/* ================================================
   VARIÁVEIS E RESET
   ================================================ */
:root {
  --bg-primary:   #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary:  #21262d;
  --accent:       #7c3aed;
  --accent-light: #a78bfa;
  --accent-hover: #6d28d9;
  --text-primary:   #e6edf3;
  --text-secondary: #8b949e;
  --border:  #30363d;
  --danger:  #da3633;
  --success: #238636;
  --nav-h: 65px;
  --radius: 12px;
  --transition: 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

.accent { color: var(--accent-light); }

/* ================================================
   NAVBAR
   ================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Fira Code', monospace;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--accent-light);
  letter-spacing: -0.02em;
  transition: color var(--transition);
}
.nav-logo:hover { color: #fff; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}
.nav-link.active { color: var(--accent-light); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ================================================
   BOTÕES
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124,58,237,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--accent-light);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: rgba(124,58,237,0.1);
  transform: translateY(-2px);
}
.btn-sm { padding: 0.45rem 1rem; font-size: 0.85rem; }

/* ================================================
   HERO
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

/* Grid pattern background */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(48,54,61,0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48,54,61,0.25) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

/* Purple glow at top center */
.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
}

.hero-greeting {
  font-family: 'Fira Code', monospace;
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
}

.hero-verciculo {
  font-family: 'Fira Code', monospace;
  font-size: 0.89rem;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-name {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  min-height: 2rem;
}

.cursor {
  color: var(--accent-light);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-socials {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.social-link {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition);
}
.social-link:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(124,58,237,0.1);
  transform: translateY(-3px);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
  z-index: 1;
}
@keyframes bounce {
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(-8px)}
}

/* ================================================
   SEÇÕES
   ================================================ */
.section { padding: 5rem 1.5rem; }
.section-alt { background: var(--bg-secondary); }

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
}
.section-title::after {
  content: '';
  display: block;
  width: 60px; height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 0.75rem auto 0;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 520px;
  margin: -2rem auto 2.5rem;
  font-size: 0.95rem;
}

/* ================================================
   SOBRE
   ================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* Terminal card */
.about-terminal {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.terminal-header {
  background: var(--bg-secondary);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.terminal-title {
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-left: auto;
}

.terminal-body {
  padding: 1.5rem;
}

.terminal-body pre {
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
  white-space: pre;
}

.c-bracket { color: var(--accent-light); }
.c-key     { color: #79c0ff; }
.c-str     { color: #a5d6ff; }
.c-bool    { color: #ff7b72; }

.about-text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.about-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.info-item i { color: var(--accent-light); width: 16px; }

/* ================================================
   HABILIDADES
   ================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-category:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.skill-category h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-light);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background: rgba(124,58,237,0.12);
  color: var(--accent-light);
  border: 1px solid rgba(124,58,237,0.3);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: background var(--transition);
}
.tag:hover { background: rgba(124,58,237,0.25); }
.tag-sm { padding: 0.2rem 0.6rem; font-size: 0.75rem; }

/* ================================================
   PROJETOS
   ================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(124,58,237,0.15);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-icon {
  font-size: 2rem;
  color: var(--accent-light);
}

.project-links {
  display: flex;
  gap: 0.75rem;
}
.project-links a {
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: color var(--transition), transform var(--transition);
}
.project-links a:hover {
  color: var(--accent-light);
  transform: translateY(-2px);
}

.project-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex: 1;
}

.project-card .project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.project-card-add {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
  border-style: dashed;
  color: var(--text-secondary);
  min-height: 200px;
}
.project-card-add i { font-size: 2.5rem; color: var(--border); }

/* ================================================
   MINI-JOGO
   ================================================ */
.game-wrapper {
  max-width: 680px;
  margin: 0 auto;
}

/* Seletor de modo */
.mode-selector {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.mode-btn {
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  color: var(--text-secondary);
  padding: 0.65rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.mode-btn:hover        { border-color: var(--accent); color: var(--text-primary); }
.mode-btn.active       { background: rgba(124,58,237,0.15); border-color: var(--accent); color: var(--accent-light); }

/* Dificuldade */
.difficulty-selector {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  animation: fadeIn 0.25s ease;
}
.difficulty-selector.visible { display: flex; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.diff-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.diff-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition);
}
.diff-btn:hover  { border-color: var(--accent); color: var(--text-primary); }
.diff-btn.active { background: rgba(124,58,237,0.15); border-color: var(--accent); color: var(--accent-light); }

/* Card ativo (vez do jogador) */
.player-card.active-player {
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(124,58,237,0.3);
}

/* Computador "pensando" */
.player-card.thinking {
  border-color: var(--accent-light);
  animation: thinking-pulse 0.9s ease-in-out infinite;
}
@keyframes thinking-pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(167,139,250,0.3); }
  50%       { box-shadow: 0 0 28px rgba(167,139,250,0.65); }
}

/* Placar */
.game-scoreboard {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.player-card {
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.player-card.active-player {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(124,58,237,0.25);
}

.player-symbol-wrap {
  width: 52px; height: 52px;
  background: var(--bg-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* O no card do placar */
.symbol-o {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 4px solid var(--accent-light);
  box-shadow: 0 0 12px rgba(167,139,250,0.6);
}

