/* ==========================================================================
   PuttyColors - Terminal Dark Theme
   Custom, dependency-free stylesheet (no Bootstrap / no jQuery plugins)
   ========================================================================== */

:root {
  /* Base surfaces */
  --bg:        #0d1117;
  --bg-alt:    #11161d;
  --bg-panel:  #161b22;
  --bg-term:   #1a1f27;
  --border:    #2a313c;
  --border-soft: #232a33;

  /* Text */
  --text:      #e6edf3;
  --text-dim:  #9aa6b2;
  --text-faint:#6b7785;

  /* Terminal-prompt accent palette (used sparingly, like a real color scheme) */
  --green:   #5fd97a;
  --cyan:    #5fd0e8;
  --purple:  #c79bff;
  --yellow:  #f0c674;
  --orange:  #ff9a5a;
  --pink:    #ff7ab8;

  --accent:        var(--green);
  --accent-strong: #46c463;

  --radius:    10px;
  --radius-sm: 6px;
  --shadow:    0 10px 40px -12px rgba(0, 0, 0, 0.55);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw: 1180px;
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.5em;
  color: var(--text);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: clamp(1.25rem, 2.4vw, 1.6rem); }
p  { margin: 0 0 1em; color: var(--text-dim); }

code, .mono { font-family: var(--font-mono); }

ul, ol { margin: 0 0 1em; padding-left: 1.3em; color: var(--text-dim); }
li { margin-bottom: 0.35em; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #06240f;
  padding: 10px 16px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
  font-family: var(--font-mono);
  font-weight: 600;
}
.skip-link:focus {
  left: 0;
}

/* Section rhythm */
.section {
  padding: 88px 0;
  border-top: 1px solid var(--border-soft);
}
.section:first-of-type { border-top: none; }
.section--alt { background: var(--bg-alt); }

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-head .eyebrow::before { content: "$ "; color: var(--text-faint); }
.section-head h2 { margin-bottom: 0.4em; }
.section-head p { font-size: 1.05rem; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn::before { content: "$"; color: rgba(0,0,0,0.35); font-weight: 700; }

.btn--primary {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #06240f;
  box-shadow: 0 8px 28px -10px rgba(95, 217, 122, 0.55);
}
.btn--primary:hover { color: #06240f; box-shadow: 0 12px 34px -8px rgba(95, 217, 122, 0.7); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost::before { color: var(--accent); }
.btn--ghost:hover { color: var(--text); border-color: var(--accent); background: rgba(95, 217, 122, 0.08); }

.btn--block { width: 100%; justify-content: center; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* --------------------------------------------------------------------------
   Top navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(13, 17, 23, 0.82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}
.brand:hover { color: var(--text); }
.brand .dot { color: var(--accent); }
.brand-mark {
  display: inline-flex;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--green), var(--cyan), var(--purple));
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #06240f;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 44px; height: 44px;
  color: var(--text);
  font-size: 1.25rem;
  cursor: pointer;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  display: inline-block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.92rem;
}
.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text);
  background: var(--bg-panel);
}
.nav-cta { margin-left: 8px; }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border-soft);
    padding: 10px 24px 20px;
    gap: 4px;
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { margin: 8px 0 0; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  padding: 76px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  background: radial-gradient(60% 60% at 30% 20%, rgba(95, 217, 122, 0.16), transparent 70%),
              radial-gradient(50% 50% at 80% 10%, rgba(199, 155, 255, 0.14), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(95, 217, 122, 0.1);
  border: 1px solid rgba(95, 217, 122, 0.28);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 20px;
}
.hero h1 { margin-bottom: 0.35em; }
.hero h1 .grad {
  background: linear-gradient(120deg, var(--green), var(--cyan) 45%, var(--purple) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead { font-size: 1.12rem; max-width: 52ch; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 22px;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
}
.hero-meta strong { color: var(--text); font-weight: 600; }

@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
}

/* --- Terminal window mock-up --------------------------------------------- */
/* Hero - real screenshot of the PuttyColors Windows app */
.app-shot {
  margin: 0;
  text-align: center;
}
.app-shot img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.app-shot figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* --------------------------------------------------------------------------
   Feature grid
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 22px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.card:hover {
  border-color: rgba(95, 217, 122, 0.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(95, 217, 122, 0.12);
  color: var(--accent);
  margin-bottom: 16px;
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 1.08rem; margin-bottom: 0.45em; }
.card p { margin-bottom: 0; font-size: 0.96rem; }

.card--cyan .icon   { background: rgba(95, 208, 232, 0.14); color: var(--cyan); }
.card--purple .icon { background: rgba(199, 155, 255, 0.14); color: var(--purple); }
.card--orange .icon { background: rgba(255, 154, 90, 0.14); color: var(--orange); }
.card--yellow .icon { background: rgba(240, 198, 116, 0.14); color: var(--yellow); }
.card--pink .icon   { background: rgba(255, 122, 184, 0.14); color: var(--pink); }

