/* ============================================================
   P1 — tryp1ai.com — Full-site CSS
   Brand prefix: p1ai
   Palette: dark CAD-viewport (#0A0D12) + electric blue (#2E7CF6)
   Fonts: Sora 200/800 + IBM Plex Sans 400/500 + IBM Plex Mono 400
   ============================================================ */

/* ---- 0. Custom properties ---- */
:root {
  --p1ai-nav-h: 64px;

  /* Dark surface */
  --p1ai-dark-bg:       #0A0D12;
  --p1ai-dark-bg2:      #0F1520;
  --p1ai-dark-bg3:      #141B2B;
  --p1ai-dark-text:     #E8EBF0;
  --p1ai-dark-muted:    #8A98B0;
  --p1ai-dark-border:   #1E2A3E;

  /* Light surface */
  --p1ai-light-bg:      #F4F5F7;
  --p1ai-white:         #FFFFFF;
  --p1ai-light-text:    #1A1F2E;
  --p1ai-light-muted:   #5A6478;
  --p1ai-light-border:  #DDE1E9;

  /* Accent */
  --p1ai-blue:          #2E7CF6;
  --p1ai-blue-text:     #1A60D4;
  --p1ai-amber:         #E07B2A;
  --p1ai-green:         #34B871;

  /* Layout */
  --p1ai-max-w:         1200px;
  --p1ai-prose-w:       720px;
  --p1ai-section-py:    80px;
  --p1ai-section-py-sm: 48px;
}

/* ---- 1. Reset + base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background: #0A0D12;
  color: var(--p1ai-dark-text);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }

/* ---- 2. Typography scale ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Sora', system-ui, -apple-system, sans-serif;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.625rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { font-size: 1rem; line-height: 1.7; }

.p1ai-eyebrow {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--p1ai-blue);
  margin-bottom: 1rem;
}

.p1ai-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  font-weight: 400;
}

code, pre, .p1ai-mono {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
}

/* ---- 3. Layout container ---- */
.p1ai-container {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-container--narrow {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---- 4. Section primitives ---- */
.p1ai-section {
  padding-block: var(--p1ai-section-py);
}

.p1ai-section--dark {
  background: linear-gradient(160deg, #243347 0%, #0A0D12 45%, #1C2C42 100%);
  color: var(--p1ai-dark-text);
}

.p1ai-section--dark-alt {
  background: linear-gradient(180deg, #263650 0%, #162035 50%, #0A0D12 100%);
  color: var(--p1ai-dark-text);
}

.p1ai-section--light {
  background: var(--p1ai-light-bg);
  color: var(--p1ai-light-text);
}

.p1ai-section--white {
  background: var(--p1ai-white);
  color: var(--p1ai-light-text);
}

.p1ai-section--dark .p1ai-eyebrow,
.p1ai-section--dark-alt .p1ai-eyebrow { color: var(--p1ai-blue); }
.p1ai-section--light .p1ai-eyebrow,
.p1ai-section--white .p1ai-eyebrow { color: var(--p1ai-blue-text); }

/* ---- 5. Nav ---- */
.p1ai-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--p1ai-nav-h);
  background: linear-gradient(180deg, #1C2A3E 0%, #0A0D12 100%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.p1ai-nav--scrolled {
  border-bottom-color: var(--p1ai-dark-border);
}

.p1ai-nav__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.p1ai-nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.p1ai-nav__logo img {
  height: 28px;
  width: auto;
}

.p1ai-nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.p1ai-nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--p1ai-dark-muted);
  padding: 8px 12px;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.p1ai-nav__links a:hover {
  color: var(--p1ai-dark-text);
  background: rgba(255, 255, 255, 0.06);
}

.p1ai-nav__links a.p1ai-nav__active {
  color: var(--p1ai-dark-text);
}

/* Nav CTA (Sign In ghost-on-dark) */
.p1ai-nav__cta {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--p1ai-dark-text) !important;
  padding: 7px 16px !important;
  border: 1px solid var(--p1ai-dark-border) !important;
  border-radius: 6px !important;
  background: transparent !important;
  transition: border-color 0.2s ease, background 0.2s ease !important;
}

.p1ai-nav__cta:hover {
  border-color: rgba(46, 124, 246, 0.5) !important;
  background: rgba(46, 124, 246, 0.08) !important;
  color: var(--p1ai-dark-text) !important;
}

/* Hamburger */
.p1ai-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.p1ai-nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--p1ai-dark-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.p1ai-nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.p1ai-nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.p1ai-nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.p1ai-nav__mobile {
  display: none;
  position: fixed;
  top: var(--p1ai-nav-h);
  left: 0;
  right: 0;
  background: linear-gradient(180deg, #1C2A3E 0%, #0A0D12 100%);
  border-bottom: 1px solid var(--p1ai-dark-border);
  padding: 16px 24px 24px;
  z-index: 999;
}

.p1ai-nav__mobile.p1ai-nav__mobile--open {
  display: block;
}

.p1ai-nav__mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.p1ai-nav__mobile ul a {
  display: block;
  padding: 12px 8px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--p1ai-dark-muted);
  border-bottom: 1px solid var(--p1ai-dark-border);
  transition: color 0.2s;
}

.p1ai-nav__mobile ul a:last-child { border-bottom: none; }
.p1ai-nav__mobile ul a:hover { color: var(--p1ai-dark-text); }

/* ---- 6. Buttons ---- */
.p1ai-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.p1ai-btn--primary {
  background: var(--p1ai-blue-text);
  color: #FFFFFF;
  border-color: var(--p1ai-blue-text);
}

