/* Sahara Software — "Dune light" design system.
   Tokens are defined three times on purpose: light on :root, dark under
   prefers-color-scheme for the system setting, and dark again under
   [data-theme="dark"] so a manual choice beats the OS either way. */

:root {
  --bg-tint: #F7F0E1;
  --surface: #FFFFFF;
  --surface-alt: #F5EDDC;
  --card: #FBF8F1;
  --border: #EDE5D4;
  --ink: #13324E;
  --body: #516172;
  --muted: #8A8272;
  --accent: #C2651F;
  --accent-hover: #9A4F16;
  --icon: #20819E;
  --input-border: #E0D8C6;
  --input-bg: #FFFFFF;
  --panel: #FFFFFF;
  --panel-border: #E7DFCC;
  --row-border: #F0EADB;
  --footer: #10293F;
  --nav-bg: #FFFFFF;
  --toggle-bg: #F1EAD9;
  --toggle-active: #FFFFFF;
  --mock-border: #E3DBC9;
  --dune-1: #EDD9AE;
  --dune-2: #BFDCE4;
  --dune-3: #FFFFFF;
  --font-display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --font-body: "Instrument Sans", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-tint: #0E2438;
    --surface: #0B1F30;
    --surface-alt: #10293F;
    --card: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.12);
    --ink: #F2F6FA;
    --body: #A9BBCB;
    --muted: #8CA0B2;
    --icon: #7FB7C9;
    --input-border: rgba(255, 255, 255, 0.18);
    --input-bg: rgba(255, 255, 255, 0.07);
    --panel: rgba(255, 255, 255, 0.06);
    --panel-border: rgba(255, 255, 255, 0.14);
    --row-border: rgba(255, 255, 255, 0.10);
    --footer: #0A1B2C;
    --nav-bg: #10293F;
    --toggle-bg: rgba(255, 255, 255, 0.08);
    --toggle-active: rgba(255, 255, 255, 0.16);
    --mock-border: rgba(255, 255, 255, 0.15);
    --dune-1: #143A56;
    --dune-2: #1D5C74;
    --dune-3: #0B1F30;
  }
}

:root[data-theme="dark"] {
  --bg-tint: #0E2438;
  --surface: #0B1F30;
  --surface-alt: #10293F;
  --card: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.12);
  --ink: #F2F6FA;
  --body: #A9BBCB;
  --muted: #8CA0B2;
  --icon: #7FB7C9;
  --input-border: rgba(255, 255, 255, 0.18);
  --input-bg: rgba(255, 255, 255, 0.07);
  --panel: rgba(255, 255, 255, 0.06);
  --panel-border: rgba(255, 255, 255, 0.14);
  --row-border: rgba(255, 255, 255, 0.10);
  --footer: #0A1B2C;
  --nav-bg: #10293F;
  --toggle-bg: rgba(255, 255, 255, 0.08);
  --toggle-active: rgba(255, 255, 255, 0.16);
  --mock-border: rgba(255, 255, 255, 0.15);
  --dune-1: #143A56;
  --dune-2: #1D5C74;
  --dune-3: #0B1F30;
}

/* ------------------------------------------------------------------ base */

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--body);
  background: var(--bg-tint);
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  text-wrap: pretty;
}

h1 { font-size: clamp(34px, 4.5vw, 64px); line-height: 1.06; }
h2 { font-size: clamp(28px, 3.2vw, 40px); }
h3 { font-size: 18px; }

p { margin: 0; }
.lead { font-size: clamp(15.5px, 1.4vw, 19px); line-height: 1.6; }
p, .feature-card p { line-height: 1.65; }
strong { color: var(--ink); }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

img { max-width: 100%; height: auto; }
img[height] { height: auto; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.flow > * + * { margin-top: 18px; }
.flow-lg > * + * { margin-top: 48px; }

