/* FanOut — modern white design with dark mode */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f8f7;
  --surface: #ffffff;
  --border: #e5e9e7;
  --text: #14201c;
  --text-soft: #5b6b65;
  --accent: #0e7c66;
  --accent-strong: #0a5f4e;
  --accent-soft: #e2f3ee;
  --amber: #e8a13c;
  --shadow: 0 1px 3px rgba(20, 32, 28, .06), 0 8px 24px rgba(20, 32, 28, .07);
  --shadow-lift: 0 2px 6px rgba(20, 32, 28, .08), 0 14px 32px rgba(20, 32, 28, .12);
  --radius: 14px;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #0f1413;
  --bg-soft: #131a18;
  --surface: #17201d;
  --border: #263330;
  --text: #e8efec;
  --text-soft: #93a49e;
  --accent: #2fbf9c;
  --accent-strong: #4fd4b3;
  --accent-soft: #123830;
  --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-lift: 0 2px 6px rgba(0, 0, 0, .45), 0 14px 32px rgba(0, 0, 0, .4);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Sora", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background .25s, color .25s;
}
h1, h2, h3 { font-family: "Fraunces", Georgia, serif; line-height: 1.15; letter-spacing: -0.01em; }
h1 em {
  color: var(--accent); font-style: italic;
  text-decoration: underline; text-decoration-color: var(--amber);
  text-decoration-thickness: .07em; text-underline-offset: .14em;
}
a { color: var(--accent); text-decoration: none; }
main { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
::selection { background: var(--accent-soft); color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1080px; margin: 0 auto; padding: 18px 24px;
}
.logo { font-family: "Fraunces", serif; font-weight: 700; font-size: 1.35rem; color: var(--text); }
.logo-mark { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { color: var(--text-soft); font-weight: 500; font-size: .95rem; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.btn { color: #fff; }
.nav-email { color: var(--text-soft); font-size: .85rem; }
.usage-pill {
  background: var(--accent-soft); color: var(--accent-strong);
  padding: 4px 12px; border-radius: 99px; font-size: .8rem; font-weight: 600;
}

/* theme toggle */
.icon-btn {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 99px;
  width: 38px; height: 38px; cursor: pointer; font-size: 1rem; color: var(--text);
  display: grid; place-items: center;
  transition: border-color .15s, color .15s, transform .15s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); transform: rotate(15deg); }
[data-theme="light"] .moon, [data-theme="dark"] .sun { display: none; }

/* buttons */
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 10px; border: none;
  font-family: inherit; font-weight: 600; font-size: .95rem; cursor: pointer;
  transition: transform .12s, box-shadow .12s, background .12s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: #fff !important; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--accent-strong); }
[data-theme="dark"] .btn-primary { color: #08120f !important; }
.btn-outline { background: transparent; border: 1.5px solid var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent-soft); }
.btn-lg { padding: 14px 30px; font-size: 1.05rem; }
.btn-sm { padding: 6px 14px; font-size: .82rem; }
.btn[disabled] { opacity: .55; cursor: wait; transform: none; }

/* cards */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px;
}

/* hero */
.hero {
  text-align: center; padding: 72px 0 48px;
  background: radial-gradient(ellipse 70% 55% at 50% -10%, var(--accent-soft) 0%, transparent 70%);
}
.badge {
  display: inline-block; background: var(--accent-soft); color: var(--accent-strong);
  padding: 6px 16px; border-radius: 99px; font-size: .85rem; font-weight: 600; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); margin: 0 0 18px; }
.hero-sub { max-width: 620px; margin: 0 auto 28px; color: var(--text-soft); font-size: 1.13rem; }
.hero-cta { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 48px; }
.hero-note { color: var(--text-soft); font-size: .85rem; }

.hero-demo { max-width: 760px; margin: 0 auto; text-align: left; }
.demo-row { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.demo-in { flex: 1 1 260px; }
.demo-in p { color: var(--text-soft); font-size: .95rem; margin: 6px 0 0; }
.demo-label { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); }
.demo-arrow { font-size: 1.6rem; color: var(--amber); }
.demo-out { flex: 1 1 260px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 99px; font-size: .85rem; font-weight: 500;
}

/* sections */
.features, .pricing { padding: 64px 0; text-align: center; }
.features h2, .pricing h2 { font-size: 2rem; margin: 0 0 36px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.feature, .plan { transition: transform .2s ease, box-shadow .2s ease; }
.feature:hover, .plan:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.feature { text-align: left; }
.feature-icon { font-size: 1.8rem; }
.feature h3 { margin: 10px 0 8px; font-size: 1.15rem; }
.feature p { color: var(--text-soft); font-size: .95rem; margin: 0; }