.p1ai-btn--primary:hover {
  background: #1452ba;
  border-color: #1452ba;
  color: #FFFFFF;
}

.p1ai-btn--ghost-on-dark {
  background: transparent;
  color: var(--p1ai-dark-text);
  border-color: var(--p1ai-dark-border);
}

.p1ai-btn--ghost-on-dark:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(46, 124, 246, 0.4);
  color: var(--p1ai-dark-text);
}

.p1ai-btn--ghost-on-light {
  background: transparent;
  color: var(--p1ai-light-text);
  border-color: var(--p1ai-light-border);
}

.p1ai-btn--ghost-on-light:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: #b0b8c8;
  color: var(--p1ai-light-text);
}

.p1ai-btn--outline-dark {
  background: transparent;
  color: var(--p1ai-light-text);
  border-color: var(--p1ai-light-text);
}

.p1ai-btn--outline-dark:hover {
  background: var(--p1ai-light-text);
  color: var(--p1ai-white);
}

.p1ai-btn--sm {
  font-size: 0.875rem;
  padding: 8px 18px;
}

.p1ai-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---- 7. Main page clearance ---- */
.p1ai-main {
  padding-top: var(--p1ai-nav-h);
}

/* Auth main — no nav clearance needed (no nav on auth) */
.p1ai-auth-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse 70% 70% at 50% 40%, #1D2F4A 0%, #0A0D12 70%);
  padding: 24px;
}

/* ---- 8. Hero — index.html single-column with bg image ---- */
.p1ai-hero {
  background-image:
    linear-gradient(105deg, rgba(10,13,18,0.88) 0%, rgba(10,13,18,0.72) 50%, rgba(15,21,32,0.55) 100%),
    url('../images/hero-bg.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: calc(100vh - var(--p1ai-nav-h));
  display: flex;
  align-items: center;
  padding-block: var(--p1ai-section-py);
}

.p1ai-hero__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
  display: block;
}

.p1ai-hero__text {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 760px;
}

.p1ai-hero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(2.125rem, 5vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--p1ai-dark-text);
}

.p1ai-hero__sub {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--p1ai-dark-muted);
  max-width: 600px;
}

.p1ai-hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.p1ai-hero__visual img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--p1ai-dark-border);
}

/* ---- 9. Sub-page hero ---- */
.p1ai-subhero {
  background: linear-gradient(135deg, #1A2840 0%, #0C1018 40%, #182235 100%);
  padding-block: 72px 56px;
  text-align: center;
}

.p1ai-subhero__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-subhero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.875rem);
  color: var(--p1ai-dark-text);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.p1ai-subhero__sub {
  font-size: 1.0625rem;
  color: var(--p1ai-dark-muted);
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.7;
}

.p1ai-subhero__img {
  margin-top: 40px;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--p1ai-dark-border);
}

/* Light sub-page hero variant */
.p1ai-subhero--light {
  background: var(--p1ai-light-bg);
}

.p1ai-subhero--light .p1ai-subhero__h1 { color: var(--p1ai-light-text); }
.p1ai-subhero--light .p1ai-subhero__sub { color: var(--p1ai-light-muted); }

/* Platform page subhero — bg image with scrim */
.p1ai-subhero--platform {
  background-image:
    linear-gradient(180deg, rgba(10,13,18,0.80) 0%, rgba(10,13,18,0.55) 40%, rgba(10,13,18,0.78) 100%),
    url('../images/platform-diagram.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding-block: 96px 80px;
}

.p1ai-subhero--platform .p1ai-subhero__inner {
  max-width: 760px;
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-subhero--platform .p1ai-subhero__h1 { color: #FFFFFF; }
.p1ai-subhero--platform .p1ai-subhero__sub { color: #C8D0DE; max-width: 600px; margin-inline: auto; }

/* Use-cases page subhero — gradient bg, no image */
.p1ai-subhero--usecases {
  background: radial-gradient(ellipse at 30% 60%, #2A3A56 0%, #0F1824 45%, #0A0D12 100%);
  padding-block: 96px 80px;
}

.p1ai-subhero--usecases .p1ai-subhero__inner {
  max-width: 760px;
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-subhero--usecases .p1ai-subhero__h1 { color: #FFFFFF; }
.p1ai-subhero--usecases .p1ai-subhero__sub { color: #C8D0DE; max-width: 600px; margin-inline: auto; }

/* ---- 10. Section headline pattern ---- */
.p1ai-section-head {
  text-align: center;
  margin-bottom: 56px;
}

.p1ai-section-head--left {
  text-align: left;
  margin-bottom: 40px;
}

.p1ai-section-head h2 {
  color: inherit;
  margin-bottom: 12px;
}

.p1ai-section-head p {
  font-size: 1.0625rem;
  color: var(--p1ai-dark-muted);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

.p1ai-section--light .p1ai-section-head p,
.p1ai-section--white .p1ai-section-head p {
  color: var(--p1ai-light-muted);
}

.p1ai-section-head--left p { margin-inline: 0; }

/* ---- 11. Stats / problem section ---- */
.p1ai-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.p1ai-stat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  background: linear-gradient(135deg, #243450 0%, #182238 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 8px;
}

.p1ai-stat__number {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 200;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--p1ai-blue);
  line-height: 1;
  letter-spacing: -0.04em;
}

.p1ai-stat__label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--p1ai-dark-text);
  line-height: 1.4;
}

