glossary ---------- */
.glossary-search-wrapper {
  max-width: 420px;
  margin: 0 auto 36px;
  position: relative;
}

.glossary-search-wrapper input {
  width: 100%;
  padding: 15px 20px 15px 48px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.glossary-search-wrapper input:focus {
  outline: none;
  border-color: var(--clay);
  box-shadow: 0 0 0 3px rgba(196, 121, 58, 0.1);
}

.glossary-search-wrapper input::placeholder { color: var(--muted); opacity: 0.6; }

.glossary-search-wrapper .search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
  opacity: 0.6;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}

.glossary-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color var(--transition);
}

.glossary-item:hover { border-color: rgba(196, 121, 58, 0.15); }

.glossary-item dt {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  color: var(--heading);
  font-size: 1.02rem;
  margin-bottom: 6px;
}

.glossary-item dd { color: var(--muted); font-size: 0.88rem; line-height: 1.7; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 56px 0;
  border-top: 1px solid var(--card-border);
  text-align: center;
  position: relative;
}

/* Red stitch accent centered on border */
.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--red) 0px, var(--red) 8px, transparent 8px, transparent 14px);
  opacity: 0.3;
}

.site-footer p { color: var(--muted); font-size: 0.82rem; opacity: 0.7; }

/* ---------- Strike Zone Diagram ---------- */
.strike-zone-container {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  align-items: flex-start;
  margin-top: 48px;
}

.strike-zone-panel { text-align: center; flex: 0 1 200px; }

.strike-zone-panel h4 {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 14px;
  font-weight: 600;
}

/* ---------- Pitch Cheat Sheet ---------- */
.cheat-sheet {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px 32px;
  margin-bottom: 48px;
  padding: 28px 32px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

/* Stitch accent on cheat sheet top */
.cheat-sheet::before {
  content: '';
  position: absolute;
  top: 0;
  left: 32px;
  right: 32px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--red) 0px, var(--red) 8px, transparent 8px, transparent 16px);
  opacity: 0.15;
}

.cheat-item { display: flex; align-items: baseline; gap: 8px; font-size: 0.88rem; padding: 8px 0; border-bottom: 1px solid rgba(31,48,80,0.4); }
.cheat-item:last-child { border-bottom: none; }

.cheat-item .cheat-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; margin-top: 2px; }
.cheat-dot.fastball { background: var(--fastball-color); }
.cheat-dot.breaking { background: var(--breaking-color); }
.cheat-dot.offspeed { background: var(--offspeed-color); }

.cheat-item strong { color: var(--heading); font-weight: 600; white-space: nowrap; margin-right: 2px; }
.cheat-item span { color: var(--muted); }

/* ---------- Diagram labels ---------- */
.diagram-label { font-family: 'Inter', sans-serif; font-size: 10px; font-weight: 600; }
.diagram-sublabel { font-family: 'Inter', sans-serif; font-size: 8px; font-weight: 400; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  :root { --section-padding: 72px; }
  .cheat-sheet { grid-template-columns: 1fr; }
  .cheat-item:last-child { border-bottom: none; }
  .cheat-item:nth-last-child(-n+3) { border-bottom: 1px solid rgba(31,48,80,0.4); }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--card-border);
    flex-direction: column;
    align-items: center;
    padding: 28px 0;
    gap: 16px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
  }

  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  #hamburger-btn { display: block; }
  .hero { min-height: auto; padding: 110px 20px 64px; }
  .basics-grid { grid-template-columns: 1fr; }
  .pitch-grid { grid-template-columns: 1fr; }
  .compare-panels { grid-template-columns: 1fr; }
  .compare-tool { padding: 28px; }
  .count-grid { max-width: 340px; }
  .count-axis-label { font-size: 0.58rem; }
  .count-axis-row { padding-right: 4px; }
  .count-legend { gap: 12px; padding: 10px 14px; flex-wrap: wrap; justify-content: center; max-width: 340px; }
  .count-legend-item { font-size: 0.68rem; gap: 5px; }
  .legends-grid { grid-template-columns: 1fr; }
  .pitcher-types-grid { grid-template-columns: 1fr; }
  .strategy-blocks { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .compare-selectors { flex-direction: column; gap: 12px; }
  .compare-select-wrapper select { min-width: 100%; }
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Scroll-reveal animations handled by JS IntersectionObserver (scripts.js) */