.eyebrow {
  font-size: 13px;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--surface);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn {
  display: inline-block;
  padding: 14px 28px;
  border: 0;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #FFFFFF; }
.btn-primary:hover { background: var(--accent-hover); color: #FFFFFF; }
.btn[disabled] { opacity: 0.6; cursor: default; }

.link-underline {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}
.link-underline:hover { color: var(--accent); }

/* ---------------------------------------------------------------- header */

.site-header {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 10;
}

.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo-chip {
  display: inline-flex;
  background: #FFFFFF;
  border-radius: 8px;
  padding: 4px 8px;
}
.logo-chip img { height: 34px; width: auto; display: block; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav > a {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}
.site-nav > a:hover { color: var(--accent); }
.nav-cta { padding: 10px 20px; border-radius: 8px; font-size: 15px; color: #FFFFFF; }
.site-nav > a.nav-cta:hover { color: #FFFFFF; }

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--toggle-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}
.theme-toggle button {
  width: 26px;
  height: 26px;
  border: 0;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  padding: 0;
}
.theme-toggle button.active { background: var(--toggle-active); }

.nav-burger {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 8px;
  cursor: pointer;
}

/* ------------------------------------------------------------------ hero */

.hero { background: var(--bg-tint); }
.hero-inner {
  padding-top: 96px;
  padding-bottom: 48px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}
.hero h1 { max-width: 840px; }
.hero .lead { max-width: 660px; }
.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 10px;
}

/* The 404 page reuses the hero as a full-height centred panel. */
.hero-centered { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; }
.hero-centered .hero-inner { padding-top: 48px; }

.dunes { display: block; width: 100%; height: clamp(110px, 14vw, 210px); }
.dune-1 { fill: var(--dune-1); }
.dune-2 { fill: var(--dune-2); }
.dune-3 { fill: var(--dune-3); }

/* -------------------------------------------------------------- sections */

.section { background: var(--surface); padding: 72px 0 88px; }
.section-alt { background: var(--surface-alt); padding: 80px 0; }
.section-head { max-width: 780px; display: flex; flex-direction: column; gap: 16px; }

/* ---------------------------------------------------------- product mock */

.product-figure { margin: 0; display: flex; flex-direction: column; gap: 16px; }
.product-figure figcaption {
  font-size: 13.5px;
  color: var(--muted);
  text-align: center;
}

.product-window {
  border: 1px solid var(--mock-border);
  border-radius: 16px;
  overflow: hidden;
  background: #FFFFFF;
  box-shadow: 0 30px 70px -40px rgba(19, 50, 78, 0.35);
}

/* The app window keeps Postify's own colours in both site themes. */
.window-bar {
  height: 44px;
  background: #F4F1E9;
  border-bottom: 1px solid #E7DFCE;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: #D8CFBB; }
.window-title { flex: 1; text-align: center; font-size: 12.5px; color: #8A8272; }
.window-spacer { width: 54px; }

.window-body { display: flex; }

.app-sidebar {
  width: 216px;
  flex-shrink: 0;
  background: #13324E;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.app-brand {
  font-family: var(--font-display);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 18px;
  padding: 0 8px;
}
.client-switcher {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.client-switcher span { color: #E8EEF4; font-size: 13px; font-weight: 600; }
.app-nav { display: flex; flex-direction: column; gap: 2px; }
.app-nav-item { padding: 8px 10px; border-radius: 7px; font-size: 13.5px; color: #AEC0D2; }
.app-nav-item.active { font-weight: 600; color: #FFFFFF; background: rgba(255, 255, 255, 0.12); }