.p1ai-stat__source {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--p1ai-dark-muted);
  margin-top: auto;
}

/* ---- 12. Workflow inline mock ---- */
.p1ai-workflow-mock {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  background: linear-gradient(135deg, #223048 0%, #111928 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 40px;
  max-width: 960px;
  margin-inline: auto;
  min-height: 280px;
}

.p1ai-workflow-step {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.p1ai-workflow-step__header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.p1ai-workflow-step__num {
  width: 24px;
  height: 24px;
  background: var(--p1ai-blue-text);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  font-weight: 400;
  flex-shrink: 0;
}

.p1ai-workflow-step__title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--p1ai-dark-text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.p1ai-workflow-step__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Step connector arrow */
.p1ai-workflow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  color: var(--p1ai-blue);
  font-size: 1.25rem;
}

/* Monospace key-value rows */
.p1ai-kv-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  padding: 4px 0;
  border-bottom: 1px solid rgba(30, 42, 62, 0.7);
}

.p1ai-kv-row:last-child { border-bottom: none; }

.p1ai-kv-key { color: var(--p1ai-dark-muted); white-space: nowrap; }
.p1ai-kv-val { color: var(--p1ai-blue); text-align: right; white-space: nowrap; }

/* Generate step counter */
.p1ai-gen-counter {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.75rem;
  color: var(--p1ai-green);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 8px;
}

.p1ai-gen-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  color: var(--p1ai-dark-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.p1ai-gen-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.p1ai-gen-check {
  width: 18px;
  height: 18px;
  background: rgba(52, 184, 113, 0.15);
  border: 1px solid rgba(52, 184, 113, 0.35);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--p1ai-green);
  font-size: 0.625rem;
}

/* Review step candidate rows */
.p1ai-candidate-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--p1ai-dark-border);
}

.p1ai-candidate-row:last-child { border-bottom: none; }

.p1ai-candidate-rank {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  color: var(--p1ai-dark-muted);
  min-width: 16px;
}

.p1ai-candidate-bar {
  flex: 1;
  height: 5px;
  background: var(--p1ai-dark-border);
  border-radius: 3px;
  overflow: hidden;
}

.p1ai-candidate-bar__fill {
  height: 100%;
  border-radius: 3px;
  background: var(--p1ai-green);
}

.p1ai-candidate-score {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  color: var(--p1ai-dark-muted);
  min-width: 32px;
  text-align: right;
}

/* ---- 13. Physics engine mock ---- */
.p1ai-engine-mock {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0;
  background: linear-gradient(160deg, #253A56 0%, #0A0D12 60%, #1F2E44 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 100%;
  margin-top: 32px;
  min-height: 320px;
}

.p1ai-engine-divider {
  background: var(--p1ai-blue);
  opacity: 0.4;
  align-self: stretch;
}

.p1ai-engine-panel {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.p1ai-engine-panel__title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--p1ai-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--p1ai-dark-border);
}

.p1ai-engine-kv-group {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.p1ai-engine-group-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.625rem;
  color: var(--p1ai-dark-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  margin-top: 8px;
}

.p1ai-engine-kv {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  padding: 5px 0;
  border-bottom: 1px solid rgba(30, 42, 62, 0.5);
}

.p1ai-engine-kv:last-child { border-bottom: none; }

.p1ai-engine-kv__k { color: var(--p1ai-dark-muted); }
.p1ai-engine-kv__v { color: var(--p1ai-dark-text); white-space: nowrap; }

/* Validation candidates */
.p1ai-val-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--p1ai-dark-border);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--p1ai-dark-muted);
}

.p1ai-val-row:last-child { border-bottom: none; }

.p1ai-val-id { min-width: 48px; }

.p1ai-val-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.p1ai-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.p1ai-dot--green  { background: var(--p1ai-green); }
.p1ai-dot--amber  { background: var(--p1ai-amber); }
.p1ai-dot--red    { background: #e04040; }

/* ---- 14. Testimonials / proof ---- */
.p1ai-testimonials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.p1ai-testimonial {
  background: var(--p1ai-white);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 10px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.p1ai-testimonial__quote {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--p1ai-light-text);
  font-style: normal;
  flex: 1;
}

.p1ai-testimonial__quote::before { content: "\201C"; }
.p1ai-testimonial__quote::after  { content: "\201D"; }

.p1ai-testimonial__attr {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 16px;
  border-top: 1px solid var(--p1ai-light-border);
}

.p1ai-testimonial__name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--p1ai-light-text);
}

.p1ai-testimonial__role {
  font-size: 0.8125rem;
  color: var(--p1ai-light-muted);
}

/* ---- 15. CTA section ---- */
.p1ai-cta-section {
  background: radial-gradient(ellipse 80% 60% at 50% 0%, #2A4A78 0%, #152035 40%, #0A0D12 100%);
  padding-block: var(--p1ai-section-py);
  text-align: center;
}

.p1ai-cta-section h2 {
  color: var(--p1ai-dark-text);
  margin-bottom: 16px;
  max-width: 640px;
  margin-inline: auto;
}

.p1ai-cta-section p {
  color: var(--p1ai-dark-muted);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: 32px;
}

/* ---- 16. Feature grid 2x2 ---- */
.p1ai-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.p1ai-feature-card {
  background: linear-gradient(145deg, #243450 0%, #182238 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 8px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s ease;
}