/* --------------------------------------------------------------------------
   Scheme gallery preview / grid
   -------------------------------------------------------------------------- */
.scheme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 18px;
}
.scheme-card {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.scheme-card:hover {
  transform: translateY(-4px);
  border-color: rgba(95, 217, 122, 0.45);
  box-shadow: var(--shadow);
}
.scheme-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--bg-term);
}
.scheme-card figcaption {
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  text-transform: capitalize;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.scheme-card figcaption .num { color: var(--text-faint); }
figure.scheme-card { margin: 0; }

.gallery-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.search-input {
  font-family: var(--font-mono);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 16px;
  min-width: 260px;
  font-size: 0.92rem;
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus { outline: none; border-color: var(--accent); }
.result-count { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-faint); }

/* --------------------------------------------------------------------------
   Download / pricing
   -------------------------------------------------------------------------- */
.dl-grid, .price-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
@media (max-width: 720px) {
  .dl-grid, .price-grid { grid-template-columns: 1fr; }
}
.dl-card, .price-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
}
.dl-card h3, .price-card h3 { margin-bottom: 6px; }
.dl-card .tag, .price-card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(95, 217, 122, 0.1);
  border: 1px solid rgba(95, 217, 122, 0.28);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 14px;
}
.price-card .price {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  margin: 14px 0 4px;
  color: var(--text);
}
.price-card .price small { font-size: 1rem; color: var(--text-faint); font-weight: 500; }
.price-features {
  list-style: none;
  margin: 14px 0 4px;
  padding: 0;
  text-align: left;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.price-features li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 8px;
}
.price-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.price-features li strong { color: var(--text); }
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  text-align: center;
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.82rem;
  margin: 22px 0 0;
}
.trust-badges span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.trust-badges span::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
}
.price-card--highlight { border-color: rgba(95, 217, 122, 0.5); position: relative; }
.price-card--highlight::before {
  content: "Best value";
  position: absolute;
  top: -13px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #06240f;
  padding: 5px 14px;
  border-radius: 999px;
  font-weight: 700;
}
.price-card form { margin: 18px 0 8px; }
.price-card .pp-btn {
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.price-card .pp-btn img { margin: 0 auto; }

.version-meta {
  text-align: center;
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.88rem;
  margin-bottom: 36px;
}
.version-meta .v { color: var(--accent); }

.note-box {
  margin-top: 36px;
  background: var(--bg-term);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
}
.note-box h4 { margin-bottom: 8px; font-size: 1rem; }
.note-box p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   FAQ accordion (native <details>)
   -------------------------------------------------------------------------- */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 400;
  transition: transform .2s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 22px 20px; }
.faq-item .faq-body p { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 36px;
}
@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.field input,
.field textarea {
  width: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 13px 16px;
  font-family: var(--font-sans);
  font-size: 0.96rem;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field textarea:focus { outline: none; border-color: var(--accent); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }

/* Honeypot — hidden from sighted users and screen readers, but present in
   the markup for spam bots that auto-fill every field. Clipped to a 1x1px
   box in place (rather than pushed off-screen) so it can't create layout
   overflow/scrollbars. */
.hp-field {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.contact-info { display: grid; gap: 18px; align-content: start; }
.contact-info .item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.contact-info .item .icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: rgba(95, 217, 122, 0.12);
  color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info .item .icon svg { width: 18px; height: 18px; }
.contact-info .item h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-bottom: 4px;
}
.contact-info .item p, .contact-info .item a { margin: 0; color: var(--text); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 36px 0;
  background: var(--bg-alt);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
}
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); }

/* --------------------------------------------------------------------------
   Cookie banner
   -------------------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  left: 16px; right: 16px; bottom: 16px;
  z-index: 999;
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
}
.cookie-banner p { margin: 0; color: var(--text-dim); flex: 1 1 320px; }
.cookie-banner[hidden] { display: none; }

/* --------------------------------------------------------------------------
   Generic content pages (license / policy / article / scheme detail)
   -------------------------------------------------------------------------- */
.page-hero {
  padding: 64px 0 16px;
  text-align: center;
}
.page-hero p { max-width: 640px; margin: 0 auto; }

.prose {
  max-width: 760px;
  margin: 0 auto;
}
.prose h2 { margin-top: 1.6em; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--text-dim); }
.prose a { text-decoration: underline; text-underline-offset: 3px; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-top: 8px;
}
.back-link::before { content: "←"; }

/* Single scheme detail */
.scheme-detail {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.scheme-detail img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin: 0 auto 22px;
}
.scheme-detail h1 { text-transform: capitalize; }

/* Breadcrumbs */
.crumbs {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 18px;
}
.crumbs a { color: var(--text-faint); }
.crumbs a:hover { color: var(--accent); }

/* Reveal-on-scroll (paired with js/main.js [data-reveal]) */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }