:root {
  --bg: #FDF6EC;
  --bg-glow: rgba(255, 228, 180, 0.35);
  --ink: #2C3E50;
  --ink-soft: rgba(44, 62, 80, 0.6);
  --card: rgba(253, 246, 236, 0.88);
  --card-border: rgba(44, 62, 80, 0.12);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.12);
  --focus: #E8A317;
  --overlay-z: 30;
  --control-z: 20;
  --toolbar-z: 25;
  --font-fredoka: "Fredoka", "Trebuchet MS", sans-serif;
  --font-gaegu: "Gaegu", cursive;
  --font-bubblegum: "Bubblegum Sans", cursive;
  --font-patrick: "Patrick Hand", cursive;
  --font-active: var(--font-fredoka);
  --char-size: clamp(5rem, 12vw, 10rem);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  overscroll-behavior: none;
  color-scheme: light only;
}

body {
  overflow: hidden;
  background: var(--bg);
  background-image: radial-gradient(circle at 50% 30%, var(--bg-glow), transparent 70%);
  color: var(--ink);
  font-family: var(--font-fredoka);
}

button {
  font: inherit;
}

button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--bg);
}

/* Prevent black backdrop in fullscreen on dark mode OS */
#app:fullscreen {
  background: var(--bg);
}
#app:-webkit-full-screen {
  background: var(--bg);
}

/* ── Typing page ────────────────────────────────────────────────────── */

#page {
  position: absolute;
  inset: 0;
  padding: 2rem 12vw 6rem;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: var(--char-size);
  line-height: 1.4;
  -webkit-overflow-scrolling: touch;
  cursor: text;
}

#page .char {
  display: inline-block;
  animation: letter-pop 300ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes letter-pop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  60% {
    transform: scale(1.15);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ── Hidden mobile input ────────────────────────────────────────────── */

#mobile-input {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ── Toolbar ────────────────────────────────────────────────────────── */

#toolbar {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--toolbar-z);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(44, 62, 80, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.tool-btn {
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  background: rgba(44, 62, 80, 0.08);
  color: var(--ink);
  cursor: pointer;
  touch-action: manipulation;
  transition: background 150ms ease, transform 150ms ease;
}

.tool-btn:hover {
  background: rgba(44, 62, 80, 0.14);
}

.tool-btn:active {
  transform: scale(0.92);
}

.font-btn {
  font-weight: 700;
  font-size: 1.1rem;
}

.clear-btn.is-confirming {
  background: rgba(217, 79, 122, 0.2);
  color: #D94F7A;
}

.color-dots {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.dot {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border: 3px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 150ms ease, border-color 150ms ease;
  padding: 0;
}

.dot:hover {
  transform: scale(1.15);
}

.dot.is-selected {
  border-color: rgba(44, 62, 80, 0.35);
  box-shadow: 0 0 0 2px var(--bg);
}

/* ── Fullscreen toggle ──────────────────────────────────────────────── */

.fullscreen-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: var(--control-z);
  min-width: 9rem;
  padding: 0.8rem 1rem;
  border: 0;
  border-radius: 999px;
  background: rgba(44, 62, 80, 0.08);
  color: var(--ink);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(16px);
  cursor: pointer;
  touch-action: manipulation;
  transition: all 200ms ease;
}

.fullscreen-toggle.is-close {
  min-width: 0;
  width: 2.2rem;
  height: 2.2rem;
  padding: 0;
  font-size: 1.2rem;
  line-height: 2.2rem;
  text-align: center;
  opacity: 0.5;
}

.fullscreen-toggle.is-close:hover {
  opacity: 0.85;
}

/* ── Start overlay ──────────────────────────────────────────────────── */

.start-overlay {
  position: absolute;
  inset: 0;
  z-index: var(--overlay-z);
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at top, rgba(255, 228, 180, 0.25), transparent 50%),
    rgba(253, 246, 236, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: opacity 240ms ease, visibility 240ms ease;
}

.start-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.start-card {
  width: min(92vw, 34rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--card-border);
  border-radius: 2rem;
  background: var(--card);
  box-shadow: var(--shadow);
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
}


.eyebrow {
  margin: 0 0 0.9rem;
  color: #D94F7A;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(14px);
}

.start-card h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 0.96;
  opacity: 0;
  transform: translateY(14px);
}

.intro {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 2.6vw, 1.18rem);
  line-height: 1.45;
  opacity: 0;
  transform: translateY(14px);
}


.actions {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.6rem;
  opacity: 0;
  transform: translateY(14px);
}

.github-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--ink-soft);
  opacity: 0.45;
  transition: opacity 200ms ease;
  opacity: 0;
  transform: translateY(14px);
}

