/* ==========================================================================
   ArchiFlow marketing website — shared styles
   Static site, no frameworks. Fonts: system stack (fast, private, offline-safe).
   ========================================================================== */

:root {
  --bg: #faf8f4;            /* warm paper */
  --surface: #ffffff;
  --ink: #171a20;           /* near-black */
  --ink-soft: #3c424c;
  --muted: #6b7280;
  --line: #e7e1d6;          /* warm hairline */
  --dark: #11141a;          /* hero / footer */
  --dark-2: #181c24;
  --gold: #c08a3e;          /* brass accent */
  --gold-soft: #f3e8d3;
  --gold-deep: #9a6c2c;
  --green: #1e7e4f;
  --green-soft: #e3f2e9;
  --red: #b3261e;
  --radius: 14px;
  --shadow: 0 18px 50px -18px rgba(20, 24, 32, 0.22);
  --shadow-sm: 0 8px 24px -12px rgba(20, 24, 32, 0.18);
  --maxw: 1160px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", "Noto Sans Devanagari", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: inherit; }
section { scroll-margin-top: 84px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- Typography ---------- */
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.02em; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 750; }
h3 { font-size: 1.12rem; font-weight: 700; }
p { margin: 0 0 1em; color: var(--ink-soft); }
.lead { font-size: 1.12rem; }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold-deep);
  margin-bottom: 0.9em;
}
.section { padding: 84px 0; }
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head p { font-size: 1.06rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--gold); color: #1b1408; box-shadow: 0 10px 26px -10px rgba(192,138,62,.7); }
.btn-primary:hover { background: #d1994b; transform: translateY(-1px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #2a2f3a; transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-light:hover { background: rgba(255,255,255,.18); }
.btn-block { width: 100%; }
.micro { font-size: 0.86rem; color: var(--muted); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px; flex: 0 0 36px;
  background: linear-gradient(135deg, var(--ink), #2b3342);
  color: var(--gold); display: grid; place-items: center;
  font-weight: 800; font-size: 1.05rem; letter-spacing: -0.02em;
}
.brand-name { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand-sub { display: block; font-size: 0.68rem; font-weight: 600; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; line-height: 1; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; font-weight: 600; font-size: 0.95rem; color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-cta .btn { padding: 10px 20px; font-size: 0.92rem; }
.signin-link { font-size: 0.92rem; font-weight: 600; color: var(--ink-soft); text-decoration: none; }
.signin-link:hover { color: var(--ink); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1200px 600px at 85% -10%, #232b3b 0%, var(--dark) 55%) , var(--dark);
  color: #f5f2ea;
  padding: 96px 0 100px;
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }
.hero .eyebrow { color: var(--gold); }
.hero h1 { color: #fff; }
.hero .lead { color: #c9cdd6; font-size: 1.16rem; max-width: 34em; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0 18px; }
.hero-note { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.9rem; color: #aab1bd; }
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.hero-note svg { flex: 0 0 16px; }

/* Dashboard mock (pure CSS) */
.mock {
  background: var(--dark-2); border: 1px solid rgba(255,255,255,.1);
  border-radius: 18px; box-shadow: 0 40px 90px -30px rgba(0,0,0,.6);
  overflow: hidden; transform: perspective(1400px) rotateY(-8deg) rotateX(2deg);
}
.mock-bar { display: flex; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.mock-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a4356; display: block; }
.mock-bar i:first-child { background: #e0655f; } .mock-bar i:nth-child(2) { background: #e8b34b; } .mock-bar i:nth-child(3) { background: #5fc98a; }
.mock-body { display: grid; grid-template-columns: 150px 1fr; min-height: 320px; }
.mock-side { border-right: 1px solid rgba(255,255,255,.08); padding: 16px 12px; display: flex; flex-direction: column; gap: 8px; }
.mock-side span { display: block; height: 12px; border-radius: 6px; background: rgba(255,255,255,.09); }
.mock-side span.on { background: var(--gold); opacity: .85; }
.mock-main { padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.mock-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.mock-card { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); border-radius: 12px; padding: 12px; }
.mock-card b { display: block; font-size: 1.15rem; color: #fff; }
.mock-card small { color: #9aa3b2; font-size: 0.72rem; }
.mock-line { height: 9px; border-radius: 5px; background: rgba(255,255,255,.1); }
.mock-line.short { width: 62%; }
.pill { display: inline-block; font-size: 0.68rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: rgba(95,201,138,.16); color: #7fe0a6; margin-top: 6px; }
.pill.amber { background: rgba(232,179,75,.16); color: #f0c46c; }