.p1ai-feature-card:hover {
  border-color: rgba(46, 124, 246, 0.35);
}

.p1ai-feature-card__icon {
  width: 40px;
  height: 40px;
  background: rgba(46, 124, 246, 0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--p1ai-blue);
  font-size: 1.125rem;
  flex-shrink: 0;
}

.p1ai-feature-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--p1ai-dark-text);
}

.p1ai-feature-card__body {
  font-size: 0.9375rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.65;
}

/* ---- 17. Integration / formats list ---- */
.p1ai-integration-section {
  padding-block: var(--p1ai-section-py);
}

.p1ai-format-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.p1ai-format-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  color: var(--p1ai-light-muted);
  background: var(--p1ai-light-bg);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 4px;
  padding: 6px 12px;
}

/* ---- 18. Use cases sections ---- */
.p1ai-usecase-section {
  padding-block: var(--p1ai-section-py);
}

.p1ai-usecase__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.p1ai-usecase__inner--flip {
  direction: rtl;
}

.p1ai-usecase__inner--flip > * {
  direction: ltr;
}

.p1ai-usecase__text h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.p1ai-usecase__text p {
  color: var(--p1ai-dark-muted);
  margin-bottom: 12px;
  font-size: 0.9375rem;
}

.p1ai-section--light .p1ai-usecase__text p { color: var(--p1ai-light-muted); }
.p1ai-section--light .p1ai-usecase__text h3 { color: var(--p1ai-light-text); }

.p1ai-usecase__badge {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--p1ai-blue);
  background: rgba(46, 124, 246, 0.1);
  border: 1px solid rgba(46, 124, 246, 0.2);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 16px;
}

.p1ai-usecase__visual {
  background: linear-gradient(145deg, #223048 0%, #111928 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.p1ai-usecase__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- 19. Pricing tiers ---- */
.p1ai-tiers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.p1ai-tier-card {
  background: var(--p1ai-white);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 10px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.p1ai-tier-card--highlight {
  background: linear-gradient(145deg, #1E2E58 0%, #0F1928 100%);
  border-color: var(--p1ai-blue);
  position: relative;
}

.p1ai-tier-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--p1ai-blue-text);
  color: #fff;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.p1ai-tier-card__name {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--p1ai-light-text);
}

.p1ai-tier-card--highlight .p1ai-tier-card__name { color: var(--p1ai-dark-text); }

.p1ai-tier-card__price {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 2.75rem;
  line-height: 1.05;
}

.p1ai-tier-card__price span {
  font-size: 1rem;
  font-weight: 500;
}

.p1ai-tier-price-label {
  font-weight: 500;
  font-size: 0.8125rem;
  color: var(--p1ai-light-text);
  line-height: 1.4;
}

.p1ai-tier-card--highlight .p1ai-tier-price-label { color: var(--p1ai-dark-text); }

.p1ai-tier-seats {
  font-size: 0.8125rem;
  color: var(--p1ai-light-muted);
}

.p1ai-tier-card--highlight .p1ai-tier-seats { color: var(--p1ai-dark-muted); }

.p1ai-tier-descriptor {
  font-size: 0.875rem;
  color: var(--p1ai-light-muted);
  line-height: 1.55;
}

.p1ai-tier-card--highlight .p1ai-tier-descriptor { color: var(--p1ai-dark-muted); }

.p1ai-tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.p1ai-tier-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--p1ai-light-text);
  line-height: 1.5;
}

.p1ai-tier-card--highlight .p1ai-tier-features li { color: var(--p1ai-dark-text); }

.p1ai-tier-features li .fa-check,
.p1ai-tier-features li .fa-minus {
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 0.875rem;
}
.p1ai-tier-features li .fa-check { color: var(--p1ai-green); }
.p1ai-tier-card--highlight .p1ai-tier-features li .fa-check { color: var(--p1ai-green); }

/* ---- 20. FAQ accordion ---- */
.p1ai-faq {
  max-width: 800px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.p1ai-faq__item {
  background: var(--p1ai-white);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 8px;
  overflow: hidden;
}

.p1ai-faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--p1ai-light-text);
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.p1ai-faq__question:hover {
  background: rgba(0, 0, 0, 0.03);
}

.p1ai-faq__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--p1ai-light-muted);
  transition: transform 0.25s ease;
}

.p1ai-faq__item--open .p1ai-faq__icon {
  transform: rotate(45deg);
  color: var(--p1ai-blue-text);
}

.p1ai-faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.p1ai-faq__item--open .p1ai-faq__answer {
  max-height: 400px;
}

.p1ai-faq__answer-inner {
  padding: 0 20px 18px;
  font-size: 0.9375rem;
  color: var(--p1ai-light-muted);
  line-height: 1.7;
  border-top: 1px solid var(--p1ai-light-border);
  padding-top: 14px;
}

/* ---- 21. Team section ---- */
.p1ai-team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.p1ai-team-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  background: linear-gradient(145deg, #223048 0%, #111928 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 10px;
}

.p1ai-team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--p1ai-dark-border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--p1ai-dark-bg2);
}

.p1ai-team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.p1ai-team-initials {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--p1ai-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.p1ai-team-card__name {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--p1ai-dark-text);
  margin-bottom: 2px;
}

.p1ai-team-card__role {
  font-size: 0.8125rem;
  color: #4A8BF7;
  font-weight: 500;
  margin-bottom: 4px;
}

.p1ai-team-card__bio {
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.65;
}

/* ---- 22. Mission / about hero ---- */
.p1ai-about-hero {
  background: linear-gradient(150deg, #1E2E48 0%, #0A0D12 55%, #192538 100%);
  padding-block: 72px 56px;
}

