/* Copyright (c) 2026 CrazyIdeaStudio, Inc. All rights reserved.
   inplan.ai marketing landing — "editorial planning paper" aesthetic. Static + render-
   blocking (linked from index.html), so the page is fully styled and crawlable without JS. */

#landing {
  --paper: #f7f4ec;
  --surface: #fdfbf6;
  --ink: #1c1a17;
  --ink-soft: #6f6857;
  --ink-faint: #a8a08c;
  --line: #e6dfce;
  --line-strong: #d8cfb8;
  --accent: #1f5c4d;
  --accent-press: #184a3e;
  --accent-tint: #e9f0ec;
  --amber: #c0791f;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --r: 12px;
  --r-sm: 8px;

  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(28, 26, 23, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  background-position: -13px -13px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
}
html, body { margin: 0; }
* { box-sizing: border-box; }
#landing ::selection { background: var(--accent-tint); }
#landing a { color: inherit; }
#landing main, #landing .lp-nav, #landing .lp-footer { max-width: 1080px; margin-inline: auto; padding-inline: 28px; }

/* nav */
.lp-nav { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; padding-bottom: 22px; }
.lp-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.lp-mark { width: 34px; height: 34px; border-radius: 9px; display: block; }
.lp-wm { font-family: var(--serif); font-weight: 500; font-size: 23px; letter-spacing: -0.01em; }
.lp-wm .d { color: var(--accent); }
.lp-navlinks { display: flex; align-items: center; gap: 22px; }
.lp-navlinks > a { font-size: 14px; color: var(--ink-soft); text-decoration: none; }
.lp-navlinks > a:hover { color: var(--ink); }
.lp-lang {
  appearance: none; font-family: var(--sans); font-size: 13px; color: var(--ink-soft);
  height: 36px; padding: 0 28px 0 12px; border-radius: var(--r-sm); cursor: pointer;
  border: 1px solid var(--line-strong); background: var(--surface);
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%), linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: calc(100% - 15px) 16px, calc(100% - 10px) 16px; background-size: 5px 5px; background-repeat: no-repeat;
  transition: border-color 0.16s ease;
}
.lp-lang:hover { border-color: var(--ink-faint); color: var(--ink); }

/* buttons */
.lp-btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--sans); font-size: 14px; font-weight: 500; line-height: 1;
  height: 40px; padding: 0 18px; border-radius: var(--r-sm); cursor: pointer;
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink);
  text-decoration: none; transition: transform 0.08s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}
.lp-btn:hover { box-shadow: 0 6px 22px -14px rgba(28, 26, 23, 0.5); border-color: var(--ink-faint); }
.lp-btn:active { transform: translateY(1px); }
.lp-btn--primary { background: var(--accent); border-color: var(--accent); color: #fbfaf6; }
.lp-btn--primary:hover { background: var(--accent-press); border-color: var(--accent-press); }
.lp-btn--ghost { background: transparent; }
.lp-btn--lg { height: 50px; padding: 0 26px; font-size: 15.5px; border-radius: 10px; }
.lp-btn--block { width: 100%; }

/* hero */
.lp-hero { padding: 64px 0 36px; }
.lp-eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
.lp-h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(44px, 8vw, 86px); line-height: 1.02; letter-spacing: -0.025em; margin: 0; font-optical-sizing: auto; }
.lp-lede { font-size: clamp(17px, 2.2vw, 21px); line-height: 1.55; color: var(--ink-soft); max-width: 54ch; margin: 26px 0 32px; }
.lp-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.lp-cta-note { font-family: var(--mono); font-size: 12.5px; color: var(--ink-faint); margin: 16px 0 0; }

/* sections */
.lp-section { padding: 56px 0; border-top: 1px solid var(--line); }
.lp-h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 4vw, 40px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 28px; max-width: 22ch; }
.lp-why { padding: 30px 0 8px; }
.lp-prose { font-size: 17px; line-height: 1.7; color: var(--ink-soft); max-width: 68ch; margin: 0 0 18px; }
.lp-prose strong { color: var(--ink); font-weight: 600; }

