/* Email Sprucer — landing page styles
   Brand tokens, type scale and radii per docs/BRANDING.md. */

:root {
  /* Colour tokens */
  --spruce: #1C5A48;
  --spruce-deep: #0E372B;
  --spruce-600: #236B54;
  --mint: #5FD09A;
  --mint-soft: #DBF1E5;
  --ink: #15201B;
  --muted: #59635D;
  --paper: #F4F3EE;
  --surface: #FFFFFF;
  --border: #E6E3DA;

  /* Semantic surfaces (light) */
  --bg: var(--paper);
  --card: var(--surface);
  --text: var(--ink);
  --text-muted: var(--muted);
  --heading: var(--spruce);
  --link: var(--spruce-600);

  /* Type */
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", "Segoe UI", system-ui, sans-serif;

  /* Radii */
  --radius-card: 16px;
  --radius-btn: 10px;

  /* Layout */
  --maxw: 1080px;
  --space: clamp(1rem, 3vw, 2rem);
}

/* Dark theme — honours OS preference (BRANDING dark tokens) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--spruce-deep);
    --card: #143329;
    --text: #E7F0EB;
    --text-muted: #A9BDB2;
    --heading: #E7F0EB;
    --link: var(--mint);
    --border: #1F4537;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.62;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--heading);
  margin: 0 0 0.4em;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

p { margin: 0 0 1rem; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--space);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--mint);
  color: var(--spruce-deep);
  padding: 0.6rem 1rem;
  border-radius: 0 0 var(--radius-btn) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-btn);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: var(--mint);
  color: var(--spruce-deep);   /* ink-on-mint for CTA fills only — never white on mint */
  box-shadow: 0 6px 18px rgba(95, 208, 154, 0.35);
}
.btn-primary:hover { background: #54c48d; }
.btn-ghost {
  background: transparent;
  color: var(--heading);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--spruce-600); }
.btn-sm { padding: 0.55rem 1rem; font-size: 0.92rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.85rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; color: var(--spruce); width: 1.7em; }
@media (prefers-color-scheme: dark) { .brand-mark { color: var(--mint); } }
.brand-mark svg { width: 100%; height: auto; display: block; }
.brand-mark-sm { width: 1.4em; }
.brand-word .word-email { color: var(--ink); }
.brand-word .word-sprucer { color: var(--spruce); letter-spacing: -0.03em; }
@media (prefers-color-scheme: dark) {
  .brand-word .word-email { color: #E7F0EB; }
  .brand-word .word-sprucer { color: var(--mint); }
}
.site-nav { display: flex; align-items: center; gap: 1.4rem; }
.site-nav a {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
}
.site-nav a.btn-primary { color: var(--spruce-deep); }
@media (max-width: 640px) {
  .site-nav a:not(.btn) { display: none; }
}

/* ---- Hero ---- */
.hero {
  padding-block: clamp(3.5rem, 9vw, 7rem);
  background:
    radial-gradient(120% 90% at 80% -10%, var(--mint-soft) 0%, transparent 55%),
    var(--bg);
}
@media (prefers-color-scheme: dark) {
  .hero {
    background:
      radial-gradient(120% 90% at 80% -10%, rgba(95, 208, 154, 0.16) 0%, transparent 55%),
      var(--bg);
  }
}
.hero-inner { max-width: 760px; }
.eyebrow {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.72rem;
  color: var(--spruce-600);
  margin-bottom: 1rem;
}
@media (prefers-color-scheme: dark) { .eyebrow { color: var(--mint); } }
.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.1rem);
  font-weight: 800;
  line-height: 1.02;
}
.lead {
  font-size: clamp(1.1rem, 2.4vw, 1.31rem);
  line-height: 1.5;
  color: var(--text);
  max-width: 56ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 1.6rem 0 1rem;
}
.hero-note { color: var(--text-muted); font-size: 0.98rem; }

/* ---- Generic sections ---- */
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section-alt { background: var(--card); border-block: 1px solid var(--border); }
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 700;
}
.section-intro {
  max-width: 60ch;
  color: var(--text-muted);
  font-size: 1.08rem;
  margin-bottom: 2.2rem;
}

/* ---- Steps (how it works) ---- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.6rem 1.4rem;
}
.step-num {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--mint-soft);
  color: var(--spruce);
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.9rem;
}
@media (prefers-color-scheme: dark) {
  .step-num { background: rgba(95, 208, 154, 0.18); color: var(--mint); }
}
.step h3 { font-size: 1.18rem; }
.step p { color: var(--text-muted); margin: 0; }

/* ---- Value grid ---- */
.value-grid {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.value-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(1.6rem, 3vw, 2.4rem);
}
.kicker {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.7rem;
  color: var(--spruce-600);
  margin-bottom: 0.6rem;
}
@media (prefers-color-scheme: dark) { .kicker { color: var(--mint); } }
.ticks { list-style: none; margin: 1.2rem 0 0; padding: 0; }
.ticks li {
  position: relative;
  padding-left: 1.7rem;
  margin-bottom: 0.55rem;
  color: var(--text);
}
.ticks li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--spruce-600);
  font-weight: 700;
}
@media (prefers-color-scheme: dark) { .ticks li::before { color: var(--mint); } }

/* ---- Features ---- */
.features-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.feature {
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  background: var(--card);
}
.feature h3 { font-size: 1.12rem; }
.feature p { color: var(--text-muted); margin: 0; }

/* ---- Pricing ---- */
.pricing-teaser .section-intro { margin-inline: auto; text-align: center; }
.pricing-teaser .section-title { text-align: center; }
.pricing-cards {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: 720px;
  margin-inline: auto;
}
.plan {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2rem 1.6rem;
  text-align: center;
}
.plan-featured {
  border-color: var(--mint);
  box-shadow: 0 10px 30px rgba(28, 90, 72, 0.10);
}
.plan-badge {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.65rem;
  color: var(--spruce-deep);
  background: var(--mint);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  margin-bottom: 0.8rem;
}
.plan-name { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--heading); margin-bottom: 0.2rem; }
.plan-price { font-family: var(--font-display); font-weight: 600; color: var(--spruce-600); margin-bottom: 0.6rem; }
@media (prefers-color-scheme: dark) { .plan-price { color: var(--mint); } }
.plan-desc { color: var(--text-muted); margin: 0; }

/* ---- CTA ---- */
.cta-section {
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(95, 208, 154, 0.18) 0%, transparent 60%),
    var(--spruce-deep);
}
.cta-inner { text-align: center; max-width: 560px; margin-inline: auto; }
.cta-inner h2 { color: #E7F0EB; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.cta-inner p { color: #B7CBC0; font-size: 1.1rem; margin-bottom: 1.6rem; }

/* ---- Footer ---- */
.site-footer {
  background: var(--spruce-deep);
  color: #B7CBC0;
  padding-block: 2.5rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #E7F0EB;
  font-family: var(--font-display);
  font-weight: 700;
}
.footer-brand .brand-mark { color: var(--mint); }
.footer-links { display: flex; gap: 1.4rem; }
.footer-links a { color: #B7CBC0; font-weight: 500; }
.footer-links a:hover { color: var(--mint); }
.footer-fine {
  flex-basis: 100%;
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: #8AA399;
}
.footer-fine a { color: #B7CBC0; }

@media (max-width: 600px) {
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}