.p1ai-about-hero__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-about-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  color: var(--p1ai-dark-text);
  max-width: 720px;
  margin-bottom: 20px;
}

.p1ai-about-hero p {
  color: var(--p1ai-dark-muted);
  font-size: 1.0625rem;
  max-width: 600px;
  line-height: 1.7;
}

/* Mission section */
.p1ai-mission__body {
  max-width: 680px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.p1ai-mission__body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--p1ai-dark-muted);
}

.p1ai-mission__angel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--p1ai-dark-muted);
  background: rgba(30, 42, 62, 0.6);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 4px;
  padding: 6px 12px;
  margin-top: 4px;
}

/* Location / contact two-col */
.p1ai-location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.p1ai-contact-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.p1ai-contact-block h3 {
  font-size: 1.25rem;
  color: var(--p1ai-light-text);
  margin-bottom: 8px;
}

.p1ai-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--p1ai-light-muted);
  line-height: 1.5;
}

.p1ai-contact-item i {
  color: var(--p1ai-blue-text);
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.p1ai-contact-item a {
  color: var(--p1ai-blue-text);
  text-decoration: none;
}

.p1ai-contact-item a:hover { text-decoration: underline; }

.p1ai-location-note {
  padding-left: 16px;
}

.p1ai-location-note h3 {
  font-size: 1.125rem;
  color: var(--p1ai-light-text);
  margin-bottom: 10px;
}

.p1ai-location-note p {
  font-size: 0.9375rem;
  color: var(--p1ai-light-muted);
  line-height: 1.65;
}

/* ---- 23. Design Log / blog ---- */
.p1ai-article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.p1ai-article-card {
  background: var(--p1ai-white);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.p1ai-article-card:hover {
  border-color: #b0b8c8;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.07);
}

.p1ai-article-card__cover {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--p1ai-light-bg);
}

.p1ai-article-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.p1ai-article-card:hover .p1ai-article-card__cover img {
  transform: scale(1.03);
}

.p1ai-article-card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.p1ai-article-card__tag {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--p1ai-blue-text);
  background: rgba(26, 96, 212, 0.08);
  border-radius: 3px;
  padding: 3px 8px;
}

.p1ai-article-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--p1ai-light-text);
  line-height: 1.4;
}

.p1ai-article-card__excerpt {
  font-size: 0.875rem;
  color: var(--p1ai-light-muted);
  line-height: 1.6;
  flex: 1;
}

.p1ai-article-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--p1ai-light-border);
  margin-top: auto;
}

.p1ai-article-card__date {
  font-size: 0.8125rem;
  color: var(--p1ai-light-muted);
}

.p1ai-article-card__read {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--p1ai-blue-text);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}

.p1ai-article-card:hover .p1ai-article-card__read { gap: 7px; }

/* Featured article card (first, full-width) */
.p1ai-article-card--featured {
  grid-column: 1 / -1;
}

.p1ai-article-card--featured .p1ai-article-card__link {
  display: flex;
  flex-direction: row;
  width: 100%;
  height: 100%;
}

.p1ai-article-card--featured .p1ai-article-card__cover {
  width: 45%;
  aspect-ratio: auto;
  flex-shrink: 0;
}

.p1ai-article-card--featured .p1ai-article-card__body {
  padding: 28px 32px;
}

.p1ai-article-card--featured .p1ai-article-card__title {
  font-size: 1.375rem;
}

.p1ai-article-card--featured .p1ai-article-card__excerpt {
  font-size: 0.9375rem;
}

/* ---- 24. Article page (design-log articles) ---- */
.p1ai-article-hero {
  background: linear-gradient(170deg, #253448 0%, #0A0D12 60%, #1C2C42 100%);
  padding-block: 64px 48px;
}

.p1ai-article-hero__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  margin-bottom: 24px;
  transition: color 0.2s ease;
  text-decoration: none;
}

.p1ai-article-back:hover { color: var(--p1ai-dark-text); }
.p1ai-article-back i { font-size: 0.75rem; }

.p1ai-article-hero__tag {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--p1ai-blue);
  background: rgba(46, 124, 246, 0.1);
  border-radius: 3px;
  padding: 4px 10px;
  margin-bottom: 16px;
}

.p1ai-article-hero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  color: var(--p1ai-dark-text);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 800px;
  margin-bottom: 16px;
}

.p1ai-article-hero__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  margin-top: 16px;
}

/* Article body (light section) */
.p1ai-article-body {
  background: var(--p1ai-white);
  padding-block: 48px 80px;
}

.p1ai-article-body__inner {
  max-width: var(--p1ai-prose-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-article-cover {
  max-width: var(--p1ai-prose-w);
  margin-inline: auto;
  padding-inline: 24px;
  margin-bottom: 40px;
}

.p1ai-article-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 6px;
  aspect-ratio: 16/9;
}

.p1ai-prose {
  color: var(--p1ai-light-text);
  font-size: 1rem;
  line-height: 1.8;
}

.p1ai-prose h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--p1ai-light-text);
}

.p1ai-prose h3 {
  font-size: 1.1875rem;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--p1ai-light-text);
}

.p1ai-prose p {
  margin-bottom: 20px;
  color: var(--p1ai-light-text);
}

.p1ai-prose ul, .p1ai-prose ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.p1ai-prose ul { list-style: disc; }
.p1ai-prose ol { list-style: decimal; }

