/* ==========================================================================
   Signature.Cat — Landing page styles
   Design System: warm minimalism + glassmorphism (ref: tryklack.com)
   Achromatic, calm, single pink accent. System fonts only (perf).
   ========================================================================== */

:root {
  /* Light mode (default) */
  --cream: #fff7ed;        /* main bg */
  --ink: #292524;          /* main text / headings */
  --muted: #6b6660;        /* secondary text */
  --muted-2: #888380;
  --accent: #f2a8ff;       /* pink accent */
  --accent-soft: #e89bf5;
  --panel: #292524;        /* dark glass panel in hero */
  --panel-text: #faf5ef;
  --border: #e7ddd0;       /* warm light border */
  --surface: #fffdf9;      /* raised card on cream */
  --shadow: 0 1px 2px rgba(41,37,36,.04), 0 8px 24px rgba(41,37,36,.06);
  --glass-bg: rgba(41,37,36,.82);
  --glass-border: rgba(250,245,239,.12);
  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1120px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --cream: #1c1917;
    --ink: #faf5ef;
    --muted: #a8a29e;
    --muted-2: #908a85;
    --accent: #f2a8ff;
    --accent-soft: #e89bf5;
    --panel: #292524;
    --panel-text: #faf5ef;
    --border: #3f3a37;
    --surface: #292524;
    --shadow: 0 1px 2px rgba(0,0,0,.2), 0 8px 28px rgba(0,0,0,.35);
    --glass-bg: rgba(28,25,23,.72);
    --glass-border: rgba(250,245,239,.10);
  }
}

/* Reset / base ------------------------------------------------------------ */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1,h2,h3,h4 { line-height: 1.12; letter-spacing: -0.02em; font-weight: 700; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img,svg { display: block; max-width: 100%; }
::selection { background: var(--accent); color: #1c1917; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }

/* Buttons ----------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s var(--ease), background .2s var(--ease), border-color .2s var(--ease), opacity .2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--cream); }
.btn-primary:hover { background: var(--accent); color: #1c1917; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-lg { padding: 15px 28px; font-size: 16px; }

/* Header ------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  background: color-mix(in srgb, var(--cream) 80%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -.02em; }
.brand .logo-mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  object-fit: cover; display: block;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { font-size: 15px; color: var(--muted); transition: color .18s; }
.nav-links a:hover { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 12px; }

/* In-menu language selector (shown only inside the mobile hamburger menu) */
.nav-lang { display: none; }
.nav-lang-label { display: block; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 10px; }
.nav-lang-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.nav-lang-opts button {
  display: flex; align-items: center; gap: 8px; padding: 11px 12px; font: inherit; font-size: 15px;
  color: var(--ink); background: var(--surface); border: 1px solid var(--border); border-radius: 10px; cursor: pointer;
  transition: border-color .18s, background .18s;
}
.nav-lang-opts button:hover { border-color: var(--accent); }
.nav-lang-opts button[aria-current="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, var(--surface)); font-weight: 600; }

/* Language switcher */
.lang { position: relative; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px;
  border: 1px solid var(--border); border-radius: 999px; background: transparent;
  color: var(--ink); font: inherit; font-size: 14px; cursor: pointer; transition: border-color .18s;
}
.lang-btn:hover { border-color: var(--accent); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 168px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); padding: 6px; display: none; flex-direction: column; gap: 2px;
}
.lang-menu.open { display: flex; }
.lang-menu button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 9px 11px; border: 0; background: transparent; color: var(--ink);
  border-radius: 8px; font: inherit; font-size: 14px; cursor: pointer;
}
.lang-menu button:hover, .lang-menu button[aria-current="true"] { background: color-mix(in srgb, var(--accent) 22%, transparent); }

.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); border-radius: 10px; padding: 8px; cursor: pointer; color: var(--ink); }

/* Hero -------------------------------------------------------------------- */
.hero { position: relative; padding: 88px 0 64px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 50% at 85% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%),
    radial-gradient(50% 40% at 10% 10%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); margin: 0 0 18px; max-width: 17ch; }
.hero .lede { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--muted); max-width: 46ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; color: var(--muted); font-size: 14px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }

