/* ===================================
   AI INFRASTRUCTURE PAGE — Styles
   =================================== */

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

.ai-hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 25%, rgba(52, 211, 153, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse at 15% 65%, rgba(129, 140, 248, 0.05) 0%, transparent 55%);
}

.ai-hero__grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000 0%, transparent 75%);
}

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

.ai-hero__content {
  position: relative;
  z-index: 2;
  padding: 160px 0 120px;
  max-width: 920px;
  text-align: center;
}

.ai-hero__title {
  margin-bottom: 32px;
}

/* ==================
   INTRO / VALUE FRAMING
   ================== */
.ai-intro {
  padding: 140px 0;
  background: var(--bg-section-alt);
}

.ai-intro__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 100px;
  align-items: center;
}

.ai-intro__title {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 28px;
}

.ai-intro__desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.ai-intro__desc2 {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

.ai-intro__stats {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ==================
   CAPABILITIES
   ================== */
.ai-capabilities {
  padding: 140px 0;
  background: var(--bg-page);
}

.ai-capabilities__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ai-cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 40px 32px;
  transition: all 0.5s var(--ease-out);
}

.ai-cap-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.ai-cap-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.ai-cap-card__icon i { font-size: 22px; }

.ai-cap-card__icon--green {
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.15);
}
.ai-cap-card__icon--green i { color: var(--accent-green); }

.ai-cap-card__icon--indigo {
  background: rgba(129, 140, 248, 0.1);
  border: 1px solid rgba(129, 140, 248, 0.15);
}
.ai-cap-card__icon--indigo i { color: var(--accent-indigo); }

.ai-cap-card__icon--coral {
  background: rgba(251, 113, 133, 0.1);
  border: 1px solid rgba(251, 113, 133, 0.15);
}
.ai-cap-card__icon--coral i { color: var(--accent-coral); }

.ai-cap-card__icon--amber {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.15);
}
.ai-cap-card__icon--amber i { color: var(--accent-amber); }

.ai-cap-card__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}

.ai-cap-card__desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
}

.ai-cap-card__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-cap-card__list li {
  position: relative;
  padding-left: 22px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.ai-cap-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  opacity: 0.7;
}

/* ==================
   PROCESS / TIMELINE
   ================== */
.ai-process {
  padding: 140px 0;
  background: var(--bg-section-alt);
}

.ai-process__steps {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.ai-process__step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 0 40px;
  padding-bottom: 48px;
  position: relative;
}

.ai-process__step:last-child {
  padding-bottom: 0;
}

.ai-process__step-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  letter-spacing: -1px;
  line-height: 1;
  padding-top: 4px;
  text-align: center;
}

.ai-process__step-num--green { color: var(--accent-green); }
.ai-process__step-num--indigo { color: var(--accent-indigo); }
.ai-process__step-num--coral { color: var(--accent-coral); }
.ai-process__step-num--amber { color: var(--accent-amber); }

.ai-process__step-content {
  padding-left: 40px;
  border-left: 1px solid var(--border-strong);
}

.ai-process__step:last-child .ai-process__step-content {
  border-left-color: transparent;
}

.ai-process__step-content h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.ai-process__step-time {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent-green);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.ai-process__step-content p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==================
   CASE STUDIES
   ================== */
.ai-cases {
  padding: 140px 0;
  background: var(--bg-page);
}

.ai-cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.5s var(--ease-out);
}

.ai-case-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.ai-case-card__tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-green);
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.15);
  border-radius: var(--radius-full, 999px);
  padding: 6px 14px;
  margin-bottom: 20px;
}

.ai-case-card__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin-bottom: 18px;
}

.ai-case-card__block {
  margin-bottom: 16px;
}

.ai-case-card__label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.ai-case-card__text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.ai-case-card__result {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.ai-case-card__result-num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 400;
  letter-spacing: -1.5px;
  line-height: 1;
  color: var(--accent-green);
  margin-bottom: 6px;
}

.ai-case-card__result-label {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.ai-cases__note {
  text-align: center;
  margin-top: 48px;
  font-size: 13px;
  color: var(--text-dim);
  font-style: italic;
}

/* ==================
   RESPONSIVE
   ================== */
@media (max-width: 1024px) {
  .ai-intro__grid { grid-template-columns: 1fr; gap: 60px; }
  .ai-capabilities__grid { grid-template-columns: repeat(2, 1fr); }
  .ai-cases__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .ai-hero { min-height: 80vh; }
  .ai-hero__content { padding: 100px 0 80px; }

  .ai-intro,
  .ai-capabilities,
  .ai-process,
  .ai-cases { padding: 100px 0; }

  .ai-intro__title { font-size: 32px; }

  .ai-capabilities__grid { grid-template-columns: 1fr; }

  .ai-process__step { grid-template-columns: 48px 1fr; gap: 0 24px; }
  .ai-process__step-num { font-size: 28px; }
  .ai-process__step-content { padding-left: 24px; }
}

@media (max-width: 480px) {
  .ai-intro__title { font-size: 28px; }
  .ai-case-card__result-num { font-size: 28px; }
}