/* AgentStackOS — stylesheet
   SMB Strategy Consultants brand system.
   Font: Plus Jakarta Sans, self-hosted (see /fonts). No external font requests.
*/

/* ---------- Font faces (self-hosted) ---------- */
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/pjs-400.woff2") format("woff2");
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/pjs-500.woff2") format("woff2");
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/pjs-600.woff2") format("woff2");
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/pjs-700.woff2") format("woff2");
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../fonts/pjs-800.woff2") format("woff2");
}

/* ---------- Tokens ---------- */
:root {
  --color-primary: #13263F;
  --color-primary-deep: #0F1E33;
  --color-accent: #C9A84C;
  --color-accent-light: #E0B95E;
  --color-bg: #FFFFFF;
  --color-bg-soft: #F8F7F4;
  --color-text: #2D3748;
  --color-text-muted: #64748B;
  --color-text-on-dark: #F4F1E9;
  --color-text-on-dark-muted: #B9C2CF;
  --color-border: #E4E1D8;
  --color-border-dark: #24405F;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 64px;
  --space-2xl: 96px;

  --font-body: "Plus Jakarta Sans", "Segoe UI", Arial, sans-serif;
  --container-max: 1180px;
  --shadow-card: 0 12px 32px -18px rgba(15, 30, 51, 0.35);
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-md);
  color: var(--color-primary-deep);
}
h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
p { margin: 0 0 var(--space-md); }
ul { margin: 0 0 var(--space-md); padding-left: 1.2em; }
li { margin-bottom: var(--space-sm); }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
@media (max-width: 640px) {
  .container { padding: 0 var(--space-md); }
}

.section { padding: var(--space-2xl) 0; }
.section--soft { background: var(--color-bg-soft); }
.section--dark {
  background-color: var(--color-primary-deep);
  background-image: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
  color: var(--color-text-on-dark);
}
.section--dark-deep {
  background-color: #0A1524;
  background-image: linear-gradient(160deg, #0F1E33 0%, #0A1524 100%);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: #FFFFFF; }
.section--dark p { color: var(--color-text-on-dark-muted); }
.section--tight { padding: var(--space-xl) 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.section--light-eyebrow .eyebrow,
.eyebrow--dark { color: var(--color-accent-light); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  padding: 0.6em 1em;
  z-index: 1000;
  font-weight: 700;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.9rem var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
}
.brand-mark {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--color-primary-deep);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.15em;
  white-space: nowrap;
}
.brand-mark span.suffix { color: var(--color-accent); }
.brand-mark .tag {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5em 0.7em;
  cursor: pointer;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.main-nav__links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
  font-weight: 600;
}
.main-nav__links a {
  text-decoration: none;
  color: var(--color-text);
  padding: 0.4em 0.2em;
  border-bottom: 2px solid transparent;
}
.main-nav__links a:hover,
.main-nav__links a:focus-visible {
  color: var(--color-primary-deep);
  border-bottom-color: var(--color-accent);
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md) var(--space-lg);
    gap: var(--space-md);
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav__links {
    flex-direction: column;
    gap: var(--space-sm);
  }
  .main-nav .btn { width: 100%; text-align: center; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.6rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  line-height: 1.2;
}
.btn:focus-visible {
  outline: 3px solid var(--color-accent-light);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-deep);
}
.btn-primary:hover { background: var(--color-accent-light); transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  border-color: currentColor;
  color: var(--color-primary-deep);
}
.btn-secondary:hover { background: var(--color-primary-deep); color: #fff; }
.section--dark .btn-secondary { color: #fff; }
.section--dark .btn-secondary:hover { background: #fff; color: var(--color-primary-deep); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary-deep);
  text-decoration: underline;
  padding: 0.5rem 0.2rem;
}
.section--dark .btn-ghost { color: var(--color-text-on-dark); }
.btn-block { width: 100%; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-top: var(--space-lg);
}

/* ---------- Availability note ---------- */
.availability-note {
  display: flex;
  gap: 0.6em;
  align-items: flex-start;
  background: rgba(201, 168, 76, 0.12);
  border: 1px solid rgba(201, 168, 76, 0.45);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 0.92rem;
  color: var(--color-text);
  max-width: 640px;
  margin-top: var(--space-md);
}
.section--dark .availability-note {
  background: rgba(224, 185, 94, 0.14);
  border-color: rgba(224, 185, 94, 0.5);
  color: var(--color-text-on-dark);
}
.availability-note .icon { flex: 0 0 auto; font-size: 1.1rem; }

