/* ShipNote landing - light product surface, dark hero accents */
:root {
  --bg: #f4f6f8;
  --bg-elevated: #ffffff;
  --ink: #0b1220;
  --ink-soft: #3a4558;
  --muted: #6b778c;
  --line: #d8dee8;
  --accent: #0d9f84;
  --accent-deep: #0a7a66;
  --accent-soft: #d8f5ee;
  --warn: #b45309;
  --warn-soft: #fff7ed;
  --ok: #047857;
  --ok-soft: #ecfdf5;
  --hero-bg: #0b1220;
  --hero-ink: #eef3f8;
  --hero-muted: #9aa8bc;
  --shadow: 0 18px 50px rgba(11, 18, 32, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --max: 1080px;
  --narrow: 720px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

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

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.wrap.narrow {
  width: min(var(--narrow), calc(100% - 2.5rem));
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 0.75rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 246, 248, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 0.5rem;
  background:
    linear-gradient(145deg, #56e0c2 0%, #0d9f84 55%, #0b1220 55%, #0b1220 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-size: 0.95rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

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

.nav .btn {
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.65rem 1.15rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-small {
  padding: 0.45rem 0.9rem;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 0.85rem 1.35rem;
  font-size: 1rem;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--hero-ink);
  border-color: rgba(238, 243, 248, 0.28);
}

.btn-ghost:hover {
  background: rgba(238, 243, 248, 0.08);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--muted);
  color: var(--ink);
}

.btn-ghost-dark {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line);
}

.btn-ghost-dark:hover {
  background: var(--bg);
  color: var(--ink);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Hero */
.hero {
  background:
    radial-gradient(1000px 480px at 80% -10%, rgba(86, 224, 194, 0.18), transparent 60%),
    radial-gradient(700px 400px at 10% 20%, rgba(86, 140, 255, 0.12), transparent 55%),
    var(--hero-bg);
  color: var(--hero-ink);
  padding: 4.5rem 0 5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #7df0d4;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 4.5vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 750;
}

.hero h1 .accent {
  color: #7df0d4;
}

.lede {
  margin: 0 0 1.5rem;
  max-width: 36rem;
  color: var(--hero-muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.hero-note {
  margin: 0;
  color: var(--hero-muted);
  font-size: 0.9rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.card-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.82rem;
  color: var(--hero-muted);
}

.card-chrome span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: #3a4558;
}

.card-chrome span:nth-child(1) { background: #ff5f57; }
.card-chrome span:nth-child(2) { background: #febc2e; }
.card-chrome span:nth-child(3) { background: #28c840; }

.card-chrome strong {
  margin-left: 0.5rem;
  color: var(--hero-ink);
  font-weight: 600;
}

.card-body {
  padding: 1.15rem 1.2rem 1.35rem;
}

.card-label {
  margin: 0.85rem 0 0.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7df0d4;
  font-weight: 700;
}

.card-label:first-child {
  margin-top: 0;
}

.card-title {
  margin: 0 0 0.4rem;
  font-weight: 650;
}

.card-body ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--hero-muted);
  font-size: 0.95rem;
}

.card-line {
  margin: 0;
  font-size: 0.95rem;
}

.card-line.muted {
  color: var(--hero-muted);
}

/* Problem */
.problem,
.why-pack {
  padding: 4rem 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line);
}

.problem h2,
.why-pack h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.problem p,
.why-pack p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

/* Sections shared */
.section-head {
  text-align: center;
  margin-bottom: 2.25rem;
}

.section-head h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
}

.section-sub {
  margin: 0 auto;
  max-width: 36rem;
  color: var(--ink-soft);
}

.demo,
.how,
.generate,
.offer {
  padding: 4.5rem 0;
}

.demo {
  background: var(--bg);
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(11, 18, 32, 0.04);
}

.panel header {
  padding: 1rem 1.15rem 0.5rem;
}

.panel h3 {
  margin: 0.55rem 0 0;
  font-size: 1.05rem;
}

.pill {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pill-warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.pill-ok {
  background: var(--ok-soft);
  color: var(--ok);
}

.code-block {
  margin: 0.5rem 1rem 1.15rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: #121a2a;
  color: #d7e0ec;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.55;
  overflow: auto;
  white-space: pre-wrap;
}