.app-main {
  flex: 1;
  min-width: 0;
  background: #FDFCF9;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.agent-strip {
  background: #F6F1E4;
  border: 1px solid #E7DFCE;
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.agent-prompt { display: flex; gap: 10px; align-items: flex-start; }
.agent-prompt svg { flex-shrink: 0; margin-top: 1px; }
.agent-prompt p { font-size: 13.5px; line-height: 1.55; color: #37485A; }
.agent-prompt strong { color: #13324E; }
.agent-chips { display: flex; flex-wrap: wrap; gap: 6px; padding-left: 28px; }
.agent-chips span {
  font-size: 11px;
  font-weight: 600;
  color: #8A6420;
  background: #FFFFFF;
  border: 1px solid #E7DFCE;
  border-radius: 999px;
  padding: 3px 9px;
}

.app-cal-head { display: flex; align-items: center; justify-content: space-between; }
.app-month { font-family: var(--font-display); font-size: 19px; font-weight: 700; color: #13324E; }
.app-new-post {
  background: var(--accent);
  color: #FFFFFF;
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 7px;
}

.cal-weekdays { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.cal-weekdays span { font-size: 11px; color: #98A2AE; text-align: center; padding: 4px 0; }

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-right: 1px solid #EFE9DC;
  border-bottom: 1px solid #EFE9DC;
}
.cal-cell {
  min-height: 62px;
  border-top: 1px solid #EFE9DC;
  border-left: 1px solid #EFE9DC;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #FFFFFF;
}
.cal-n { font-size: 11px; font-weight: 600; color: #37485A; }
.cal-cell.dim .cal-n { color: #B9C2CC; }

.chip {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  align-self: flex-start;
  white-space: nowrap;
}
.chip-teal { background: #DCEEF3; color: #1E6E86; border: 1px solid #C2E0EA; }
.chip-orange { background: #F9E4CE; color: #A05716; border: 1px solid #F0D3B0; }
.chip-navy { background: #E2E9F1; color: #2A4C6E; border: 1px solid #CFDCE9; }
.chip-draft { background: #FFFFFF; color: #8A6420; border: 1px dashed #C9A96E; }

/* Mobile stand-in for the calendar window: the agent conversation. */
.agent-card {
  display: none;
  border: 1px solid var(--mock-border);
  border-radius: 14px;
  overflow: hidden;
  background: #FFFFFF;
  box-shadow: 0 20px 50px -30px rgba(19, 50, 78, 0.35);
}
.agent-card-head {
  height: 48px;
  background: #13324E;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
}
.agent-card-brand { color: #FFFFFF; font-family: var(--font-display); font-weight: 700; font-size: 15px; }
.agent-card-context { color: #7E93A8; font-size: 12px; }
.agent-card-body {
  background: #FDFCF9;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.agent-card-body .agent-chips { padding-left: 0; }
.agent-card-body .agent-chips span { background: #F6F1E4; }
.bubble { max-width: 88%; padding: 10px 14px; font-size: 13.5px; line-height: 1.5; }
.bubble-user {
  align-self: flex-end;
  background: #13324E;
  color: #FFFFFF;
  border-radius: 12px 12px 3px 12px;
}
.bubble-agent {
  align-self: flex-start;
  background: #F1ECDF;
  color: #37485A;
  border-radius: 12px 12px 12px 3px;
}

/* -------------------------------------------------------------- features */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.feature-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.feature-card p { font-size: 14.5px; }

/* ---------------------------------------------------------------- studio */

.studio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  align-items: start;
}
.studio-grid p { font-size: 16px; line-height: 1.7; }

.facts-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 28px;
}
.facts-mark {
  display: inline-flex;
  background: #FFFFFF;
  border-radius: 10px;
  padding: 6px 8px;
  margin-bottom: 16px;
}
.facts-mark img { height: 48px; width: auto; display: block; }
.facts-card dl { margin: 0; }
.facts-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--row-border);
}
.facts-row:last-child { border-bottom: 0; }
.facts-row dt { font-size: 13px; color: var(--muted); font-weight: 600; }
.facts-row dd { margin: 0; font-size: 14px; color: var(--ink); font-weight: 600; text-align: right; }
.facts-row dd a { font-weight: 600; }