/* ---------- Hero ---------- */
.hero {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.hero h1 { font-size: clamp(2rem, 3.6vw, 3rem); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-2xl);
  align-items: center;
}
@media (max-width: 920px) {
  .hero__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
}
.hero h1 { color: #fff; }
.hero .lede {
  font-size: 1.15rem;
  color: var(--color-text-on-dark-muted);
  max-width: 46ch;
}
.hero .lede strong { color: #fff; }

.hero-visual {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-dark);
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-lg);
}
.flow-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.flow-step {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
}
.flow-step .num {
  flex: 0 0 auto;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}
.flow-arrow {
  text-align: center;
  color: var(--color-accent-light);
  font-size: 0.9rem;
}

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: var(--space-lg);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 920px) {
  .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(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  height: 100%;
}
.card h3 { margin-bottom: var(--space-sm); }
.card .outputs {
  margin-top: var(--space-md);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  border-top: 1px dashed var(--color-border);
  padding-top: var(--space-sm);
}
.card .outputs strong { color: var(--color-text); }

.card--flat {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  box-shadow: none;
}

.icon-tile {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary-deep);
  color: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--space-xl);
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Chips / tags ---------- */
.chip {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25em 0.7em;
  border-radius: 999px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.chip--gold {
  background: rgba(201, 168, 76, 0.14);
  border-color: rgba(201, 168, 76, 0.4);
  color: #8a6b1f;
}

/* ---------- Steps (How it works) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}
@media (max-width: 1024px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
}
.step {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  position: relative;
}
.step .step-num {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

/* ---------- Illustrative board ---------- */
.illustrative-flag {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: var(--color-primary-deep);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.4em 0.9em;
  border-radius: 999px;
  margin-bottom: var(--space-lg);
}
.illustrative-flag .dot {
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: var(--color-accent-light);
}
.board {
  background: var(--color-bg-soft);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 920px) {
  .board { grid-template-columns: 1fr; }
}
.board-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.board-item .board-step {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.4em;
}
.board-item p { margin: 0; font-size: 0.92rem; color: var(--color-text-muted); }

/* ---------- Agency model list ---------- */
.model-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 640px) { .model-list { grid-template-columns: 1fr; } }
.model-list li {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-md);
  margin: 0;
}
.model-list strong { color: #fff; display: block; margin-bottom: 0.25em; }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}
.faq-item summary {
  font-weight: 700;
  font-size: 1.02rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  color: var(--color-primary-deep);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { font-size: 1.4rem; color: var(--color-accent); transition: transform 0.15s ease; }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item p { margin-top: var(--space-sm); color: var(--color-text-muted); }

/* ---------- Setup section ---------- */
.setup-panel {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card);
}
.setup-status {
  display: flex;
  align-items: center;
  gap: 0.6em;
  font-weight: 700;
  color: #8a6b1f;
  background: rgba(201, 168, 76, 0.14);
  border: 1px solid rgba(201, 168, 76, 0.4);
  border-radius: var(--radius-sm);
  padding: 0.7em 1em;
  margin-bottom: var(--space-lg);
  font-size: 0.95rem;
}
.setup-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
@media (max-width: 780px) {
  .setup-options { grid-template-columns: 1fr; }
}
.setup-option {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.setup-option .chip { align-self: flex-start; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-deep);
  color: var(--color-text-on-dark-muted);
  padding: var(--space-xl) 0 var(--space-lg);
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.footer-brand .brand-mark { color: #fff; }
.footer-brand .tag { color: var(--color-text-on-dark-muted); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}
.footer-nav a { color: var(--color-text-on-dark-muted); text-decoration: none; font-size: 0.92rem; }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: rgba(244,241,233,0.55);
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xl) 0;
}
.note-sm {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- Additional utility classes (replace inline styles for CSP) ---------- */
.text-white { color: #fff; }
.text-on-dark { color: var(--color-text-on-dark-muted); }
.text-on-dark-faint { color: rgba(244, 241, 233, 0.55); }
.text-primary-deep { color: var(--color-primary-deep); }
.fw-bold { font-weight: 700; }
.underline { text-decoration: underline; }
.mt-0 { margin-top: 0; }
.m-0 { margin: 0; }
.justify-center { justify-content: center; }
.max-w-640 { max-width: 640px; margin: 0 auto var(--space-md); }
.max-w-560 { max-width: 560px; margin: 0 auto var(--space-lg); }
.callout-line { font-weight: 700; font-size: 1.1rem; }
.card--on-dark {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}
.card--on-dark-strong {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}
.card--centered-dark {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: var(--color-primary-deep);
  border: none;
}
.card--centered-dark p {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0;
}
.notfound-hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.mt-tag { margin-top: 0.4em; }
.text-sm { font-size: 0.9rem; }