/* ── QuickLink ───────────────────────────────────────────────
   Colours, fonts, tool bar and theme come from ../../shared/rm-tools.css
   ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --indigo:    var(--rm-primary);
  --indigo-dk: var(--rm-primary-hover);
  --surface:   var(--rm-surface);
  --surface-2: var(--rm-surface-2);
  --border:    var(--rm-border);
  --text-1:    var(--rm-text);
  --text-2:    var(--rm-muted);
  --success:   var(--rm-success);
  --error:     var(--rm-danger);
  --radius-sm: var(--rm-radius);
  --radius-md: var(--rm-radius-lg);
  --shadow-sm: var(--rm-shadow-sm);
  --shadow-md: var(--rm-shadow-md);
  --shadow-lg: var(--rm-shadow-lg);
}

/* SVGs don't honour the hidden attribute in every browser */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

a { color: inherit; text-decoration: none; }

/* ── Layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 24px;
}

.logo-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

/* ── HERO (blueprint band) ────────────────────────────────── */
.hero { padding: 64px 0 72px; }

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-title {
  font-size: clamp(2.1rem, 5.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: 16px;
}

.hero-subtitle {
  max-width: 540px;
  font-size: 1.05rem;
  margin-bottom: 36px;
  line-height: 1.7;
}

/* ── Shortener Card ───────────────────────────────────────── */
.card {
  background: var(--surface);
  color: var(--text-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  text-align: left;
}

.shortener-card {
  width: 100%;
  max-width: 700px;
  padding: 24px;
}

.shortener-form { width: 100%; }

.input-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 6px 6px 14px;
  cursor: text;
  transition: border-color .2s, box-shadow .2s;
}

.input-group:focus-within {
  border-color: var(--indigo);
  box-shadow: 0 0 0 3px var(--rm-primary-soft);
}

.input-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-2);
  stroke-width: 2;
  stroke-linecap: round;
}

.url-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: .95rem;
  color: var(--text-1);
  outline: none;
  min-width: 0;
  padding: 8px 0;
}

.url-input::placeholder { color: var(--text-2); }

.btn-shorten { min-width: 128px; height: 42px; }
.btn-shorten:disabled { opacity: .7; cursor: wait; }
.btn-label { display: inline-flex; align-items: center; gap: 7px; }

.btn-spinner svg { animation: spin .8s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Error ────────────────────────────────────────────────── */
.error-msg {
  margin-top: 12px;
  padding: 10px 14px;
  background: color-mix(in srgb, var(--error) 10%, var(--surface));
  border: 1px solid var(--error);
  border-radius: var(--radius-sm);
  font-size: .875rem;
  color: var(--error);
}

/* ── Result ───────────────────────────────────────────────── */
.result-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

.result-area { width: 100%; }

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.result-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.result-label {
  font: 600 .7rem var(--rm-mono);
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--text-2);
}

.short-link {
  font: 600 1.2rem var(--rm-mono);
  color: var(--indigo);
  word-break: break-all;
  transition: color .2s;
}

.short-link:hover { color: var(--indigo-dk); text-decoration: underline; }

.btn-copy { border-color: var(--indigo); color: var(--indigo); flex-shrink: 0; }
.btn-copy.copied,
.btn-copy.copied:hover { background: var(--success); border-color: var(--success); color: var(--rm-surface); }

.result-original {
  margin-top: 10px;
  font-size: .8rem;
  color: var(--text-2);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.original-label { font-weight: 600; flex-shrink: 0; }

.original-url {
  word-break: break-all;
  font-family: var(--rm-mono);
  font-size: .78rem;
}

/* "Powered by" note under the card, on the blueprint band */
.hero .powered { margin-top: 18px; font-size: .82rem; }
.hero .powered a { color: var(--rm-amber); text-decoration: underline; text-underline-offset: 3px; }

/* ── Sections ─────────────────────────────────────────────── */
.section { padding: 72px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-title {
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}

.section-sub {
  text-align: center;
  color: var(--text-2);
  margin-bottom: 44px;
  font-size: 1rem;
}

/* ── Steps ────────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.step-card,
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s, transform .25s, border-color .25s;
}

.section-alt .feature-card { background: var(--surface-2); }

.step-card:hover,
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--indigo);
}

.step-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

.step-number {
  font: 600 1.6rem var(--rm-mono);
  line-height: 1;
  color: var(--rm-primary);   /* blue in light theme, amber in dark */
}

.step-card h3,
.feature-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }

.step-card p,
.feature-card p { font-size: .9rem; color: var(--text-2); line-height: 1.65; }

/* ── Features ─────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature-card .rm-icon { margin-bottom: 16px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero { padding: 44px 0 52px; }
  .container { padding-inline: 16px; }
  .shortener-card { padding: 16px; }
  .input-group { flex-wrap: wrap; padding: 10px 12px; }
  .btn-shorten { width: 100%; }
  .result-row { flex-direction: column; align-items: stretch; }
  .btn-copy { width: 100%; }
}