.p1ai-prose li {
  margin-bottom: 6px;
  color: var(--p1ai-light-text);
}

.p1ai-prose a { color: var(--p1ai-blue-text); text-decoration: underline; }

.p1ai-prose code {
  background: var(--p1ai-light-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.875em;
}

.p1ai-prose pre {
  background: var(--p1ai-dark-bg2);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 6px;
  padding: 16px 20px;
  overflow-x: auto;
  margin-bottom: 20px;
}

.p1ai-prose pre code {
  background: none;
  color: var(--p1ai-dark-text);
  font-size: 0.875rem;
  padding: 0;
}

/* Article CTA */
.p1ai-article-cta {
  margin-top: 48px;
  padding: 24px;
  background: var(--p1ai-light-bg);
  border: 1px solid var(--p1ai-light-border);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.p1ai-article-cta__text {
  font-size: 0.9375rem;
  color: var(--p1ai-light-text);
  font-weight: 500;
}

/* Related articles */
.p1ai-article-related {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--p1ai-light-border);
}

.p1ai-article-related h3 {
  font-size: 1.125rem;
  color: var(--p1ai-light-text);
  margin-bottom: 20px;
}

.p1ai-related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.p1ai-related-card {
  padding: 16px;
  border: 1px solid var(--p1ai-light-border);
  border-radius: 6px;
  transition: border-color 0.2s ease;
}

.p1ai-related-card:hover { border-color: #b0b8c8; }

.p1ai-related-card__tag {
  font-size: 0.6875rem;
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--p1ai-blue-text);
  margin-bottom: 6px;
}

.p1ai-related-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--p1ai-light-text);
  line-height: 1.4;
}

/* ---- 25. Auth card (login.html) ---- */
.p1ai-auth-card {
  width: 100%;
  max-width: 440px;
  background: linear-gradient(160deg, #1E2C42 0%, #111928 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 12px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.p1ai-auth-logo {
  text-align: center;
}

.p1ai-auth-logo img {
  height: 32px;
  width: auto;
  margin-inline: auto;
}

.p1ai-auth-heading {
  text-align: center;
}

.p1ai-auth-heading h1 {
  font-size: 1.5rem;
  color: var(--p1ai-dark-text);
  margin-bottom: 6px;
}

.p1ai-auth-heading p {
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
}

/* Auth form */
.p1ai-auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.p1ai-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.p1ai-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--p1ai-dark-muted);
}

.p1ai-field__input {
  width: 100%;
  padding: 10px 14px;
  background: var(--p1ai-dark-bg3);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 6px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9375rem;
  color: var(--p1ai-dark-text);
  outline: none;
  transition: border-color 0.2s ease;
}

.p1ai-field__input:focus {
  border-color: var(--p1ai-blue);
  box-shadow: 0 0 0 3px rgba(46, 124, 246, 0.12);
}

.p1ai-field__input::placeholder { color: var(--p1ai-dark-muted); opacity: 0.6; }

.p1ai-auth-submit {
  width: 100%;
  padding: 12px;
  background: var(--p1ai-blue-text);
  color: #fff;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease;
  margin-top: 4px;
}

.p1ai-auth-submit:hover { background: #1452ba; }

/* Auth confirmation state (JS toggles this) */
.p1ai-auth-confirm {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.p1ai-auth-confirm--visible {
  display: block;
}

.p1ai-auth-confirm__msg {
  font-size: 0.9375rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.6;
}

/* Auth error message */
.p1ai-auth-error {
  font-size: 0.875rem;
  color: #e04040;
  background: rgba(224, 64, 64, 0.08);
  border: 1px solid rgba(224, 64, 64, 0.2);
  border-radius: 4px;
  padding: 10px 14px;
  display: none;
}

.p1ai-auth-error--visible { display: block; }

/* Auth helper links */
.p1ai-auth-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.p1ai-auth-links a {
  font-size: 0.8125rem;
  color: var(--p1ai-dark-muted);
  transition: color 0.2s;
}

.p1ai-auth-links a:hover { color: var(--p1ai-blue); }

/* Card footer with privacy/terms */
.p1ai-auth-card-footer {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--p1ai-dark-border);
}

.p1ai-auth-card-footer a {
  font-size: 0.75rem;
  color: var(--p1ai-dark-muted);
  transition: color 0.2s;
}

.p1ai-auth-card-footer a:hover { color: var(--p1ai-dark-text); }

/* ---- 26. 404 page ---- */
.p1ai-404-section {
  background: radial-gradient(ellipse 60% 60% at 50% 30%, #1E3050 0%, #0A0D12 65%);
  min-height: calc(100vh - var(--p1ai-nav-h));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-inline: 24px;
}

.p1ai-404-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.p1ai-404-number {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 200;
  font-size: clamp(6rem, 15vw, 10rem);
  color: var(--p1ai-blue);
  line-height: 1;
  letter-spacing: -0.05em;
}

.p1ai-404-inner h1 {
  font-size: clamp(1.25rem, 3vw, 1.875rem);
  color: var(--p1ai-dark-text);
}

.p1ai-404-inner p {
  color: var(--p1ai-dark-muted);
  max-width: 420px;
  font-size: 1rem;
}

/* ---- 27. Legal content ---- */
.p1ai-legal-hero {
  background: var(--p1ai-light-bg);
  padding-block: 56px 40px;
}

.p1ai-legal-hero__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-legal-hero h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  color: var(--p1ai-light-text);
  margin-bottom: 8px;
}