.github-link:hover {
  opacity: 0.9;
}

.action {
  min-height: 3.8rem;
  padding: 1rem 1.25rem;
  border: 0;
  border-radius: 1.4rem;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.action:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.08);
}

.action-primary {
  background: linear-gradient(135deg, #D94F7A, #E8A317);
  color: #fff;
  font-weight: 800;
}

.action-secondary {
  background: rgba(44, 62, 80, 0.08);
  color: var(--ink);
  font-weight: 700;
}

/* ── Responsive ─────────────────────────────────────────────────────── */

@media (max-width: 720px) {
  .fullscreen-toggle:not(.is-close) {
    top: auto;
    right: 50%;
    bottom: 5rem;
    transform: translateX(50%);
  }

  #page {
    padding: 1.5rem 1rem 6rem;
  }

  .dot {
    width: 24px;
    height: 24px;
    min-width: 24px;
  }
}

@media (min-width: 721px) and (max-width: 1200px) {
  #page {
    padding: 2rem 6vw 6rem;
  }
}

/* ── Themes ─────────────────────────────────────────────────────────── */

/* ── Theme decorations container ─────────────────────────────────────── */

.theme-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.theme-decor svg {
  position: absolute;
  opacity: 0.08;
}

/* Space — deep navy with stars and planets */
[data-theme="space"] {
  --bg: #0F1B2D;
  --bg-glow: rgba(60, 80, 180, 0.25);
  --ink: #E0E8F5;
  --ink-soft: rgba(224, 232, 245, 0.6);
  --card: rgba(15, 27, 45, 0.9);
  --card-border: rgba(224, 232, 245, 0.12);
  --focus: #7C9FFF;
}
[data-theme="space"] body {
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1.5px 1.5px at 40% 10%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 55% 45%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 70% 20%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 85% 60%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 15% 70%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 50% 80%, rgba(255,255,255,0.25), transparent),
    radial-gradient(1.5px 1.5px at 90% 85%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 30% 90%, rgba(255,255,255,0.3), transparent),
    radial-gradient(circle at 50% 30%, var(--bg-glow), transparent 70%);
}
[data-theme="space"] #toolbar {
  background: rgba(15, 27, 45, 0.8);
  border-color: rgba(224, 232, 245, 0.1);
}
[data-theme="space"] .fullscreen-toggle {
  background: rgba(224, 232, 245, 0.1);
  color: var(--ink);
}
[data-theme="space"] .tool-btn {
  background: rgba(224, 232, 245, 0.1);
  color: var(--ink);
}
[data-theme="space"] .tool-btn:hover {
  background: rgba(224, 232, 245, 0.18);
}
[data-theme="space"] .dot.is-selected {
  border-color: rgba(224, 232, 245, 0.45);
  box-shadow: 0 0 0 2px var(--bg);
}
[data-theme="space"] .action-secondary {
  background: rgba(224, 232, 245, 0.1);
  color: var(--ink);
}
[data-theme="space"] .start-overlay {
  background:
    radial-gradient(circle at top, rgba(60, 80, 180, 0.2), transparent 50%),
    rgba(15, 27, 45, 0.6);
}
[data-theme="space"] .eyebrow {
  color: #7C9FFF;
}
[data-theme="space"] .action-primary {
  background: linear-gradient(135deg, #5B7FFF, #A855F7);
}

/* Princess — soft pink/lavender with sparkle */
[data-theme="princess"] {
  --bg: #FFF0F5;
  --bg-glow: rgba(255, 180, 220, 0.3);
  --ink: #6B2050;
  --ink-soft: rgba(107, 32, 80, 0.5);
  --card: rgba(255, 240, 245, 0.9);
  --card-border: rgba(200, 100, 160, 0.15);
  --focus: #FF69B4;
}
[data-theme="princess"] #toolbar {
  background: rgba(255, 240, 245, 0.8);
  border-color: rgba(200, 100, 160, 0.1);
}
[data-theme="princess"] .fullscreen-toggle {
  background: rgba(200, 100, 160, 0.08);
  color: var(--ink);
}
[data-theme="princess"] .tool-btn {
  background: rgba(200, 100, 160, 0.1);
  color: var(--ink);
}
[data-theme="princess"] .dot.is-selected {
  border-color: rgba(200, 100, 160, 0.4);
  box-shadow: 0 0 0 2px var(--bg);
}
[data-theme="princess"] .eyebrow {
  color: #D946A8;
}
[data-theme="princess"] .action-primary {
  background: linear-gradient(135deg, #F472B6, #C084FC);
}
[data-theme="princess"] .start-overlay {
  background:
    radial-gradient(circle at top, rgba(255, 180, 220, 0.25), transparent 50%),
    rgba(255, 240, 245, 0.6);
}