/* ============================================================
   INTERACTIVE JS STYLES (scripts.js dependencies)
   ============================================================ */

/* ---------- Scroll-driven reveal (IntersectionObserver) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  /* Override the CSS animation approach when JS is active */
  animation: none;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Pitch card filter transitions ---------- */
.pitch-card {
  transition: opacity 0.35s ease, transform 0.35s ease, border-color 0.25s, box-shadow 0.25s;
}

.pitch-card.filter-hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  padding: 0;
  margin: 0;
  border: 0;
}

/* ---------- Active nav link ---------- */
.nav-links a {
  position: relative;
}

.nav-links a.active {
  color: var(--white);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
  border-radius: 1px;
}

/* ---------- Compare panel populated ---------- */
.compare-panel.populated {
  justify-content: flex-start;
  text-align: center;
}

.compare-panel .pitch-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 4px;
}

.compare-panel .pitch-abbr {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.compare-panel .pitch-abbr.fastball {
  background: rgba(239, 68, 68, 0.15);
  color: var(--fastball-color);
}

.compare-panel .pitch-abbr.breaking {
  background: rgba(96, 165, 250, 0.15);
  color: var(--breaking-color);
}

.compare-panel .pitch-abbr.offspeed {
  background: rgba(74, 222, 128, 0.15);
  color: var(--offspeed-color);
}

.compare-panel .pitch-desc {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 16px;
  line-height: 1.5;
}

.compare-panel .panel-trajectory {
  margin: 12px auto;
  width: 100%;
  max-width: 220px;
}

.compare-panel .panel-trajectory svg {
  width: 100%;
  height: auto;
}

.compare-panel .when-used {
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--card-bg);
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--muted);
  text-align: left;
  border-left: 2px solid var(--red);
}

.compare-panel .when-used strong {
  color: var(--heading);
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

/* ---------- Interactive Strike Zone ---------- */

.sz-section-intro {
  text-align: center;
  margin-top: 64px;
  margin-bottom: 36px;
}

.sz-section-intro h3 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--heading);
  margin-bottom: 10px;
  font-weight: 400;
}

.sz-section-intro p {
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.72;
}

.sz-handedness-note {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 8px;
}

.sz-interactive-wrapper {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* -- Strike Zone Grid Container with labels -- */
.sz-grid-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: fit-content;
}

.sz-grid-area {
  position: relative;
  /* Space for edge labels */
  padding: 24px 36px 28px 36px;
}

/* Edge labels around the zone */
.sz-edge-label {
  position: absolute;
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  opacity: 0.7;
  white-space: nowrap;
}

.sz-edge-label--top {
  top: 2px;
  left: 50%;
  transform: translateX(-50%);
}

.sz-edge-label--bottom {
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
}

.sz-edge-label--left {
  left: 0;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
}

.sz-edge-label--right {
  right: 0;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
}

/* Batter silhouette container */
.sz-batter-silhouette {
  position: absolute;
  right: -54px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.18;
  pointer-events: none;
}

.sz-grid {
  display: grid;
  grid-template-columns: repeat(3, 84px);
  grid-template-rows: repeat(3, 84px);
  gap: 2px;
  border: 2px solid rgba(136, 153, 176, 0.5);
  border-radius: 6px;
  overflow: hidden;
  background: rgba(136, 153, 176, 0.08);
}

.sz-cell {
  background: rgba(148, 163, 184, 0.04);
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sz-cell:hover {
  background: rgba(255, 255, 255, 0.06);
}

.sz-cell .zone-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(136, 153, 176, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  pointer-events: none;
  position: relative;
  z-index: 1;
  transition: opacity 0.3s;
}

.sz-cell .heat-overlay {
  position: absolute;
  inset: 0;
  border-radius: 2px;
  transition: opacity 0.3s, background 0.3s;
  opacity: 0;
}

.sz-cell .heat-overlay.active {
  opacity: 1;
}

/* Intensity percentage labels inside cells */
.sz-cell .heat-pct {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Mono', 'SF Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--white);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  transition: opacity 0.3s;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