.pack {
  padding: 0 1.15rem 1.15rem;
}

.pack-block {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.pack-block:first-child {
  border-top: 0;
  padding-top: 0.35rem;
}

.pack-block h4 {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.pack-block p,
.pack-block li {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.pack-block ul,
.pack-block ol {
  margin: 0.35rem 0 0;
  padding-left: 1.15rem;
}

.pack-block .meta {
  font-weight: 600;
  color: var(--ink);
}

/* How */
.how {
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.steps li {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem 1.4rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-weight: 750;
  margin-bottom: 0.75rem;
}

.steps h3 {
  margin: 0 0 0.4rem;
  font-size: 1.08rem;
}

.steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

/* Generator */
.generate {
  background:
    radial-gradient(700px 280px at 50% 0%, rgba(13, 159, 132, 0.12), transparent 70%),
    var(--bg);
}

.gen-form {
  max-width: 44rem;
  margin: 0 auto 1.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.35rem 1.2rem;
  box-shadow: 0 8px 24px rgba(11, 18, 32, 0.04);
}

.gen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-wide {
  grid-column: 1 / -1;
  max-width: 16rem;
}

.field-full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--ink);
}

.field .req {
  color: var(--accent-deep);
}

.field input,
.field textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid rgba(13, 159, 132, 0.35);
  border-color: var(--accent);
}

.field-hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.gen-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.1rem;
}

.gen-form .form-msg {
  text-align: left;
  margin-top: 0.75rem;
}

.gen-output {
  max-width: 52rem;
  margin: 0 auto 2.5rem;
}

.output-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.output-toolbar h3 {
  margin: 0;
  font-size: 1.15rem;
}

.output-panels {
  display: grid;
  gap: 0.9rem;
}

.out-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.out-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
}

.out-panel h4 {
  margin: 0;
  font-size: 0.92rem;
}

.out-body {
  margin: 0;
  padding: 1rem 1.05rem 1.15rem;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-height: 22rem;
  overflow: auto;
}

.waitlist-block {
  max-width: 34rem;
  margin: 0 auto;
  text-align: center;
  padding-top: 0.5rem;
}

.waitlist-block h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.waitlist-block > p {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
}

.waitlist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  max-width: 34rem;
  margin: 0 auto 0.85rem;
}

@media (max-width: 640px) {
  .gen-grid {
    grid-template-columns: 1fr;
  }

  .field-wide {
    max-width: none;
  }
}

.waitlist input {
  flex: 1 1 14rem;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.85rem 1.1rem;
  font: inherit;
  background: var(--bg-elevated);
  color: var(--ink);
}

.waitlist input:focus {
  outline: 2px solid rgba(13, 159, 132, 0.35);
  border-color: var(--accent);
}

.form-msg {
  flex-basis: 100%;
  margin: 0.15rem 0 0;
  text-align: center;
  min-height: 1.4em;
  font-size: 0.95rem;
  color: var(--ok);
}

.form-msg.is-error {
  color: #b91c1c;
}

.fineprint {
  margin: 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

/* Offer */
.offer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--line);
}

.price-card {
  max-width: 34rem;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.6rem 1.8rem;
  box-shadow: var(--shadow);
  text-align: center;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.price {
  font-size: 3rem;
  font-weight: 780;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.price-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.price-features {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
  text-align: left;
}

.price-features li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.7rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.price-features li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.85rem;
  width: 0.7rem;
  height: 0.35rem;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.price-seller,
.price-cta-note {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: left;
}

.price-card .btn {
  margin-top: 0.35rem;
}

/* Disclosure + footer */
.disclosure {
  padding: 2.5rem 0;
  background: #e9eef4;
  border-top: 1px solid var(--line);
}

.disclosure p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.site-footer {
  padding: 2.25rem 0 2.75rem;
  background: var(--hero-bg);
  color: var(--hero-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-footer strong {
  color: var(--hero-ink);
}

.site-footer p {
  margin: 0.35rem 0 0;
  max-width: 22rem;
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  align-items: center;
  font-size: 0.92rem;
}

.footer-links a {
  color: var(--hero-ink);
  text-decoration: none;
}

.footer-links a:hover {
  color: #7df0d4;
}

.footer-links .muted {
  color: var(--hero-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .demo-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .nav a:not(.btn) {
    display: none;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (max-width: 520px) {
  .wrap {
    width: calc(100% - 1.5rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .price {
    font-size: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}