/* --------------------------------------------------
   Speed Drawing Trainer – Boom Tomato Games
-------------------------------------------------- */

:root {
  --bt-teal: #03504e;
  --bt-teal-soft: #07746f;
  --bt-accent: #ff5b3a;
  --bt-bg-light: #f4f4f4;
  --bt-bg-dark: #111111;
  --bt-bg-warm: #f8f1e6;
  --bt-bg-cool: #0b1e30;
  --bt-text-main: #111111;
  --bt-radius: 12px;
  --bt-shadow-soft: 0 8px 18px rgba(0, 0, 0, 0.18);
  --bt-transition-fast: 0.18s ease-out;
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Themes */

body.theme-0 {
  background: var(--bt-bg-light);
  color: var(--bt-text-main);
}

body.theme-1 {
  background: #ffffff;
  color: var(--bt-text-main);
}

body.theme-2 {
  background: var(--bt-bg-dark);
  color: #f4f4f4;
}

body.theme-3 {
  background: var(--bt-bg-warm);
  color: #53381e;
}

/* Header */

.bt-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.bt-header-inner {
  max-width: 960px;
  margin: 0 auto;
}

.bt-logo {
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bt-teal-soft);
  margin-bottom: 0.25rem;
}

.bt-header h1 {
  font-size: 1.3rem;
  margin: 0;
}

.bt-tagline {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  opacity: 0.8;
}

.bt-home-link {
  margin: 0.4rem 0 0;
  font-size: 0.85rem;
}

.home-link {
  color: var(--bt-teal-soft);
  text-decoration: none;
}

.home-link:hover {
  text-decoration: underline;
}

.app-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Main silhouette area */

.silhouette-area {
  flex: 1;
  min-height: 50vh;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--bt-shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

body.theme-2 .silhouette-area,
body.theme-3 .silhouette-area {
  background: rgba(0, 0, 0, 0.12);
}

#silhouette-img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 12px rgba(0, 0, 0, 0.45));
  transition: opacity 0.25s ease-out;
}

.warning {
  position: absolute;
  inset: 1rem;
  border-radius: var(--bt-radius);
  border: 1px dashed rgba(0, 0, 0, 0.3);
  padding: 1rem;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: flex-start;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
}

body.theme-2 .warning {
  background: rgba(20, 20, 20, 0.9);
  border-color: rgba(255, 255, 255, 0.4);
}

.warning.hidden {
  display: none;
}

/* Controls */

.controls {
  border-radius: 18px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--bt-shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

body.theme-2 .controls,
body.theme-3 .controls {
  background: rgba(0, 0, 0, 0.18);
}

.timer-row {
  display: flex;
  justify-content: center;
}

.timer-display {
  font-variant-numeric: tabular-nums;
  font-size: 1.6rem;
  padding: 0.3rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  background: rgba(0, 0, 0, 0.03);
}

body.theme-2 .timer-display,
body.theme-3 .timer-display {
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.15);
}

.button-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition:
    transform var(--bt-transition-fast),
    box-shadow var(--bt-transition-fast),
    background var(--bt-transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
}

.btn:active {
  transform: scale(0.96);
}

.btn.timer-btn {
  background: var(--bt-teal);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
}

.btn.timer-btn.active {
  background: var(--bt-accent);
}

.btn.btn-secondary {
  background: #ffffff;
  color: var(--bt-text-main);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

body.theme-2 .btn.btn-secondary,
body.theme-3 .btn.btn-secondary {
  background: rgba(20, 20, 20, 0.9);
  color: #f4f4f4;
}

.btn.btn-ghost {
  background: transparent;
  color: inherit;
  border: 1px dashed rgba(0, 0, 0, 0.25);
}

body.theme-2 .btn.btn-ghost,
body.theme-3 .btn.btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
}

.btn:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Footer */

.bt-footer {
  max-width: 960px;
  margin: 0.5rem auto 0.75rem;
  padding: 0 0.75rem;
  font-size: 0.85rem;
  opacity: 0.9;
  line-height: 1.4;
}

/* Larger screens */

@media (min-width: 768px) {
  .app-shell {
    flex-direction: row;
    align-items: stretch;
  }

  .silhouette-area {
    flex: 2;
    min-height: 60vh;
  }

  .controls {
    flex: 1;
  }
}