/* feature + pricing grids */
.lp-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lp-grid--3 { grid-template-columns: repeat(3, 1fr); align-items: start; }
.lp-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; }
.lp-card h3 { font-family: var(--serif); font-weight: 500; font-size: 20px; margin: 0 0 8px; }
.lp-card p { font-size: 15px; line-height: 1.6; color: var(--ink-soft); margin: 0; }
.lp-card em { color: var(--ink); font-style: italic; }

/* how it works */
.lp-steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 18px; }
.lp-steps li { display: flex; gap: 18px; align-items: flex-start; }
.lp-step-n { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fbfaf6; font-family: var(--mono); font-size: 15px; display: inline-flex; align-items: center; justify-content: center; }
.lp-steps h3 { font-family: var(--serif); font-weight: 500; font-size: 20px; margin: 4px 0 4px; }
.lp-steps p { font-size: 15.5px; line-height: 1.6; color: var(--ink-soft); margin: 0; max-width: 60ch; }

/* pricing */
.lp-price { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.lp-price--featured { border-color: var(--accent); box-shadow: 0 18px 50px -28px rgba(31, 92, 77, 0.55); }
.lp-price h3 { font-family: var(--serif); font-weight: 500; font-size: 22px; margin: 0 0 6px; }
.lp-amount { font-family: var(--serif); font-size: 40px; font-weight: 500; margin: 0; letter-spacing: -0.02em; }
.lp-amount span { font-family: var(--sans); font-size: 15px; color: var(--ink-faint); font-weight: 400; }
.lp-price-sub { font-size: 13.5px; color: var(--ink-faint); margin: 2px 0 16px; }
.lp-price ul { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 9px; }
.lp-price li { font-size: 14.5px; color: var(--ink-soft); padding-left: 22px; position: relative; }
.lp-price li::before { content: ""; position: absolute; left: 2px; top: 6px; width: 8px; height: 5px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* faq */
.lp-faq { display: grid; gap: 0; max-width: 760px; }
.lp-faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.lp-faq summary { font-family: var(--serif); font-size: 19px; font-weight: 500; cursor: pointer; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.lp-faq summary::-webkit-details-marker { display: none; }
.lp-faq summary::after { content: "+"; font-family: var(--sans); color: var(--accent); font-size: 22px; line-height: 1; }
.lp-faq details[open] summary::after { content: "−"; }
.lp-faq p { font-size: 15.5px; line-height: 1.65; color: var(--ink-soft); margin: 0 0 16px; max-width: 70ch; }

/* final CTA + footer */
.lp-final { text-align: center; padding: 80px 0; border-top: 1px solid var(--line); }
.lp-final .lp-h2 { margin: 0 auto 26px; }
.lp-footer { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; padding-top: 28px; padding-bottom: 48px; border-top: 1px solid var(--line); }
.lp-footer .lp-wm { font-size: 18px; }
.lp-footer nav { display: flex; gap: 18px; flex: 1; }
.lp-footer nav a, .lp-linkbtn { font-size: 14px; color: var(--ink-soft); text-decoration: none; background: none; border: 0; padding: 0; font-family: inherit; cursor: pointer; }
.lp-footer nav a:hover, .lp-linkbtn:hover { color: var(--ink); }
.lp-copy { font-family: var(--mono); font-size: 12px; color: var(--ink-faint); }

/* motion */
@keyframes lp-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.lp-hero > * { animation: lp-rise 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.lp-hero .lp-h1 { animation-delay: 0.05s; }
.lp-hero .lp-lede { animation-delay: 0.1s; }
.lp-hero .lp-cta { animation-delay: 0.16s; }
.lp-hero .lp-cta-note { animation-delay: 0.22s; }
@media (prefers-reduced-motion: reduce) { .lp-hero > * { animation: none; } }

/* responsive */
@media (max-width: 760px) {
  .lp-navlinks > a:not(.lp-btn) { display: none; }
  .lp-grid, .lp-grid--3 { grid-template-columns: 1fr; }
  .lp-footer nav { flex-basis: 100%; flex-wrap: wrap; }
}