.sz-cell .heat-pct.visible {
  opacity: 1;
}

.sz-cell .heat-pct.visible ~ .zone-name {
  opacity: 0;
}

.sz-zone-label {
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
  margin-top: 14px;
  font-weight: 500;
  min-height: 1.4em;
}

/* Home plate shape below the grid */
.sz-home-plate {
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 12px solid rgba(136, 153, 176, 0.25);
  margin: 0 auto;
  position: relative;
  top: -1px;
}

/* -- Pitch Selector (chip-style grouped buttons) -- */
.sz-pitch-selector {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 200px;
}

.sz-pitch-group-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 2px;
  padding-left: 2px;
}

.sz-pitch-group-label--fastball { color: var(--fastball-color); }
.sz-pitch-group-label--breaking { color: var(--breaking-color); }
.sz-pitch-group-label--offspeed { color: var(--offspeed-color); }

.sz-pitch-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sz-pitch-btn {
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  white-space: nowrap;
  line-height: 1.4;
}

.sz-pitch-btn:hover {
  border-color: var(--muted);
  color: var(--white);
  background: rgba(255, 255, 255, 0.03);
}

.sz-pitch-btn.active[data-family="fastball"] {
  border-color: var(--fastball-color);
  color: var(--white);
  background: rgba(239, 68, 68, 0.12);
}

.sz-pitch-btn.active[data-family="breaking"] {
  border-color: var(--breaking-color);
  color: var(--white);
  background: rgba(96, 165, 250, 0.12);
}

.sz-pitch-btn.active[data-family="offspeed"] {
  border-color: var(--offspeed-color);
  color: var(--white);
  background: rgba(74, 222, 128, 0.1);
}

/* Legend bar below pitch selector */
/* -- Usage display (pitch frequency indicator) -- */
.sz-usage-display {
  margin-top: 4px;
  padding: 14px 18px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid transparent;
  border-radius: 8px;
  transition: border-left-color 0.3s ease;
}

.sz-usage-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.sz-usage-rank {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sz-usage-in-mlb {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.sz-usage-number {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.sz-usage-value {
  font-family: 'DM Mono', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.1;
}

.sz-usage-suffix {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--muted);
}

.sz-usage-context {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--muted);
  opacity: 0.8;
}

/* ---------- Glossary tooltip ---------- */
.glossary-tooltip-trigger {
  border-bottom: 1px dashed var(--muted);
  cursor: help;
  position: relative;
}

.glossary-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--gray);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text);
  max-width: 260px;
  white-space: normal;
  z-index: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  line-height: 1.4;
  font-style: normal;
  font-weight: 400;
}

.glossary-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--gray);
}

.glossary-tooltip-trigger:hover .glossary-tooltip,
.glossary-tooltip-trigger:focus .glossary-tooltip {
  opacity: 1;
}

/* ---------- Sort controls ---------- */
.sort-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.sort-btn {
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.sort-btn:hover {
  border-color: var(--muted);
  color: var(--white);
}

.sort-btn.active {
  background: rgba(148, 163, 184, 0.1);
  border-color: var(--muted);
  color: var(--white);
}

/* ---------- Responsive overrides for interactive elements ---------- */
@media (max-width: 768px) {
  .sz-grid {
    grid-template-columns: repeat(3, 64px);
    grid-template-rows: repeat(3, 64px);
  }

  .sz-grid-area {
    padding: 22px 28px 24px 28px;
  }

  .sz-batter-silhouette {
    display: none;
  }

  .sz-interactive-wrapper {
    gap: 24px;
    flex-direction: column;
    align-items: center;
  }

  .sz-pitch-selector {
    min-width: unset;
    width: 100%;
    max-width: 340px;
  }

  .sz-cell .zone-name {
    font-size: 0.52rem;
  }

  .sz-cell .heat-pct {
    font-size: 0.62rem;
  }

  .compare-panel .panel-trajectory {
    max-width: 180px;
  }

  .sort-controls {
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .sz-grid {
    grid-template-columns: repeat(3, 56px);
    grid-template-rows: repeat(3, 56px);
  }

  .sz-edge-label {
    font-size: 0.58rem;
  }
}