/* =========================================================
   MakePrompt design tokens — mirrored in /design-tokens.md
   and in extension/content.css + extension/popup.css.
   Change a value in all three places if you change it here.
========================================================= */
:root {
  --bg-0: #0a0b0f;
  --bg-1: #111319;
  --bg-2: #1a1d26;
  --border: #2a2e3a;
  --text-0: #f4f5f7;
  --text-1: #a8adba;
  --text-2: #6b7080;
  --accent: #7c5cff;
  --accent-2: #5ce1ff;
  --success: #3ddc97;
  --error: #ff6b6b;

  --fs-sm: 0.8125rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.5rem;
  --fs-xl: 2.25rem;
  --fs-2xl: 3rem;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;
  --dur-slower: 700ms;

  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
  --glow-accent: 0 0 0 3px rgba(124, 92, 255, 0.35);
}

:root[data-theme="light"] {
  --bg-0: #f7f7fb;
  --bg-1: #ffffff;
  --bg-2: #f0f1f6;
  --border: #e2e4ec;
  --text-0: #14161c;
  --text-1: #4a4e5a;
  --text-2: #8b8f9c;
  --shadow-card: 0 8px 30px rgba(20, 22, 28, 0.08);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-0: #f7f7fb;
    --bg-1: #ffffff;
    --bg-2: #f0f1f6;
    --border: #e2e4ec;
    --text-0: #14161c;
    --text-1: #4a4e5a;
    --text-2: #8b8f9c;
    --shadow-card: 0 8px 30px rgba(20, 22, 28, 0.08);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background: var(--bg-0);
  color: var(--text-0);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--fs-base);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background var(--dur-slow) var(--ease-in-out), color var(--dur-slow) var(--ease-in-out);
}

/* ---------- animated background orbs ---------- */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.35;
  will-change: transform;
}
.orb-1 {
  width: 420px; height: 420px;
  background: var(--accent);
  top: -120px; left: -80px;
  animation: float-a 22s ease-in-out infinite;
}
.orb-2 {
  width: 360px; height: 360px;
  background: var(--accent-2);
  bottom: -140px; right: -60px;
  animation: float-b 26s ease-in-out infinite;
}
.orb-3 {
  width: 280px; height: 280px;
  background: var(--accent);
  top: 40%; right: 20%;
  opacity: 0.18;
  animation: float-c 30s ease-in-out infinite;
}
@keyframes float-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
}
@keyframes float-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, -30px) scale(1.15); }
}
@keyframes float-c {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 50px) scale(0.9); }
}

/* ---------- layout ---------- */
.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  max-width: 860px;
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 700; }
.brand-mark { color: var(--accent); font-size: var(--fs-md); }
.brand-name { font-size: var(--fs-base); letter-spacing: -0.01em; }

.theme-toggle {
  position: relative;
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-1);
  color: var(--text-1);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-base) var(--ease-out), color var(--dur-base);
}
.theme-toggle:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text-0); }
.theme-toggle:active { transform: translateY(0) scale(0.94); }
.theme-toggle .icon { position: absolute; width: 18px; height: 18px; transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.6); }
.icon-sun { opacity: 1; transform: rotate(0) scale(1); }
:root[data-theme="light"] .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.6); }
:root[data-theme="light"] .icon-moon { opacity: 1; transform: rotate(0) scale(1); }

.stage {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.hero { text-align: center; padding-top: var(--space-6); }
.hero-title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 var(--space-4);
}
.grad-text {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: var(--fs-md);
  color: var(--text-1);
  max-width: 520px;
  margin: 0 auto;
}

/* ---------- composer ---------- */
.composer { display: flex; flex-direction: column; gap: var(--space-4); }

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}
.pill {
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-1);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), color var(--dur-base), border-color var(--dur-base), background var(--dur-base);
}
.pill:hover { transform: translateY(-2px); color: var(--text-0); border-color: var(--accent); }
.pill.is-active {
  color: #fff;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.input-shell {
  position: relative;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  transition: box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.input-shell:focus-within {
  border-color: var(--accent);
  box-shadow: var(--shadow-card), var(--glow-accent);
}
.idea-input {
  width: 100%;
  resize: vertical;
  min-height: 84px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-0);
  font-family: inherit;
  font-size: var(--fs-md);
  line-height: 1.5;
  padding: 0;
  margin-bottom: var(--space-4);
}
.idea-input::placeholder { color: var(--text-2); }