.p1ai-legal-hero p {
  font-size: 0.9375rem;
  color: var(--p1ai-light-muted);
}

.p1ai-legal-content {
  background: var(--p1ai-white);
  padding-block: 48px 80px;
}

.p1ai-legal-content__inner {
  max-width: var(--p1ai-prose-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-legal-prose {
  color: var(--p1ai-light-text);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.p1ai-legal-prose h2 {
  font-size: 1.25rem;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--p1ai-light-text);
}

.p1ai-legal-prose h3 {
  font-size: 1rem;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--p1ai-light-text);
}

.p1ai-legal-prose p { margin-bottom: 16px; }

.p1ai-legal-prose ul {
  margin-bottom: 16px;
  padding-left: 24px;
  list-style: disc;
}

.p1ai-legal-prose li { margin-bottom: 6px; }

.p1ai-legal-prose a { color: var(--p1ai-blue-text); text-decoration: underline; }

/* ---- 28. Footer ---- */
.p1ai-footer {
  background: linear-gradient(180deg, #111928 0%, #07090D 100%);
  border-top: 1px solid var(--p1ai-dark-border);
  padding-block: 56px 32px;
}

.p1ai-footer__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.p1ai-footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.p1ai-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.p1ai-footer__logo img {
  height: 28px;
  width: auto;
}

.p1ai-footer__tagline {
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.6;
  max-width: 280px;
}

.p1ai-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.p1ai-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.4;
}

.p1ai-footer__contact-item i {
  color: var(--p1ai-blue);
  font-size: 0.75rem;
  width: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}

.p1ai-footer__contact-item a {
  color: var(--p1ai-dark-muted);
  transition: color 0.2s;
}

.p1ai-footer__contact-item a:hover { color: var(--p1ai-blue); }

.p1ai-footer__col {
  display: flex;
  flex-direction: column;
}

.p1ai-footer__col-heading {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--p1ai-dark-text);
  margin-bottom: 16px;
}

.p1ai-footer__col-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.p1ai-footer__col-links a {
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  transition: color 0.2s ease;
}

.p1ai-footer__col-links a:hover { color: var(--p1ai-dark-text); }

.p1ai-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--p1ai-dark-border);
}

.p1ai-footer__copy {
  font-size: 0.8125rem;
  color: var(--p1ai-dark-muted);
}

.p1ai-footer__legal-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.p1ai-footer__legal-links a {
  font-size: 0.8125rem;
  color: var(--p1ai-dark-muted);
  transition: color 0.2s;
}

.p1ai-footer__legal-links a:hover { color: var(--p1ai-dark-text); }

/* ---- 29. Cookie banner ---- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: linear-gradient(180deg, #1C2A3E 0%, #111928 100%);
  border-top: 1px solid var(--p1ai-dark-border);
  padding: 16px 24px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner--visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  max-width: var(--p1ai-max-w);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-banner__text {
  font-size: 0.875rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.5;
  flex: 1;
}

.cookie-banner__text a {
  color: var(--p1ai-blue);
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-shrink: 0;
}

.cookie-banner__btn {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.cookie-banner__btn--primary {
  background: var(--p1ai-blue-text);
  color: #FFFFFF;
  border-color: var(--p1ai-blue-text);
}

.cookie-banner__btn--primary:hover {
  background: #1452ba;
  border-color: #1452ba;
  color: #FFFFFF;
}

.cookie-banner__btn--secondary {
  background: transparent;
  color: var(--p1ai-dark-muted);
  border-color: var(--p1ai-dark-border);
}

.cookie-banner__btn--secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--p1ai-dark-text);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ---- 30. Fade-in animation utility ---- */
.p1ai-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.p1ai-fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- 31. Info panel / two-col text ---- */
.p1ai-two-col-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.p1ai-info-panel {
  background: linear-gradient(145deg, #243450 0%, #182238 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 8px;
  padding: 28px;
}

.p1ai-info-panel h3 {
  font-size: 1.125rem;
  color: var(--p1ai-dark-text);
  margin-bottom: 12px;
}

.p1ai-info-panel p {
  font-size: 0.9375rem;
  color: var(--p1ai-dark-muted);
  line-height: 1.65;
}

/* ---- 32. Page theme body classes ---- */
.p1ai-page--dark-top body,
body.p1ai-page--dark-top { background: var(--p1ai-dark-bg); }

.p1ai-page--light-top body,
body.p1ai-page--light-top { background: var(--p1ai-light-bg); }

/* ---- 33. Divider ---- */
.p1ai-divider {
  border: none;
  border-top: 1px solid var(--p1ai-dark-border);
  margin-block: 0;
}

.p1ai-divider--light {
  border-top-color: var(--p1ai-light-border);
}

/* ---- 34. Responsive ---- */

/* Large screens */
@media (max-width: 1024px) {
  .p1ai-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .p1ai-footer__brand { grid-column: 1 / -1; }
}

/* Tablets (768px) */
@media (max-width: 900px) {
  :root {
    --p1ai-section-py: 56px;
  }

  .p1ai-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .p1ai-testimonials {
    grid-template-columns: 1fr;
  }

  .p1ai-feature-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .p1ai-tiers-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .p1ai-tier-card--highlight { order: -1; }

  .p1ai-team-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .p1ai-location-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .p1ai-article-card--featured .p1ai-article-card__link {
    flex-direction: column;
  }

  .p1ai-article-card--featured .p1ai-article-card__cover {
    width: 100%;
    aspect-ratio: 16/9;
  }