/* Glass panel preview (dark UI mock) */
.glass {
  position: relative; border-radius: var(--radius); padding: 22px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  box-shadow: 0 24px 60px rgba(41,37,36,.22);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  color: var(--panel-text);
}
.glass-head { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.glass-dots { display: flex; gap: 6px; }
.glass-dots i { width: 11px; height: 11px; border-radius: 50%; background: rgba(250,245,239,.22); }
.glass-title { font-size: 13px; color: rgba(250,245,239,.65); margin-left: 4px; }
.sig-card { background: rgba(250,245,239,.05); border: 1px solid var(--glass-border); border-radius: 12px; padding: 16px; }
.sig-row { display: flex; gap: 14px; align-items: center; }
.sig-avatar { width: 54px; height: 54px; border-radius: 12px; flex: none; overflow: hidden;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  background-size: cover; background-position: center;
  transition: opacity .28s var(--ease), transform .28s var(--ease), filter .28s var(--ease); }
.sig-avatar.swapping { opacity: 0; transform: translateY(-4px); filter: blur(2px); }
@media (prefers-reduced-motion: reduce) { .sig-avatar { transition: none; } .sig-avatar.swapping { opacity: 1; transform: none; filter: none; } }
.sig-name { font-weight: 700; font-size: 16px; display: flex; flex-wrap: wrap; gap: 5px; }
.sig-role { font-size: 13px; color: rgba(250,245,239,.6); margin-top: 2px; }
.sig-divider { height: 1px; background: var(--glass-border); margin: 14px 0; }
.sig-lines { display: grid; gap: 11px; font-size: 13px; color: rgba(250,245,239,.78); }
.sig-field { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-height: 19px; }
.sig-ico { opacity: .55; flex: none; width: 16px; height: 16px; display: inline-block;
  background-color: currentColor; /* same color-modulation as before */
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: 16px 16px; mask-size: 16px 16px; }
.sig-ico.ico-mail { -webkit-mask-image: url(../img/ico-mail.png); mask-image: url(../img/ico-mail.png); }
.sig-ico.ico-phone { -webkit-mask-image: url(../img/ico-phone.png); mask-image: url(../img/ico-phone.png); }
.sig-ico.ico-office { -webkit-mask-image: url(../img/ico-office.png); mask-image: url(../img/ico-office.png); }
.sig-sep { opacity: .45; }

/* Animated variables: monospace placeholder vs resolved real value */
.sig-demo-host .var,
.sig-card .var {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--accent);
  transition: color .3s var(--ease), opacity .28s var(--ease), transform .28s var(--ease), filter .28s var(--ease);
  display: inline-block;
}
.sig-card .var.is-value {
  font-family: inherit;
  color: var(--panel-text);
}
.sig-name .var.is-value { color: var(--panel-text); }
.sig-role .var.is-value { color: rgba(250,245,239,.72); }
/* swap motion */
.sig-card .var.swapping { opacity: 0; transform: translateY(-4px); filter: blur(2px); }
@media (prefers-reduced-motion: reduce) {
  .sig-card .var { transition: none; }
  .sig-card .var.swapping { opacity: 1; transform: none; filter: none; }
}
/* Field hint label: explains what the variable is for */
.sig-hint {
  margin-left: auto; font-family: ui-sans-serif, system-ui, sans-serif; font-size: 10.5px;
  letter-spacing: .04em; text-transform: uppercase; color: rgba(250,245,239,.34);
  border: 1px solid var(--glass-border); border-radius: 6px; padding: 2px 7px; white-space: nowrap;
}
.glass-chip {
  position: absolute; right: -14px; bottom: -14px;
  background: var(--accent); color: #1c1917; font-weight: 700; font-size: 12px;
  padding: 8px 14px; border-radius: 999px; box-shadow: 0 8px 22px rgba(0,0,0,.2);
}

/* Logo strip / trust ------------------------------------------------------ */
.trust { padding: 26px 0 8px; }
.trust p { text-align: center; color: var(--muted-2); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 16px; }
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 28px; }
.trust-row .pill { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }

/* Sections ---------------------------------------------------------------- */
section[id] { scroll-margin-top: 88px; }
.section { padding: 76px 0; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head.center { margin-inline: auto; text-align: center; }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-soft); }
@media (prefers-color-scheme: dark) { .kicker { color: var(--accent); } }
.section h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 12px 0 14px; }
.section .sub { color: var(--muted); font-size: 1.05rem; }

/* Feature cards ----------------------------------------------------------- */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.icon-box {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  border: 1px solid var(--border); color: var(--ink); margin-bottom: 16px;
}
.icon-box svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .96rem; }

/* Code-ish variable chips */
.varlist { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.varlist code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--ink); padding: 5px 10px; border-radius: 8px;
}

/* How it works steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; position: relative; box-shadow: var(--shadow); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px;
  background: var(--ink); color: var(--cream); font-weight: 700; margin-bottom: 14px;
}
@media (prefers-color-scheme: dark){ .step::before { background: var(--accent); color: #1c1917; } }
.step h3 { font-size: 1.08rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .95rem; }

/* Security feature list */
.sec-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px 30px; margin-top: 8px; }
.sec-item { display: flex; gap: 13px; align-items: flex-start; }
.sec-item .tick { flex: none; width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--ink); }
.sec-item .tick svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; }
.sec-item h4 { font-size: 1rem; margin-bottom: 3px; }
.sec-item p { color: var(--muted); font-size: .92rem; }
.sec-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.sec-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; background: var(--surface); color: var(--muted); }

