/* ============================================================
   SU ITS Data & AI — Landing Page Styles
   ============================================================
   Used for: site root (/) and department landings (/data-ai/).
   Section order: nav, hero, tool cards, trust banner, footer.
   ============================================================ */

/* ── Hero ──────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: calc(var(--nav-height) + var(--space-9)) var(--space-7) var(--space-9);
  color: var(--su-white);
}

/* Layered background: textured image + navy gradient overlay */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("./assets/img/background.png") center/cover no-repeat;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(247, 105, 0, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(43, 114, 215, 0.25) 0%, transparent 60%),
    linear-gradient(180deg, rgba(0, 14, 84, 0.55) 0%, rgba(0, 14, 84, 0.85) 100%);
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  width: 100%;
}

.hero .eyebrow {
  color: var(--su-orange-light);
  margin-bottom: var(--space-5);
  justify-content: center;
}

.hero .eyebrow::before {
  background: var(--su-orange);
}

.hero h1 {
  font-size: var(--fs-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
  color: var(--su-white);
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--su-orange-light) 0%, var(--su-orange) 60%, var(--su-orange-medium) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero-subhead {
  font-size: clamp(1.125rem, 1.6vw, 1.375rem);
  font-weight: 400;
  line-height: var(--lh-snug);
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: var(--space-6);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-panel {
  background: rgba(0, 14, 84, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
  max-width: 680px;
  margin: 0 auto var(--space-7);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: rgba(255, 255, 255, 0.94);
}

.hero-panel strong {
  color: var(--su-orange-light);
  font-weight: 700;
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.hero-meta {
  margin-top: var(--space-7);
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-small);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.hero-meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--su-orange);
  box-shadow: 0 0 12px var(--su-orange);
  animation: heroDotPulse 2.4s ease-in-out infinite;
}

@keyframes heroDotPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Page-load reveal (staggered) */
.hero-inner > * {
  opacity: 0;
  transform: translateY(12px);
  animation: heroReveal 0.7s var(--ease-out) forwards;
}

.hero-inner > *:nth-child(1) { animation-delay: 0.05s; }
.hero-inner > *:nth-child(2) { animation-delay: 0.12s; }
.hero-inner > *:nth-child(3) { animation-delay: 0.2s; }
.hero-inner > *:nth-child(4) { animation-delay: 0.28s; }
.hero-inner > *:nth-child(5) { animation-delay: 0.36s; }
.hero-inner > *:nth-child(6) { animation-delay: 0.44s; }

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero {
    padding: calc(var(--nav-height) + var(--space-7)) var(--space-5) var(--space-7);
    min-height: auto;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn {
    justify-content: center;
  }
}

/* ── Tool Cards ────────────────────────────────────────── */

.tools {
  padding: var(--space-9) var(--space-7);
  background: linear-gradient(180deg, var(--su-white) 0%, var(--su-pale-gray) 100%);
}

.tools-inner {
  max-width: var(--container-reading);
  margin: 0 auto;
}

.tools-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.tools-header .eyebrow {
  justify-content: center;
  margin-bottom: var(--space-4);
}

.tools-header h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--su-blue);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-3);
  line-height: var(--lh-snug);
}

.tools-header p {
  font-size: var(--fs-lead);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--lh-normal);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

@media (max-width: 980px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  background: var(--su-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-decoration: none;
  color: inherit;
  transition: transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out);
  overflow: hidden;
}

.tool-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--su-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: rgba(247, 105, 0, 0.25);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: inherit;
}

.tool-card:hover::before {
  transform: scaleX(1);
}

/* Featured card — gradient border (clementine pattern) */
.tool-card--featured {
  border: 2.5px solid transparent;
  background:
    linear-gradient(var(--su-white), var(--su-white)) padding-box,
    var(--grad-card-border) border-box;
  box-shadow: 0 4px 24px rgba(247, 105, 0, 0.12), var(--shadow-md);
}

.tool-card--featured:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-accent);
  border-color: transparent;
}

.tool-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.tool-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--su-pale-gray);
  color: var(--su-blue);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  border: 1px solid var(--color-border);
}

.tool-card--featured .tool-card-icon {
  background: var(--grad-orange);
  color: var(--su-white);
  border-color: transparent;
  box-shadow: var(--shadow-glow-orange);
}

.tool-card-title {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--su-blue);
  line-height: var(--lh-snug);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tool-card-desc {
  font-size: 0.9375rem;
  line-height: var(--lh-normal);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.tool-card-meta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tool-card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--su-orange-dark);
  text-decoration: none;
  transition: gap var(--duration-fast) ease, color var(--duration-fast) ease;
}

.tool-card:hover .tool-card-cta {
  gap: var(--space-3);
  color: var(--su-orange-accessible);
}

.tool-card-cta svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── Trust Banner ──────────────────────────────────────── */

.trust-banner {
  padding: var(--space-9) var(--space-7);
  background: var(--su-blue);
  color: var(--su-white);
  position: relative;
  overflow: hidden;
}

.trust-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(247, 105, 0, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 100%, rgba(43, 114, 215, 0.2) 0%, transparent 55%),
    var(--grad-blue);
  z-index: 0;
}

.trust-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-reading);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.trust-block {
  padding: 0 var(--space-7);
}

.trust-block:first-child {
  padding-left: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.trust-block:last-child {
  padding-right: 0;
}

.trust-block .eyebrow {
  color: var(--su-orange-light);
  margin-bottom: var(--space-4);
}

.trust-block .eyebrow::before {
  background: var(--su-orange);
}

.trust-block h2 {
  font-size: clamp(1.375rem, 2vw, 1.875rem);
  font-weight: 700;
  color: var(--su-white);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-tight);
}

.trust-block h2 .accent {
  color: var(--su-orange);
}

.trust-block p {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: var(--space-5);
  max-width: 460px;
}

@media (max-width: 768px) {
  .trust-inner {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }

  .trust-block {
    padding: 0;
  }

  .trust-block:first-child {
    padding-left: 0;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: var(--space-7);
  }
}