/* pricing */
.pricing-grid { max-width: 720px; margin: 0 auto; }
.plan { text-align: left; position: relative; }
.plan h3 { margin: 0; font-size: 1.3rem; }
.price { font-family: "Fraunces", serif; font-size: 2.6rem; font-weight: 700; margin: 8px 0; }
.price span { font-size: 1rem; color: var(--text-soft); font-family: "Sora", sans-serif; font-weight: 400; }
.plan ul { list-style: none; padding: 0; margin: 0 0 20px; color: var(--text-soft); }
.plan li { padding: 5px 0 5px 26px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.plan-pro { border-color: var(--accent); border-width: 2px; }
.plan-flag {
  position: absolute; top: -13px; right: 20px; background: var(--amber); color: #2b1d05;
  font-size: .75rem; font-weight: 700; padding: 3px 12px; border-radius: 99px;
}

.footer {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  padding: 32px 0 40px; color: var(--text-soft); font-size: .85rem;
  border-top: 1px solid var(--border); margin-top: 40px;
}

/* auth */
.auth-wrap { display: grid; place-items: center; min-height: 70vh; }
.auth-card { width: 100%; max-width: 420px; }
.auth-title { font-size: 1.7rem; margin: 0 0 6px; }
.auth-sub { color: var(--text-soft); margin: 0 0 20px; }
.auth-card label { display: block; font-weight: 600; font-size: .9rem; margin: 14px 0 6px; }
.auth-card input {
  width: 100%; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-soft); color: var(--text); font-family: inherit; font-size: .95rem;
}
.auth-card input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.auth-actions { display: flex; gap: 12px; margin-top: 22px; }
.auth-actions .btn { flex: 1; }
.alert {
  background: #fdecea; color: #a13c2f; border-radius: 10px;
  padding: 10px 14px; font-size: .9rem; margin: 8px 0;
}
[data-theme="dark"] .alert { background: #3a1d19; color: #f2a094; }
.hint { color: var(--text-soft); font-weight: 400; font-size: .85em; }

/* dashboard */
.dash { padding: 32px 24px 64px; }
.dash h1 { font-size: 1.8rem; margin: 0 0 14px; }
.dash h2 { font-size: 1.3rem; }
.dash-input label { font-weight: 600; font-size: .92rem; display: block; margin-bottom: 8px; }
.dash-input textarea {
  width: 100%; padding: 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-soft); color: var(--text); font-family: inherit; font-size: .95rem;
  resize: vertical;
}
.dash-input textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
.controls-row { display: flex; gap: 32px; flex-wrap: wrap; margin: 18px 0 22px; }
.control-label { font-weight: 600; font-size: .92rem; display: block; margin-bottom: 8px; }
.platform-picks { display: flex; flex-wrap: wrap; gap: 8px; }
.pick {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 99px;
  padding: 7px 14px; font-size: .88rem; cursor: pointer; user-select: none;
  transition: background .15s, border-color .15s, color .15s;
}
.pick:hover { border-color: var(--accent); }
.pick:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.pick:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-strong); font-weight: 600; }
.pick input { accent-color: var(--accent); }
#tone {
  padding: 9px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-soft); color: var(--text); font-family: inherit; font-size: .92rem;
}

/* results */
.results { margin-top: 40px; }
.post-card { position: relative; }
.post-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.post-platform { font-weight: 700; font-size: .95rem; }
.copy-btn {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 12px; font-size: .8rem; cursor: pointer; color: var(--text); font-family: inherit;
  transition: border-color .15s, color .15s, transform .1s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-btn:active { transform: scale(.95); }
.post-body { white-space: pre-wrap; font-size: .92rem; color: var(--text-soft); max-height: 340px; overflow-y: auto; }

/* history */
.history { margin-top: 40px; }
.history-item {
  display: block; width: 100%; text-align: left; color: var(--text); font-family: inherit;
  border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-bottom: 10px;
  background: var(--surface); cursor: pointer; font-size: .9rem;
  transition: border-color .15s, box-shadow .15s;
}
.history-item:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.history-meta { color: var(--text-soft); font-size: .8rem; }

@media (max-width: 640px) {
  .nav { flex-wrap: wrap; gap: 10px; }
  .hero { padding-top: 40px; }
  .demo-arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}