/* X no card do placar */
.symbol-x {
  width: 26px; height: 26px;
  position: relative;
}
.symbol-x::before,
.symbol-x::after {
  content: '';
  position: absolute;
  width: 100%; height: 4px;
  background: #f87171;
  border-radius: 2px;
  top: 50%; left: 0;
  box-shadow: 0 0 12px rgba(248,113,113,0.6);
}
.symbol-x::before { transform: translateY(-50%) rotate(45deg); }
.symbol-x::after  { transform: translateY(-50%) rotate(-45deg); }

.player-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.player-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.player-name {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-score {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-light);
  font-family: 'Fira Code', monospace;
  line-height: 1;
}

/* Controles */
.game-controls {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: stretch;
}

.game-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.game-btn:hover {
  background: var(--bg-secondary);
  transform: translateY(-2px);
}
.game-btn-accent         { border-color: var(--accent); color: var(--accent-light); }
.game-btn-accent:hover   { background: rgba(124,58,237,0.12); }
.game-btn-danger         { border-color: var(--danger); color: #f85149; }
.game-btn-danger:hover   { background: rgba(218,54,51,0.12); }

/* Tabuleiro */
.game-board {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 380px;
  margin: 0 auto;
}

.game-row {
  display: flex;
  gap: 0.5rem;
}

.quadrado {
  flex: 1;
  aspect-ratio: 1 / 1;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  position: relative;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  min-height: 90px;
}
.quadrado:hover {
  border-color: var(--accent);
  background: rgba(124,58,237,0.08);
  box-shadow: 0 0 20px rgba(124,58,237,0.18);
}
.quadrado.no-hover {
  cursor: not-allowed !important;
  pointer-events: none;
}

/* Peças no tabuleiro */
.quadrado .circle,
.quadrado .x {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: popIn 0.22s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* O — anel roxo luminoso */
.quadrado .circle {
  width: 58%; height: 58%;
  border-radius: 50%;
  border: 5px solid var(--accent-light);
  background: transparent;
  box-shadow:
    0 0 18px rgba(167,139,250,0.55),
    inset 0 0 10px rgba(167,139,250,0.18);
}

/* X — barras cruzadas vermelhas */
.quadrado .x {
  width: 58%; height: 58%;
}
.quadrado .x::before,
.quadrado .x::after {
  content: '';
  position: absolute;
  width: 100%; height: 5px;
  background: #f87171;
  border-radius: 3px;
  top: 50%; left: 0;
  box-shadow: 0 0 16px rgba(248,113,113,0.55);
}
.quadrado .x::before { transform: translateY(-50%) rotate(45deg); }
.quadrado .x::after  { transform: translateY(-50%) rotate(-45deg); }

@keyframes popIn {
  from { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
  to   { transform: translate(-50%, -50%) scale(1);   opacity: 1; }
}

.game-result {
  text-align: center;
  margin-top: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-light);
}

/* SweetAlert2 dark theme */
.swal2-popup {
  background: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
}
.swal2-title { color: var(--text-primary) !important; }
.swal2-html-container { color: var(--text-secondary) !important; }
.swal2-input {
  background: var(--bg-tertiary) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  border-radius: 8px !important;
}
.swal2-input:focus { border-color: var(--accent) !important; box-shadow: 0 0 0 3px rgba(124,58,237,0.3) !important; }
.swal2-confirm { background: var(--accent) !important; border-radius: 8px !important; }
.swal2-confirm:hover { background: var(--accent-hover) !important; }
.swal2-cancel { border-radius: 8px !important; }

/* ================================================
   CONTATO
   ================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.contact-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(124,58,237,0.15);
}
.contact-card i {
  font-size: 2rem;
  color: var(--accent-light);
}
.contact-card h3 {
  font-size: 1rem;
  font-weight: 700;
}
.contact-card span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
}
.footer p { color: var(--text-secondary); font-size: 0.9rem; }
.footer .accent { font-size: 1rem; }
.footer-sub { margin-top: 0.25rem; font-size: 0.8rem; }

/* ================================================
   ANIMAÇÕES DE SCROLL
   ================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Delay em cadeia para grids */
.skill-category:nth-child(2)  { transition-delay: 0.1s; }
.skill-category:nth-child(3)  { transition-delay: 0.2s; }
.skill-category:nth-child(4)  { transition-delay: 0.3s; }
.project-card:nth-child(2)    { transition-delay: 0.1s; }
.project-card:nth-child(3)    { transition-delay: 0.2s; }
.contact-card:nth-child(2)    { transition-delay: 0.1s; }
.contact-card:nth-child(3)    { transition-delay: 0.2s; }

/* ================================================
   RESPONSIVO
   ================================================ */
@media (max-width: 768px) {
  /* Navbar mobile */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(13,17,23,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.25rem;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 0.65rem 1rem; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }

  /* Game scoreboard */
  .game-scoreboard {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .game-controls { flex-direction: row; }
  .game-btn { flex: 1; }

  /* Hero buttons */
  .hero-buttons { gap: 0.75rem; }
  .btn { padding: 0.6rem 1.1rem; }
}

@media print {
  .reveal { opacity: 1 !important; transform: none !important; }
  .navbar { position: static; }
}

@media (max-width: 480px) {
  .section { padding: 3.5rem 1rem; }
  .hero { padding-top: calc(var(--nav-h) + 1rem); }
  .game-controls { flex-direction: column; }
  .terminal-body pre { font-size: 0.78rem; }
}