/* Forest — earthy greens with trees and nature */
[data-theme="forest"] {
  --bg: #EDF5E8;
  --bg-glow: rgba(120, 190, 100, 0.25);
  --ink: #2A3D1F;
  --ink-soft: rgba(42, 61, 31, 0.55);
  --card: rgba(237, 245, 232, 0.9);
  --card-border: rgba(42, 61, 31, 0.1);
  --focus: #66BB6A;
}
[data-theme="forest"] #toolbar {
  background: rgba(237, 245, 232, 0.8);
  border-color: rgba(42, 61, 31, 0.08);
}
[data-theme="forest"] .fullscreen-toggle {
  background: rgba(42, 61, 31, 0.08);
  color: var(--ink);
}
[data-theme="forest"] .tool-btn {
  background: rgba(42, 61, 31, 0.08);
  color: var(--ink);
}
[data-theme="forest"] .dot.is-selected {
  border-color: rgba(42, 61, 31, 0.35);
  box-shadow: 0 0 0 2px var(--bg);
}
[data-theme="forest"] .eyebrow {
  color: #2E7D32;
}
[data-theme="forest"] .action-primary {
  background: linear-gradient(135deg, #66BB6A, #FDD835);
  color: #2A3D1F;
}
[data-theme="forest"] .start-overlay {
  background:
    radial-gradient(circle at top, rgba(120, 190, 100, 0.2), transparent 50%),
    rgba(237, 245, 232, 0.6);
}

/* Ocean — deep blue underwater */
[data-theme="ocean"] {
  --bg: #E3F2FD;
  --bg-glow: rgba(100, 180, 230, 0.3);
  --ink: #0D3B66;
  --ink-soft: rgba(13, 59, 102, 0.55);
  --card: rgba(227, 242, 253, 0.9);
  --card-border: rgba(13, 59, 102, 0.1);
  --focus: #42A5F5;
}
[data-theme="ocean"] #toolbar {
  background: rgba(227, 242, 253, 0.8);
  border-color: rgba(13, 59, 102, 0.08);
}
[data-theme="ocean"] .fullscreen-toggle {
  background: rgba(13, 59, 102, 0.08);
  color: var(--ink);
}
[data-theme="ocean"] .tool-btn {
  background: rgba(13, 59, 102, 0.08);
  color: var(--ink);
}
[data-theme="ocean"] .dot.is-selected {
  border-color: rgba(13, 59, 102, 0.35);
  box-shadow: 0 0 0 2px var(--bg);
}
[data-theme="ocean"] .eyebrow {
  color: #1565C0;
}
[data-theme="ocean"] .action-primary {
  background: linear-gradient(135deg, #42A5F5, #26C6DA);
  color: #fff;
}
[data-theme="ocean"] .start-overlay {
  background:
    radial-gradient(circle at top, rgba(100, 180, 230, 0.25), transparent 50%),
    rgba(227, 242, 253, 0.6);
}

/* Sunset — warm coral sky */
[data-theme="sunset"] {
  --bg: #FFF3E0;
  --bg-glow: rgba(255, 160, 80, 0.3);
  --ink: #5D2E0C;
  --ink-soft: rgba(93, 46, 12, 0.55);
  --card: rgba(255, 243, 224, 0.9);
  --card-border: rgba(93, 46, 12, 0.1);
  --focus: #FF9800;
}
[data-theme="sunset"] #toolbar {
  background: rgba(255, 243, 224, 0.8);
  border-color: rgba(93, 46, 12, 0.08);
}
[data-theme="sunset"] .fullscreen-toggle {
  background: rgba(93, 46, 12, 0.08);
  color: var(--ink);
}
[data-theme="sunset"] .tool-btn {
  background: rgba(93, 46, 12, 0.08);
  color: var(--ink);
}
[data-theme="sunset"] .dot.is-selected {
  border-color: rgba(93, 46, 12, 0.35);
  box-shadow: 0 0 0 2px var(--bg);
}
[data-theme="sunset"] .eyebrow {
  color: #E65100;
}
[data-theme="sunset"] .action-primary {
  background: linear-gradient(135deg, #FF7043, #FFB74D);
  color: #fff;
}

/* Theme button */
.theme-btn {
  position: relative;
  font-size: 1rem;
}

/* ── Reduced motion ─────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  #page .char {
    animation: none;
  }

  .action,
  .start-overlay,
  .tool-btn,
  .dot {
    transition-duration: 0ms;
  }

  .start-card,
  .eyebrow,
  .start-card h1,
  .intro,
  .actions,
  .github-link {
    opacity: 1 !important;
    transform: none !important;
  }
}