/* ============================================================
   shared.css — Sheety Tools design system
   One source of truth for tokens, nav, footer, and base styles.
   All pages link this file. Never duplicate these rules inline.
   ============================================================ */

/* ─── Tokens ─────────────────────────────────────────────── */
:root {
  /* Colour */
  --green:        #2ec97e;
  --green-d:      #1fa05e;
  --green-hover:  #3dda8f;
  --green-glow:   rgba(46, 201, 126, 0.15);
  --green-sub:    rgba(46, 201, 126, 0.08);
  --green-border: rgba(46, 201, 126, 0.15);
  --orange:       #e07a3a;
  --orange-sub:   rgba(224, 122, 58, 0.08);

  /* Backgrounds */
  --bg:           #18181b;
  --bg-2:         #1f1f23;
  --bg-card:      #242428;
  --bg-card-h:    #2a2a2f;

  /* Text */
  --ink:          #f0f0ec;
  --ink-2:        #a8a8a0;
  --ink-3:        #6a6a62;

  /* Borders */
  --border:       rgba(255, 255, 255, 0.08);
  --border-h:     rgba(255, 255, 255, 0.14);

  /* Shape */
  --radius:       14px;
  --radius-lg:    22px;

  /* Typography */
  --font-head:    'Bricolage Grotesque', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* ── Legacy aliases — old blog pages used these names ── */
  --text:          var(--ink);
  --text2:         var(--ink-2);
  --text3:         var(--ink-3);
  --surface:       var(--bg-card);
  --surface2:      var(--bg-card-h);
  --border2:       var(--border-h);
  --orange-border: rgba(224, 122, 58, 0.2);
  --orange-sub:    rgba(224, 122, 58, 0.08);
  --prose-max:     680px;
}

/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

/* ─── Nav ────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(24, 24, 27, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  flex-shrink: 0;
}
.nav-logo img { width: 28px; height: 28px; object-fit: contain; border-radius: 7px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover          { background: var(--bg-card); color: var(--ink); }
.nav-links a.nav-active     { color: var(--ink); }
.nav-links a.nav-cta {
  background: var(--green);
  color: #0d1f14;
  font-weight: 600;
  border-radius: 9px;
}
.nav-links a.nav-cta:hover  { background: var(--green-hover); }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: none;
  border: 1px solid var(--border-h);
  border-radius: 9px;
  cursor: pointer;
  padding: 0 11px;
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink-2);
  border-radius: 2px;
  transition: transform 0.22s, opacity 0.22s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: 62px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(24, 24, 27, 0.98);
  backdrop-filter: blur(20px);
  z-index: 99;
  padding: 1rem clamp(1.25rem, 5vw, 2rem) 2rem;
  flex-direction: column;
  gap: 0.2rem;
  border-top: 1px solid var(--border);
  overflow-y: auto;
}
.nav-drawer.open { display: flex; }
.nav-drawer a {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 0.9rem 0.75rem;
  border-radius: 10px;
  transition: background 0.15s, color 0.15s;
  border-bottom: 1px solid var(--border);
}
.nav-drawer a:last-of-type  { border-bottom: none; }
.nav-drawer a:hover         { background: var(--bg-card); color: var(--ink); }
.nav-drawer .drawer-cta {
  background: var(--green);
  color: #0d1f14;
  font-weight: 700;
  text-align: center;
  margin-top: 1rem;
  border-bottom: none;
  border-radius: 12px;
}

/* ─── Footer ─────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.25rem clamp(1.25rem, 5vw, 3rem);
}
.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-brand {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
}
.footer-links         { display: flex; gap: 1.5rem; list-style: none; flex-wrap: wrap; }
.footer-links a       { font-size: 0.82rem; color: var(--ink-3); transition: color 0.15s; }
.footer-links a:hover { color: var(--ink-2); }
.footer-bottom {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.footer-copy { font-size: 0.78rem; color: var(--ink-3); }
.footer-kofi {
  font-size: 0.78rem;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s;
}
.footer-kofi:hover { color: var(--ink-2); }
.footer-kofi span {
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 2px;
}

/* ─── Shared section patterns ────────────────────────────── */
section { padding: clamp(3.5rem, 8vw, 6rem) clamp(1.25rem, 5vw, 3rem); }
.section-inner   { max-width: 1080px; margin: 0 auto; }
.section-label {
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.65rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 0.85rem;
}
.section-sub {
  font-size: 1rem;
  color: var(--ink-2);
  max-width: 480px;
  line-height: 1.65;
  margin-bottom: 2.75rem;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--green);
  color: #0d1f14 !important;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  min-height: 48px;
}
.btn-primary:hover {
  background: var(--green-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 32px var(--green-glow);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--ink-2);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-h);
  transition: background 0.15s, color 0.15s;
  min-height: 48px;
}
.btn-ghost:hover { background: var(--bg-card); color: var(--ink); }

/* ─── Prose / article body ───────────────────────────────── */
/* Used by blog articles and terms */
.prose { max-width: 680px; line-height: 1.8; color: var(--ink-2); }
.prose h1, .prose h2, .prose h3 {
  font-family: var(--font-head);
  color: var(--ink);
  letter-spacing: -0.02em;
}
.prose h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 1rem; line-height: 1.1; }
.prose h2 { font-size: 1.3rem; font-weight: 700; margin: 2.5rem 0 0.75rem; }
.prose h3 { font-size: 1.05rem; font-weight: 600; margin: 1.75rem 0 0.5rem; }
.prose p  { margin-bottom: 1.1rem; }
.prose a  { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 1.4rem; margin-bottom: 1.1rem; }
.prose li { margin-bottom: 0.4rem; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose blockquote {
  border-left: 3px solid var(--green);
  padding-left: 1rem;
  color: var(--ink-3);
  font-style: italic;
  margin: 1.5rem 0;
}
.prose code {
  font-family: 'DM Mono', 'Fira Code', monospace;
  font-size: 0.875em;
  background: var(--bg-card);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--green);
}

/* ─── Scroll animations ──────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-links              { display: none; }
  .nav-hamburger          { display: flex; }
  .footer-inner           { flex-direction: column; align-items: flex-start; }
  .footer-bottom          { flex-direction: column; align-items: flex-start; }
}