  .p1ai-usecase__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .p1ai-usecase__inner--flip { direction: ltr; }

  .p1ai-two-col-text { grid-template-columns: 1fr; gap: 24px; }

  .p1ai-related-grid { grid-template-columns: 1fr; }

  .p1ai-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .p1ai-footer__brand { grid-column: 1 / -1; }

  .p1ai-engine-mock {
    grid-template-columns: 1fr;
  }

  .p1ai-engine-divider {
    height: 1px;
    width: 100%;
    opacity: 0.4;
  }
}

/* Mobile (640px) */
@media (max-width: 640px) {
  :root {
    --p1ai-section-py: 40px;
  }

  .p1ai-nav__links { display: none; }
  .p1ai-nav__hamburger { display: flex; }

  .p1ai-container { padding-inline: 16px; }
  .p1ai-container--narrow { padding-inline: 16px; }

  .p1ai-workflow-mock {
    display: flex;
    flex-direction: column;
  }

  .p1ai-workflow-connector { transform: rotate(90deg); padding: 8px 0; }

  .p1ai-article-grid {
    grid-template-columns: 1fr;
  }

  .p1ai-article-card--featured .p1ai-article-card__link {
    flex-direction: column;
  }

  .p1ai-footer__top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .p1ai-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .p1ai-hero__h1 { font-size: 1.875rem; }

  .p1ai-btn-group { flex-direction: column; align-items: flex-start; }

  .p1ai-auth-card { padding: 28px 20px; }

  .p1ai-cookie-banner__inner { flex-direction: column; }

  .p1ai-faq { max-width: 100%; }

  .p1ai-section-head { margin-bottom: 32px; }
}

/* Accessibility: reduced motion */
@media (prefers-reduced-motion: reduce) {
  .p1ai-fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---- Supplemental: classes added by agent-2 pages ---- */

/* 404 semantic heading/sub aliases */
.p1ai-404-heading {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(1.25rem, 3vw, 1.875rem);
  color: var(--p1ai-dark-text);
  margin: 0;
}

.p1ai-404-sub {
  color: var(--p1ai-dark-muted);
  max-width: 420px;
  font-size: 1rem;
  line-height: 1.65;
}

/* Auth form wrapper — JS state hook, no layout styling */
.p1ai-auth-form-wrap {
  /* JS state hook only — visibility toggled by auth JS */
}

/* Field label class alias (CSS also targets .p1ai-field label) */
.p1ai-field__label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--p1ai-dark-muted);
}

/* Mission section modifier */
.p1ai-mission-section {
  text-align: center;
}

/* Tier card price — ensure light color on highlight card dark bg */
.p1ai-tier-card--highlight .p1ai-tier-card__price {
  color: var(--p1ai-dark-text);
}

.p1ai-tier-card--highlight .p1ai-tier-card__price span {
  color: var(--p1ai-dark-muted);
}

/* Tier outline button — for Explorer and Program tiers on white section */
.p1ai-btn--outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 6px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  background: transparent;
  color: var(--p1ai-light-text);
  border: 1.5px solid var(--p1ai-light-border);
}

.p1ai-btn--outline:hover {
  border-color: #8A98B0;
  background: var(--p1ai-light-bg);
}

/* Tier features absent row (greyed-out items) */
.p1ai-tier-features__absent {
  opacity: 0.45;
}

/* Use case panel */
.p1ai-usecase-panel {
  background: linear-gradient(145deg, #243450 0%, #182238 100%);
  border: 1px solid var(--p1ai-dark-border);
  border-radius: 8px;
  padding: 20px 24px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.p1ai-usecase-panel--light {
  background: var(--p1ai-light-bg);
  border-color: var(--p1ai-light-border);
  color: var(--p1ai-light-text);
}

.p1ai-usecase-panel__label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--p1ai-dark-muted);
  margin-bottom: 4px;
}

.p1ai-usecase-panel__kv {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--p1ai-dark-text);
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--p1ai-dark-border);
  padding-bottom: 8px;
}

.p1ai-usecase-panel__kv:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.p1ai-usecase-panel__kv span:first-child {
  color: var(--p1ai-dark-muted);
}

.p1ai-usecase-panel--light .p1ai-usecase-panel__kv {
  border-bottom-color: var(--p1ai-light-border);
  color: var(--p1ai-light-text);
}

.p1ai-usecase-panel--light .p1ai-usecase-panel__kv span:first-child {
  color: var(--p1ai-light-muted);
}

/* Use case list */
.p1ai-usecase__list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.p1ai-usecase__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--p1ai-dark-muted);
  padding-left: 14px;
  position: relative;
}

.p1ai-usecase__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--p1ai-blue);
  flex-shrink: 0;
}

.p1ai-usecase__list--light li {
  color: var(--p1ai-light-muted);
}

.p1ai-usecase__list--light li::before {
  background: var(--p1ai-blue-text);
}

/* Use case badge on light background */
.p1ai-usecase__badge--light {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--p1ai-blue-text);
  background: rgba(26, 96, 212, 0.1);
  border: 1px solid rgba(26, 96, 212, 0.2);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 16px;
}

/* Fix: Aerospace badge on dark bg — boost contrast past 4.5:1 */
.p1ai-usecase__badge {
  color: #5B9BF8;
}

/* Fix: badge on light background — darker blue for contrast on tinted badge bg */
.p1ai-usecase__badge--light {
  color: #134DB6;
}

/* Article card cover link */
.p1ai-article-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.p1ai-article-card__link:hover {
  text-decoration: none;
}