/* ===================================
   AI SEO SECTION — shared styles
   Used by /ai-seo and /ai-seo/*
   =================================== */

/* ==================
   HERO
   ================== */
.aiseo-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 88vh;
}

.aiseo-hero--sub { min-height: 60vh; }

.aiseo-hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 24%, rgba(52, 211, 153, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 84% 68%, rgba(129, 140, 248, 0.06) 0%, transparent 55%);
}

.aiseo-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 70%, var(--bg-page) 100%);
}

.aiseo-hero__content {
  position: relative;
  z-index: 2;
  padding: 160px 0 120px;
  max-width: 960px;
  text-align: center;
}

.aiseo-hero--sub .aiseo-hero__content { padding: 150px 0 88px; }

.aiseo-hero__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.4vw, 68px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -2.5px;
  margin-bottom: 28px;
}

.aiseo-hero__title span { display: block; }

.aiseo-hero__sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 40px;
}

.aiseo-crumb {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 22px;
}

.aiseo-crumb a { color: var(--text-secondary); transition: color 0.3s var(--ease-out); }
.aiseo-crumb a:hover { color: var(--accent-green); }
.aiseo-crumb span[aria-hidden] { color: var(--text-dim); }

/* ==================
   SECTION SHELL
   ================== */
.aiseo-section { padding: 130px 0; background: var(--bg-page); }
.aiseo-section--alt { background: var(--bg-section-alt); }

.aiseo-lede {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.aiseo-lede strong { color: var(--text-primary); font-weight: 600; }

.aiseo-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 88px;
  align-items: center;
}

.aiseo-split > * { min-width: 0; }

.aiseo-split__title {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -2px;
  color: var(--text-primary);
  margin-bottom: 26px;
}

/* ==================
   PROBLEM TRIPTYCH
   ================== */
.aiseo-problems { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aiseo-problems > * { min-width: 0; }

.aiseo-problem {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 38px 32px;
  transition: border-color 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.aiseo-problem:hover { border-color: var(--border-strong); transform: translateY(-3px); }

.aiseo-problem__kind {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-coral);
  margin-bottom: 16px;
}

.aiseo-problem__title {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.aiseo-problem__desc { font-size: 14.5px; line-height: 1.7; color: var(--text-muted); }

/* ==================
   OUTCOMES
   ================== */
.aiseo-outcomes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aiseo-outcomes > * { min-width: 0; }

.aiseo-outcome {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 42px 34px 34px;
  overflow: hidden;
}

.aiseo-outcome__num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.4px;
  color: var(--accent-green);
  margin-bottom: 18px;
}

.aiseo-outcome__title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.aiseo-outcome__desc { font-size: 14.5px; line-height: 1.7; color: var(--text-muted); margin-bottom: 24px; }

.aiseo-outcome__metric {
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.aiseo-outcome__metric b { color: var(--accent-green); font-weight: 600; }

/* ==================
   PILLARS
   ================== */
.aiseo-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aiseo-pillars > * { min-width: 0; }

.aiseo-pillar {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 38px 32px;
  transition: all 0.45s var(--ease-out);
}

.aiseo-pillar:hover {
  border-color: rgba(52, 211, 153, 0.28);
  background: var(--bg-elevated);
  transform: translateY(-4px);
}

.aiseo-pillar__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.aiseo-pillar__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 20px;
  color: var(--accent-green);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
}

.aiseo-pillar__icon--indigo {
  color: var(--accent-indigo);
  background: rgba(129, 140, 248, 0.1);
  border-color: rgba(129, 140, 248, 0.2);
}

.aiseo-pillar__icon--amber {
  color: var(--accent-amber);
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.2);
}

.aiseo-pillar__icon--coral {
  color: var(--accent-coral);
  background: rgba(251, 113, 133, 0.1);
  border-color: rgba(251, 113, 133, 0.2);
}

.aiseo-pillar__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.aiseo-pillar__name {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 3px;
}

.aiseo-pillar__desc { font-size: 14.5px; line-height: 1.7; color: var(--text-muted); }

/* ==================
   CONTRAST TABLE
   ================== */
.aiseo-contrast { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.aiseo-contrast > * { min-width: 0; }