/* ---------- Trust strip ---------- */
.strip { background: var(--surface); border-bottom: 1px solid var(--line); }
.strip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 30px 0; }
.strip-item { display: flex; gap: 14px; align-items: flex-start; }
.strip-item svg { flex: 0 0 34px; }
.strip-item b { display: block; font-size: 0.98rem; }
.strip-item small { color: var(--muted); font-size: 0.86rem; }

/* ---------- Problem / solution ---------- */
.prob-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 8px; }
.prob-card, .sol-card { border-radius: var(--radius); padding: 34px; }
.prob-card { background: #fff; border: 1px solid var(--line); }
.prob-card h3 { color: var(--red); display: flex; align-items: center; gap: 10px; }
.sol-card { background: var(--dark); color: #ece7db; }
.sol-card h3 { color: var(--gold); display: flex; align-items: center; gap: 10px; }
.prob-card ul, .sol-card ul { margin: 14px 0 0; padding: 0; list-style: none; }
.prob-card li, .sol-card li { padding: 9px 0 9px 30px; position: relative; font-size: 0.98rem; }
.prob-card li { color: var(--ink-soft); }
.prob-card li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 14px; height: 14px;
  background: no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23b3261e' stroke-width='2.4'%3E%3Cpath d='M18 6 6 18M6 6l12 12'/%3E%3C/svg%3E"); }
.sol-card li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 14px; height: 14px;
  background: no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c08a3e' stroke-width='2.4'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E"); }

/* ---------- Features ---------- */
.features { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feat-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: transform .16s ease, box-shadow .16s ease;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.feat-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--gold-soft); color: var(--gold-deep); margin-bottom: 18px;
}
.feat-card h3 { margin-bottom: 0.4em; }
.feat-card p { font-size: 0.96rem; margin: 0; }

/* ---------- Why / built-for ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.why-list { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 20px; }
.why-list li { display: flex; gap: 16px; }
.why-num {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 50%;
  background: var(--ink); color: var(--gold); font-weight: 800;
  display: grid; place-items: center; font-size: 0.95rem;
}
.why-list b { display: block; margin-bottom: 2px; }
.why-list p { font-size: 0.94rem; margin: 0; }
.why-visual {
  background: linear-gradient(160deg, #1b2230, #10141a);
  border-radius: 20px; padding: 40px 36px; color: #e9e4d8;
  box-shadow: var(--shadow);
}
.why-visual h3 { color: var(--gold); }
.why-visual ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; }
.why-visual li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.95rem; color: #cfd4de; }
.why-visual li svg { flex: 0 0 18px; margin-top: 3px; }

/* ---------- Pricing ---------- */
.pricing { background: var(--dark); color: #ece7db; }
.pricing .section-head h2 { color: #fff; }
.pricing .section-head p { color: #b9bfcb; }
.price-card {
  max-width: 560px; margin: 0 auto; background: var(--surface); color: var(--ink);
  border-radius: 20px; padding: 44px 42px; box-shadow: 0 40px 90px -30px rgba(0,0,0,.55);
  border-top: 6px solid var(--gold); text-align: center;
}
.price-card .plan { font-weight: 800; letter-spacing: .12em; text-transform: uppercase; font-size: .8rem; color: var(--gold-deep); }
.price { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.03em; margin: 10px 0 2px; }
.price small { font-size: 1.05rem; font-weight: 600; color: var(--muted); }
.price-note { font-size: 0.92rem; color: var(--muted); margin-bottom: 22px; }
.price-list { list-style: none; margin: 0 0 28px; padding: 0; text-align: left; display: grid; gap: 11px; }
.price-list li { padding-left: 30px; position: relative; font-size: 0.98rem; color: var(--ink-soft); }
.price-list li::before { content: ""; position: absolute; left: 2px; top: 5px; width: 16px; height: 16px;
  background: no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231e7e4f' stroke-width='2.6'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E"); }
.trial-badge {
  display: inline-block; background: var(--green-soft); color: var(--green);
  font-weight: 700; font-size: 0.9rem; padding: 8px 18px; border-radius: 999px; margin-bottom: 18px;
}
.earlypay {
  margin-top: 26px; background: var(--gold-soft); border: 1px dashed var(--gold);
  border-radius: 12px; padding: 16px 18px; font-size: 0.94rem; color: #5c4419; text-align: left;
}
.earlypay b { color: var(--ink); }
.price-foot { margin-top: 26px; color: #9aa3b2; font-size: 0.88rem; }
.price-foot a { color: var(--gold); }

