:root {
  color-scheme: dark;
  --ink: #edf8ff;
  --muted: #9fb8ca;
  --panel: rgba(5, 28, 48, 0.82);
  --panel-strong: rgba(3, 18, 32, 0.96);
  --line: rgba(158, 214, 236, 0.18);
  --accent: #58d7ff;
  --accent-2: #6df0c8;
  --warn: #ffd166;
  --deep: #020a15;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(88, 215, 255, 0.18), transparent 30%),
    linear-gradient(180deg, #061d33 0%, var(--deep) 62%);
}

a {
  color: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px clamp(18px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(2, 10, 21, 0.82);
  backdrop-filter: blur(14px);
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand,
nav a {
  text-decoration: none;
  font-weight: 800;
}

nav {
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a {
  color: var(--muted);
  font-size: 0.94rem;
}

nav a:hover {
  color: var(--accent);
}

.brand-mark {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(88, 215, 255, 0.72);
  border-radius: 50%;
  background:
    radial-gradient(circle at 62% 36%, rgba(109, 240, 200, 0.95) 0 3px, transparent 4px),
    linear-gradient(145deg, rgba(88, 215, 255, 0.42), rgba(2, 10, 21, 0.4));
}

main {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 54px);
}

.hero {
  padding: clamp(20px, 5vw, 48px) 0 22px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 920px;
  margin-bottom: 14px;
  font-size: clamp(2.7rem, 8vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.lede {
  margin-bottom: 12px;
  color: #d9effb;
  font-size: clamp(1.08rem, 2.2vw, 1.45rem);
  line-height: 1.5;
}

.disclaimer {
  max-width: 820px;
  color: var(--muted);
  line-height: 1.65;
}

.planner {
  display: grid;
  gap: 18px;
}

.controls,
.settings,
.output-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.18);
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 14px;
  align-items: end;
  padding: 16px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

select,
button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}

select {
  width: 100%;
  padding: 9px 10px;
  color: var(--ink);
  background: rgba(2, 10, 21, 0.72);
}

button {
  padding: 0 14px;
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.ghost {
  background: rgba(2, 10, 21, 0.4);
}

.ghost:hover {
  border-color: rgba(88, 215, 255, 0.7);
}

.button-row {
  display: flex;
  gap: 8px;
}

.settings {
  padding: 0;
}

.settings summary {
  min-height: 50px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

fieldset {
  margin: 0;
  padding: 0 16px 16px;
  border: 0;
}

legend {
  height: 1px;
  overflow: hidden;
  position: absolute;
  width: 1px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.check-setting {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(2, 10, 21, 0.36);
  color: var(--ink);
}

.check-setting input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-2);
}

.output {
  display: grid;
  gap: 14px;
}

.output-card {
  padding: 16px;
}

.transition-card {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 16px;
}

.badge {
  display: inline-flex;
  width: fit-content;
  min-height: 30px;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  color: #00131e;
  background: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 1000;
  text-transform: uppercase;
}

.summary {
  color: #d9effb;
  line-height: 1.6;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.checklist {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  min-height: 34px;
  padding: 8px 10px 8px 38px;
  border: 1px solid rgba(158, 214, 236, 0.12);
  border-radius: 6px;
  background: rgba(2, 10, 21, 0.35);
  line-height: 1.45;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 12px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: rgba(88, 215, 255, 0.1);
}

.watch .checklist li::before {
  border-color: var(--warn);
  background: rgba(255, 209, 102, 0.1);
}

.fine-print {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

@media (max-width: 880px) {
  .controls,
  .transition-card,
  .section-grid,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .button-row {
    width: 100%;
  }

  .button-row button {
    flex: 1;
  }
}

@media (max-width: 620px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding: 18px 12px 30px;
  }

  .output-card,
  .controls {
    padding: 12px;
  }
}

.controls {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(150px, 0.42fr) auto;
}

.trim-card {
  overflow: hidden;
}

.trim-table {
  display: grid;
  gap: 0;
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.trim-row {
  display: grid;
  grid-template-columns: minmax(128px, 0.7fr) minmax(128px, 0.75fr) minmax(150px, 1fr) minmax(150px, 1fr) minmax(220px, 1.35fr);
  border-top: 1px solid var(--line);
  background: rgba(2, 10, 21, 0.26);
}

.trim-row:first-child {
  border-top: 0;
}

.trim-row > span,
.trim-row > strong {
  padding: 11px 12px;
  border-left: 1px solid var(--line);
  line-height: 1.45;
}

.trim-row > :first-child {
  border-left: 0;
}

.trim-head {
  color: var(--accent-2);
  background: rgba(2, 10, 21, 0.7);
  font-size: 0.78rem;
  font-weight: 1000;
  text-transform: uppercase;
}

.source-inline {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
}

.source-inline a {
  display: inline-block;
  margin-right: 8px;
  color: var(--accent);
  font-weight: 900;
  text-decoration: none;
}

.sources-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.sources-list li {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(2, 10, 21, 0.32);
}

.sources-list a {
  color: var(--accent);
  font-weight: 900;
  text-decoration: none;
}

.sources-list span {
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 980px) {
  .controls {
    grid-template-columns: 1fr;
  }

  .trim-table {
    border: 0;
    gap: 10px;
    overflow: visible;
  }

  .trim-head {
    display: none;
  }

  .trim-row {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
  }

  .trim-row > span,
  .trim-row > strong {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 10px;
    border-left: 0;
    border-top: 1px solid rgba(158, 214, 236, 0.12);
  }

  .trim-row > :first-child {
    border-top: 0;
  }

  .trim-row > span::before,
  .trim-row > strong::before {
    content: attr(data-label);
    color: var(--accent-2);
    font-size: 0.72rem;
    font-weight: 1000;
    text-transform: uppercase;
  }
}