/* ==========================================================================
   AppDeas - design system
   Concept: a drafting table / blueprint spec-sheet. Ideas arrive as rough
   sketches; the ones we take on get inked, gridded, dimensioned, and
   stamped APPROVED before they ever become a real build.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --ink: #0B1830;
  --ink-2: #0F2038;
  --panel: #14284D;
  --panel-2: #1C3660;
  --line-cyan: #7FC3E8;
  --line-cyan-dim: rgba(127, 195, 232, 0.28);
  --line-cyan-faint: rgba(127, 195, 232, 0.14);
  --paper: #F3EFE2;
  --paper-2: #EAE3CF;
  --ink-on-paper: #16233D;
  --stamp-red: #B23A2E;
  --amber: #E8A33D;
  --amber-deep: #C97F1F;
  --white: #FDFCF7;
  --muted: #A9BCD6;
  --muted-2: #6E86AC;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 2px;
  --max-w: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--white);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; color: var(--muted); }
.on-paper p { color: #3C4A66; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--line-cyan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--line-cyan);
  display: inline-block;
}

/* ---------- blueprint grid backgrounds ---------- */
.grid-bg {
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--line-cyan-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-cyan-faint) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: center top;
  position: relative;
}
.grid-bg.dense {
  background-size: 24px 24px;
}

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 24, 48, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-cyan-dim);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
}
.logo .mark {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}
.logo .mark svg { width: 100%; height: 100%; }
.logo small {
  color: var(--muted-2);
  font-weight: 400;
}

nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
nav.primary-nav a {
  font-size: 0.86rem;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.15s ease;
  position: relative;
}
nav.primary-nav a:hover { color: var(--white); }
nav.primary-nav a.active { color: var(--line-cyan); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-cyan-dim);
  color: var(--white);
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  cursor: pointer;
}

@media (max-width: 820px) {
  nav.primary-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--ink-2);
    border-bottom: 1px solid var(--line-cyan-dim);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 28px 24px;
    gap: 16px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.18s ease;
  }
  nav.primary-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle { display: block; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-weight: 500;
}
.btn-primary {
  background: var(--amber);
  color: #201302;
  border-color: var(--amber);
}
.btn-primary:hover { background: var(--amber-deep); border-color: var(--amber-deep); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: var(--line-cyan-dim);
}
.btn-ghost:hover { border-color: var(--line-cyan); color: var(--line-cyan); }
.btn-block { width: 100%; }

/* ---------- blueprint card (signature element) ---------- */
.card-blueprint {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line-cyan-dim);
  padding: 30px 26px;
  border-radius: var(--radius);
}
.card-blueprint::before,
.card-blueprint::after,
.card-blueprint .corner-tl,
.card-blueprint .corner-br {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--line-cyan);
  opacity: 0.9;
}
.card-blueprint::before {
  top: -1px; left: -1px;
  border-top: 2px solid var(--line-cyan);
  border-left: 2px solid var(--line-cyan);
}
.card-blueprint::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid var(--line-cyan);
  border-right: 2px solid var(--line-cyan);
}

.card-paper {
  background: var(--paper);
  color: var(--ink-on-paper);
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
}
.card-paper h3, .card-paper h2 { color: var(--ink-on-paper); }

/* ---------- stamp ---------- */
.stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stamp-red);
  border: 2px solid var(--stamp-red);
  padding: 5px 10px;
  border-radius: 3px;
  transform: rotate(-4deg);
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- sections ---------- */
section { padding: 88px 0; }
section.tight { padding: 56px 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

hr.divider {
  border: none;
  border-top: 1px dashed var(--line-cyan-dim);
  margin: 0;
}

/* ---------- pricing tag ---------- */
.price-tag {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.price-old {
  font-family: var(--font-mono);
  text-decoration: line-through;
  color: var(--muted-2);
  font-size: 1.1rem;
}
.price-new {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.6rem;
  color: var(--amber);
}
.price-note {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--line-cyan);
  letter-spacing: 0.04em;
}

/* ---------- steps ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line-cyan-dim);
}
.steps li {
  position: relative;
  padding: 0 0 40px 34px;
}
.steps li:last-child { padding-bottom: 0; }
.steps li::before {
  content: attr(data-n);
  position: absolute;
  left: -13px;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--ink);
  border: 1px solid var(--line-cyan);
  color: var(--line-cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.steps h3 { margin-bottom: 6px; }

/* ---------- grid layouts ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ---------- example / case-study cards ---------- */
.case-card { display: flex; flex-direction: column; height: 100%; }
.case-card .meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--line-cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.case-card .figure {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--amber);
  margin: 10px 0 6px;
}
.case-card .takeaway {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--line-cyan-dim);
  font-size: 0.88rem;
  color: var(--muted);
}

/* ---------- forms ---------- */
.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--line-cyan);
  margin-bottom: 8px;
}
.field .hint {
  font-size: 0.8rem;
  color: var(--muted-2);
  margin-top: 6px;
}
input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  background: var(--ink-2);
  border: 1px solid var(--line-cyan-dim);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 13px 14px;
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s ease;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--line-cyan);
}
textarea { min-height: 130px; resize: vertical; }
select { appearance: none; cursor: pointer; }

.char-counter {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted-2);
  text-align: right;
  margin-top: 6px;
}
.char-counter.over { color: var(--stamp-red); }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--muted);
}
.checkbox-row input { margin-top: 4px; }
.checkbox-row a { color: var(--line-cyan); text-decoration: underline; }

.form-error {
  background: rgba(178, 58, 46, 0.12);
  border: 1px solid var(--stamp-red);
  color: #F1B3AA;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  margin-bottom: 20px;
  display: none;
}
.form-error.show { display: block; }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line-cyan-dim);
  padding: 46px 0;
  font-size: 0.86rem;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}
footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
footer a { text-decoration: none; color: var(--muted-2); }
footer a:hover { color: var(--line-cyan); }
.footer-note { color: var(--muted-2); font-family: var(--font-mono); font-size: 0.78rem; }

/* ---------- misc ---------- */
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--line-cyan-dim);
  padding: 6px 10px;
  border-radius: 20px;
}

.hero-flex {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-flex { grid-template-columns: 1fr; }
}

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

.legal-body h2 { margin-top: 1.6em; }
.legal-body { max-width: 760px; }
.legal-body ul { color: var(--muted); padding-left: 1.2em; }
.legal-body li { margin-bottom: 0.5em; }

.callout {
  border-left: 3px solid var(--amber);
  background: rgba(232, 163, 61, 0.08);
  padding: 16px 18px;
  border-radius: var(--radius);
  font-size: 0.92rem;
}
.callout p:last-child { margin-bottom: 0; }

.center-status {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}