/* ---------- Trial form ---------- */
.trial-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.trial-copy ul { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 14px; }
.trial-copy li { display: flex; gap: 12px; font-size: 0.97rem; color: var(--ink-soft); }
.trial-copy li svg { flex: 0 0 20px; margin-top: 3px; }
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 38px 36px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 7px; }
.field input {
  width: 100%; padding: 13px 15px; border: 1.5px solid var(--line); border-radius: 10px;
  font-size: 1rem; font-family: inherit; background: #fff; color: var(--ink);
}
.field input:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(192,138,62,.18); }
.field .err { display: none; color: var(--red); font-size: 0.84rem; margin-top: 6px; font-weight: 600; }
.field.invalid input { border-color: var(--red); }
.field.invalid .err { display: block; }
.form-note { font-size: 0.85rem; color: var(--muted); margin-top: 16px; text-align: center; }
.form-note a { color: var(--gold-deep); font-weight: 600; }
.form-success { display: none; text-align: center; padding: 20px 0; }
.form-success.show { display: block; }
.form-success .tick {
  width: 64px; height: 64px; border-radius: 50%; background: var(--green-soft);
  color: var(--green); display: grid; place-items: center; margin: 0 auto 18px;
}
.form-error { display: none; background: #fdecea; color: var(--red); border: 1px solid #f5c6c2;
  border-radius: 10px; padding: 12px 16px; font-size: 0.92rem; margin-bottom: 16px; }
.form-error.show { display: block; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-item summary {
  padding: 20px 24px; font-weight: 700; font-size: 1.02rem; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%; background: var(--gold-soft); color: var(--gold-deep);
  display: grid; place-items: center; font-size: 1.15rem; font-weight: 700; line-height: 1; transition: transform .2s; }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 24px 22px; color: var(--ink-soft); font-size: 0.98rem; }
.faq-item .faq-a a { color: var(--gold-deep); font-weight: 600; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(135deg, var(--gold-deep), var(--gold)); color: #fff; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.88); max-width: 600px; margin: 0 auto 28px; }
.cta-band .btn-dark { box-shadow: 0 14px 30px -12px rgba(0,0,0,.45); }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: #b9bfcb; padding: 64px 0 0; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 44px; }
.foot-brand p { font-size: 0.92rem; color: #8f96a4; max-width: 30em; }
.foot-col h4 { color: #fff; font-size: 0.85rem; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 16px; }
.foot-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.foot-col a { text-decoration: none; font-size: 0.94rem; color: #b9bfcb; }
.foot-col a:hover { color: #fff; }
.foot-contact a { color: var(--gold); font-weight: 600; }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 0.84rem; color: #7d8492; }

/* ---------- Legal pages ---------- */
.legal-hero { background: var(--dark); color: #fff; padding: 70px 0 60px; }
.legal-hero h1 { color: #fff; margin-bottom: 0.3em; }
.legal-hero p { color: #aab1bd; margin: 0; }
.legal-body { max-width: 800px; margin: 0 auto; padding: 60px 22px 90px; }
.legal-body h2 { font-size: 1.25rem; margin: 2.2em 0 0.6em; padding-top: 1.2em; border-top: 1px solid var(--line); }
.legal-body h2:first-of-type { border-top: none; padding-top: 0; margin-top: 1.6em; }
.legal-body p, .legal-body li { font-size: 0.99rem; color: var(--ink-soft); }
.legal-body ul, .legal-body ol { padding-left: 22px; }
.legal-body li { margin-bottom: 0.5em; }
.legal-meta { font-size: 0.86rem; color: var(--muted); margin-bottom: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .mock { transform: none; max-width: 560px; }
  .feat-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .trial-grid { grid-template-columns: 1fr; gap: 40px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .strip-grid { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 680px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; position: absolute; top: 70px; left: 0; right: 0; background: var(--surface);
    flex-direction: column; align-items: stretch; padding: 12px 22px 20px; border-bottom: 1px solid var(--line); gap: 4px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
  .nav-cta .signin-link { display: none; }
  .feat-grid { grid-template-columns: 1fr; }
  .prob-grid { grid-template-columns: 1fr; }
  .mock-body { grid-template-columns: 110px 1fr; }
  .price { font-size: 2.6rem; }
  .form-card { padding: 30px 24px; }
  .hero { padding: 70px 0 76px; }
  .hero-ctas .btn { width: 100%; }
}