/* --------------------------------------------------------------- contact */

.contact-inner {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}
.contact-inner .lead { max-width: 560px; }

.contact-form {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 28px;
  margin-top: 10px;
  width: min(620px, 100%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink); }
.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 12px 14px;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
  border-color: transparent;
}
.contact-form .btn { align-self: flex-start; padding: 13px 26px; font-size: 15px; }
.field-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-status { font-size: 14px; line-height: 1.5; }
.form-status.error { color: #B0492E; }

/* ---------------------------------------------------------------- footer */

.site-footer { background: var(--footer); padding: 56px 0 40px; }
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px 48px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.mark-chip { display: inline-flex; background: #FFFFFF; border-radius: 10px; padding: 5px 7px; }
.mark-chip img { height: 30px; width: auto; display: block; }
.footer-name { font-family: var(--font-display); color: #FFFFFF; font-size: 19px; font-weight: 700; }
.footer-tagline { font-size: 14px; line-height: 1.6; color: #93A7BA; max-width: 320px; }
.footer-cols { display: flex; gap: 72px; grid-row: 1 / 3; grid-column: 2; }
.footer-cols div { display: flex; flex-direction: column; gap: 12px; }
.footer-cols h4 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #6E88A0;
  font-weight: 700;
}
.footer-cols a { color: #D7E2EC; font-size: 14px; text-decoration: none; }
.footer-cols a:hover { color: #FFFFFF; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 40px;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
  color: #7E93A8;
}
.footer-bottom a { color: #D7E2EC; text-decoration: none; }
.footer-bottom a:hover { color: #FFFFFF; }
/* Legal pages carry the bottom row alone — nothing above it to divide it from. */
.footer-bottom.footer-bottom-only { border-top: 0; margin-top: 0; padding-top: 0; }

/* ----------------------------------------------------------- legal pages */

.legal-main { background: var(--surface); }
.legal { max-width: 760px; padding-top: 64px; padding-bottom: 88px; }
.legal h1 { font-size: clamp(30px, 3.5vw, 44px); margin-bottom: 8px; }
.legal .updated { font-size: 14px; color: var(--muted); margin-bottom: 32px; }
.legal h2 { font-size: 24px; margin: 36px 0 12px; }
.legal p, .legal li { font-size: 15.5px; line-height: 1.7; margin-bottom: 12px; }
.legal ul { padding-left: 22px; margin: 0 0 12px; }

/* ------------------------------------------------------------ responsive */

@media (max-width: 900px) {
  .container { padding: 0 22px; }

  .nav-burger { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 22px 22px;
    gap: 18px;
  }
  .site-header.nav-open .site-nav { display: flex; }

  .hero-inner { padding-top: 52px; padding-bottom: 36px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; width: 100%; }
  .hero-actions .btn { text-align: center; }
  .hero-actions .link-underline { text-align: center; border-bottom: 0; padding: 8px 0; }

  .section { padding: 44px 0 56px; }
  .section-alt { padding: 44px 0; }
  .flow-lg > * + * { margin-top: 28px; }

  .studio-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .contact-form .btn { align-self: stretch; text-align: center; }

  .footer-top { grid-template-columns: minmax(0, 1fr); }
  .footer-cols { grid-row: auto; grid-column: 1; gap: 48px; margin-top: 14px; }
  .footer-bottom { flex-direction: column; gap: 4px; }
}

@media (max-width: 800px) {
  .feature-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .feature-card { flex-direction: row; align-items: flex-start; padding: 0; background: transparent; border: 0; border-radius: 0; gap: 12px; flex-wrap: wrap; }
  .feature-card svg { flex-shrink: 0; margin-top: 2px; width: 22px; height: 22px; }
  .feature-card h3 { font-size: 15px; flex: 1; }
  .feature-card p { font-size: 13.5px; width: 100%; padding-left: 34px; margin: 0; }

  .product-window { display: none; }
  .agent-card { display: block; }
}