.aiseo-contrast__col {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 40px 36px;
}

.aiseo-contrast__col--bad { border-color: rgba(251, 113, 133, 0.22); }
.aiseo-contrast__col--good { border-color: rgba(52, 211, 153, 0.22); }

.aiseo-contrast__title {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.aiseo-contrast__col--bad .aiseo-contrast__title i { color: var(--accent-coral); }
.aiseo-contrast__col--good .aiseo-contrast__title i { color: var(--accent-green); }

.aiseo-contrast__list { list-style: none; padding: 0; margin: 0; }

.aiseo-contrast__list li {
  position: relative;
  padding: 0 0 15px 24px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.aiseo-contrast__list li:last-child { padding-bottom: 0; }

.aiseo-contrast__list li::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.aiseo-contrast__col--bad .aiseo-contrast__list li::before { background: var(--accent-coral); }
.aiseo-contrast__col--good .aiseo-contrast__list li::before { background: var(--accent-green); }

/* ==================
   STEPS
   ================== */
.aiseo-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aiseo-steps > * { min-width: 0; }

.aiseo-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 38px 32px;
}

.aiseo-step__num {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent-green);
  margin-bottom: 16px;
}

.aiseo-step__title {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.aiseo-step__desc { font-size: 14.5px; line-height: 1.7; color: var(--text-muted); }

/* ==================
   CASE STUDY
   ================== */
.aiseo-case {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 56px 48px;
}

.aiseo-case__head { margin-bottom: 38px; }

.aiseo-case__industry {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 12px;
}

.aiseo-case__title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -1.2px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.aiseo-case__desc { font-size: 15px; line-height: 1.7; color: var(--text-muted); max-width: 640px; }

.aiseo-case__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 34px;
  border-top: 1px solid var(--border-subtle);
}

.aiseo-case__grid > * { min-width: 0; }

.aiseo-metric__value {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 500;
  letter-spacing: -1.5px;
  line-height: 1;
  color: var(--accent-green);
  margin-bottom: 8px;
}

.aiseo-metric__value--indigo { color: var(--accent-indigo); }
.aiseo-metric__value--amber { color: var(--accent-amber); }
.aiseo-metric__value--coral { color: var(--accent-coral); }

.aiseo-metric__label { font-size: 13.5px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 6px; }
.aiseo-metric__note { font-size: 12px; color: var(--text-dim); line-height: 1.5; }

.aiseo-case__note {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* Visually hidden but available to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==================
   VISIBILITY AUDIT TOOL
   ================== */
.aiseo-tool {
  max-width: 780px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 48px 44px;
}

.aiseo-tool__row { display: flex; gap: 12px; }

.aiseo-tool__input {
  flex: 1;
  min-width: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 15px 24px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color 0.3s var(--ease-out);
}

.aiseo-tool__input::placeholder { color: var(--text-dim); }
.aiseo-tool__input:focus { outline: none; border-color: rgba(52, 211, 153, 0.5); }

.aiseo-tool__stages {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 36px;
}

.aiseo-stage { text-align: center; opacity: 0.4; transition: opacity 0.5s var(--ease-out); }
.aiseo-stage.is-active,
.aiseo-stage.is-done { opacity: 1; }

.aiseo-stage__dot {
  width: 12px;
  height: 12px;
  margin: 0 auto 10px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  transition: all 0.4s var(--ease-out);
}

.aiseo-stage.is-active .aiseo-stage__dot {
  border-color: var(--accent-green);
  background: var(--accent-green);
  box-shadow: 0 0 0 5px rgba(52, 211, 153, 0.14);
}

.aiseo-stage.is-done .aiseo-stage__dot {
  border-color: var(--accent-green);
  background: rgba(52, 211, 153, 0.35);
}

.aiseo-stage__label {
  font-size: 11.5px;
  letter-spacing: 0.4px;
  color: var(--text-muted);
  line-height: 1.4;
}

.aiseo-tool__track {
  position: relative;
  height: 2px;
  margin: 26px 0 8px;
  background: var(--border-subtle);
  border-radius: 2px;
  overflow: hidden;
}