.submit-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius-md);
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  color: #fff;
  font-family: inherit;
  font-size: var(--fs-base);
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.submit-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(124, 92, 255, 0.35); }
.submit-btn:active:not(:disabled) { transform: translateY(0) scale(0.98); }
.submit-btn:disabled { cursor: default; opacity: 0.9; }

.submit-dots, .submit-check { display: none; }
.submit-dots {
  align-items: center;
  gap: 5px;
}
.submit-dots i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: pulse-dot 1.1s ease-in-out infinite;
}
.submit-dots i:nth-child(2) { animation-delay: 0.15s; }
.submit-dots i:nth-child(3) { animation-delay: 0.3s; }
@keyframes pulse-dot {
  0%, 100% { transform: scale(0.6); opacity: 0.4; }
  50% { transform: scale(1); opacity: 1; }
}
.submit-check { width: 20px; height: 20px; }

.submit-btn.is-loading .submit-label { display: none; }
.submit-btn.is-loading .submit-dots { display: inline-flex; }
.submit-btn.is-success .submit-label { display: none; }
.submit-btn.is-success .submit-check { display: inline-block; }

.error-msg {
  color: var(--error);
  font-size: var(--fs-sm);
  text-align: center;
  margin: 0;
  min-height: 1em;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.error-msg.is-visible { opacity: 1; transform: translateY(0); }
.error-msg.is-shaking { animation: shake 0.4s var(--ease-in-out); }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}

/* ---------- result panel ---------- */
.result-panel[hidden] { display: none; }
.result-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}
.result-label { font-size: var(--fs-sm); font-weight: 600; color: var(--text-1); text-transform: uppercase; letter-spacing: 0.04em; }

.copy-btn {
  position: relative;
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-1);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-base), color var(--dur-base);
}
.copy-btn:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text-0); }
.copy-btn:active { transform: translateY(0) scale(0.92); }
.copy-btn .icon { position: absolute; width: 16px; height: 16px; transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out); }
.icon-check { opacity: 0; transform: scale(0.5); color: var(--success); }
.copy-btn.is-copied .icon-copy { opacity: 0; transform: scale(0.5); }
.copy-btn.is-copied .icon-check { opacity: 1; transform: scale(1); }
.copy-btn.is-copied { border-color: var(--success); animation: bounce-check 0.4s var(--ease-out); }
@keyframes bounce-check {
  0% { transform: scale(0.9); }
  50% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

.result-text {
  font-family: inherit;
  font-size: var(--fs-base);
  color: var(--text-0);
  white-space: pre-wrap;
  word-wrap: break-word;
  margin: 0 0 var(--space-4);
  line-height: 1.6;
}

.why-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: none;
  border: none;
  color: var(--text-1);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  padding: var(--space-2) 0;
  transition: color var(--dur-base);
}
.why-toggle:hover { color: var(--text-0); }
.chevron { width: 14px; height: 14px; transition: transform var(--dur-base) var(--ease-in-out); }
.why-toggle[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.why-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-slow) var(--ease-in-out);
}
.why-content.is-open { grid-template-rows: 1fr; }
.why-inner { overflow: hidden; }
.why-inner ul { margin: var(--space-2) 0 0; padding-left: var(--space-5); color: var(--text-1); font-size: var(--fs-sm); line-height: 1.7; }

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: var(--space-6) var(--space-6) var(--space-7);
}
.footer-badge {
  font-size: var(--fs-sm);
  color: var(--text-2);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
}

/* ---------- entrance animation base states (GSAP overrides via inline styles) ---------- */
[data-animate] { opacity: 1; }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .hero-title { font-size: var(--fs-xl); }
  .stage { padding: var(--space-5) var(--space-4) var(--space-7); gap: var(--space-6); }
  .topbar { padding: var(--space-4); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .orb { animation: none; opacity: 0.15; }
}