/* Pricing ----------------------------------------------------------------- */
.pricing-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: stretch; }
.calc {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow);
}
.calc label { display: block; font-weight: 600; margin-bottom: 12px; }
.seat-input { display: flex; align-items: center; gap: 12px; }
.stepper { display: flex; align-items: center; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--cream); }
.stepper button {
  width: 46px; height: 52px; border: 0; background: transparent; font-size: 22px; color: var(--ink); cursor: pointer;
  transition: background .15s;
}
.stepper button:hover { background: color-mix(in srgb, var(--accent) 22%, transparent); }
.stepper input {
  width: 96px; height: 52px; border: 0; border-inline: 1px solid var(--border); background: transparent;
  text-align: center; font: inherit; font-size: 19px; font-weight: 700; color: var(--ink); -moz-appearance: textfield;
}
.stepper input::-webkit-outer-spin-button, .stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.slider { width: 100%; margin-top: 18px; accent-color: var(--accent); }
.calc-result { margin-top: 24px; padding-top: 22px; border-top: 1px dashed var(--border); }
.calc-total { display: flex; align-items: baseline; gap: 8px; }
.calc-total .amount { font-size: 2.6rem; font-weight: 800; letter-spacing: -.03em; }
.calc-total .per { color: var(--muted); font-size: .95rem; }
.calc-sub { color: var(--muted); font-size: .92rem; margin-top: 6px; }
.calc-tier { display: inline-flex; align-items: center; gap: 7px; margin-top: 14px; font-size: 13px; font-weight: 600;
  background: color-mix(in srgb, var(--accent) 18%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
  border-radius: 999px; padding: 6px 13px; }
.calc-note { font-size: .82rem; color: var(--muted-2); margin-top: 14px; }

.tiers { display: flex; flex-direction: column; gap: 12px; }
.tier-row {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 20px;
  transition: border-color .2s, background .2s;
}
.tier-row.active { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, var(--surface)); }
.tier-row .range { font-weight: 600; }
.tier-row .range small { display: block; color: var(--muted); font-weight: 400; font-size: .82rem; }
.tier-row .price { font-weight: 800; font-size: 1.15rem; }
.tier-row .price small { font-weight: 400; color: var(--muted); font-size: .8rem; }
.tier-row.free .price { color: var(--accent-soft); }
@media (prefers-color-scheme: dark){ .tier-row.free .price { color: var(--accent); } }

/* Docs CTA band ----------------------------------------------------------- */
.band {
  background: var(--panel); color: var(--panel-text); border-radius: var(--radius);
  padding: 48px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 26px;
  position: relative; overflow: hidden;
}
.band h2 { font-size: 1.7rem; margin-bottom: 8px; }
.band p { color: rgba(250,245,239,.72); max-width: 48ch; }
.band .btn-primary { background: var(--accent); color: #1c1917; }
.band .btn-primary:hover { background: var(--accent-soft); }
.band .btn-ghost { border-color: rgba(250,245,239,.3); color: var(--panel-text); }

/* FAQ --------------------------------------------------------------------- */
.faq { max-width: 760px; margin-inline: auto; }
.faq details { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 4px 20px; margin-bottom: 12px; background: var(--surface); }
.faq summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--accent-soft); transition: transform .2s; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding: 0 0 18px; font-size: .96rem; }

/* Footer ------------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--border); padding: 50px 0 34px; margin-top: 24px; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; }
.footer-brand { max-width: 280px; }
.footer-brand p { color: var(--muted); font-size: .92rem; margin-top: 12px; }
.footer-cols { display: flex; flex-wrap: wrap; gap: 48px; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted-2); margin-bottom: 14px; }
.footer-col a { display: block; color: var(--muted); font-size: .94rem; margin-bottom: 9px; transition: color .15s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border); color: var(--muted-2); font-size: .86rem; }
.footer-loc { display: inline-flex; flex-wrap: wrap; gap: 6px 18px; }

/* Reveal-on-scroll animation */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* Responsive -------------------------------------------------------------- */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .steps, .sec-list { grid-template-columns: 1fr 1fr; }
  .pricing-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-links.mobile-open {
    display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--cream); border-bottom: 1px solid var(--border); padding: 18px 22px; gap: 16px;
  }
  .grid-3, .grid-2, .steps, .sec-list { grid-template-columns: 1fr; }
  .band { padding: 32px; }
  .hero { padding: 56px 0 40px; }
  .section { padding: 56px 0; }
  /* Move language selection into the hamburger menu on mobile */
  .nav-right .lang { display: none; }
  .nav-lang { display: block; border-top: 1px solid var(--border); padding-top: 14px; margin-top: 2px; }
  .footer-loc { flex-direction: column; align-items: flex-end; gap: 4px; }
}