.aiseo-tool__fill {
  position: absolute;
  inset: 0 100% 0 0;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-indigo));
  transition: right 0.6s var(--ease-out);
}

.aiseo-tool__status {
  font-size: 13.5px;
  color: var(--text-muted);
  text-align: center;
  min-height: 20px;
}

.aiseo-tool__panel { display: none; margin-top: 32px; }
.aiseo-tool__panel.is-visible { display: block; }

.aiseo-tool__note {
  margin-top: 22px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-dim);
  text-align: center;
}

.aiseo-tool__msg {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
}

.aiseo-tool__msg.is-visible { display: flex; }

.aiseo-tool__msg--error {
  color: var(--accent-coral);
  background: rgba(251, 113, 133, 0.08);
  border: 1px solid rgba(251, 113, 133, 0.25);
}

.aiseo-tool__msg--success {
  color: var(--accent-green);
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.aiseo-models {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.aiseo-models > * { min-width: 0; }

.aiseo-model {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 14px;
  text-align: center;
}

.aiseo-model__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.aiseo-model__desc { font-size: 11.5px; color: var(--text-dim); line-height: 1.4; }

/* ==================
   SPOKE CARDS
   ================== */
.aiseo-spokes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.aiseo-spokes > * { min-width: 0; }

.aiseo-spoke {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 38px 34px;
  transition: all 0.45s var(--ease-out);
}

.aiseo-spoke:hover {
  border-color: rgba(52, 211, 153, 0.3);
  background: var(--bg-elevated);
  transform: translateY(-4px);
}

.aiseo-spoke__eyebrow {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 14px;
}

.aiseo-spoke__title {
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 500;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 13px;
}

.aiseo-spoke__desc { font-size: 14.5px; line-height: 1.7; color: var(--text-muted); }

.aiseo-spoke__arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-green);
}

/* ==================
   CTA BAND
   ================== */
.aiseo-cta { padding: 120px 0; background: var(--bg-section-alt); }

.aiseo-cta__inner {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-2xl);
  padding: 66px 60px;
  text-align: center;
}

.aiseo-cta__inner::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, rgba(52, 211, 153, 0.08) 0%, transparent 65%);
}

.aiseo-cta__title {
  position: relative;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 500;
  letter-spacing: -1.8px;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.aiseo-cta__sub {
  position: relative;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
}

.aiseo-cta__ctas {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ==================
   RESPONSIVE
   ================== */
@media (max-width: 1024px) {
  .aiseo-section { padding: 100px 0; }
  .aiseo-split { grid-template-columns: 1fr; gap: 48px; }
  .aiseo-split__title { font-size: 36px; }
  .aiseo-problems { grid-template-columns: 1fr; }
  .aiseo-outcomes { grid-template-columns: 1fr; }
  .aiseo-pillars { grid-template-columns: repeat(2, 1fr); }
  .aiseo-steps { grid-template-columns: 1fr; }
  .aiseo-case { padding: 42px 32px; }
  .aiseo-case__grid { grid-template-columns: repeat(2, 1fr); }
  .aiseo-cta__inner { padding: 52px 36px; }
  .aiseo-cta__title { font-size: 32px; }
}

@media (max-width: 768px) {
  .aiseo-hero__content { padding: 130px 0 90px; }
  .aiseo-hero__sub { font-size: 16px; }
  .aiseo-pillars { grid-template-columns: 1fr; }
  .aiseo-spokes { grid-template-columns: 1fr; }
  .aiseo-contrast { grid-template-columns: 1fr; }
  .aiseo-tool { padding: 34px 24px; }
  .aiseo-tool__row { flex-direction: column; }
  .aiseo-tool__stages { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .aiseo-stage__label { font-size: 9.5px; }
  .aiseo-models { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .aiseo-case__grid { grid-template-columns: 1fr; }
  .aiseo-problem, .aiseo-outcome, .aiseo-pillar, .aiseo-step { padding: 30px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .aiseo-stage, .aiseo-tool__fill { transition: none; }
  .aiseo-pillar:hover, .aiseo-spoke:hover, .aiseo-problem:hover { transform: none; }
}