/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand-deep:    #003d73;
  --brand-mid:     #0061a4;
  --brand-accent:  #0078d4;
  --brand-light:   #50e6ff;
  --teal-accent:   #00b7c3;
  --surface:       #ffffff;
  --surface-alt:   #f0f6ff;
  --surface-hover: #dceeff;
  --text:          #0d1117;
  --text-muted:    #4a5568;
  --text-on-dark:  #e8f4fd;
  --border:        #d0e4f5;
  --radius:        12px;
  --radius-lg:     20px;
  --shadow-sm:     0 1px 3px rgba(0,61,115,.06);
  --shadow-md:     0 4px 16px rgba(0,61,115,.08);
  --shadow-lg:     0 8px 32px rgba(0,61,115,.14);
  --transition:    .2s cubic-bezier(.4,0,.2,1);
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3rem;
  --space-10: 4rem;
  --text-xs: .7rem;
  --text-sm: .8rem;
  --text-base: .935rem;
  --text-md: 1rem;
  --text-lg: 1.1rem;
  --text-xl: 1.2rem;
  --text-2xl: 1.4rem;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Aptos', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--brand-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-mid); }

/* Focus-visible for keyboard navigation */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Hero ── */
.hero {
  background-color: #0d1b35;
  background-image: radial-gradient(circle, rgba(255,255,255,.11) 1px, transparent 1px);
  background-size: 26px 26px;
  color: #ffffff;
  padding: 3.5rem 2rem 3rem;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 90% at 8%  50%, rgba(0,120,212,.32)  0%, transparent 60%),
    radial-gradient(ellipse 55% 75% at 92% 35%, rgba(92,45,145,.28)  0%, transparent 60%),
    radial-gradient(ellipse 60% 65% at 52% 98%, rgba(0,183,195,.2)   0%, transparent 58%);
  animation: auroraShift 14s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes auroraShift {
  0%   { transform: scale(1)    translate(0,    0);   opacity: .8; }
  100% { transform: scale(1.1) translate(3%, 2%);    opacity: 1;  }
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: rgba(255,255,255,.18);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50px;
  padding: .3rem .9rem;
  margin-bottom: 1.1rem;
  color: rgba(255,255,255,.92);
}
.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.15;
  margin-bottom: .85rem;
  color: #ffffff;
}
.hero p {
  font-size: var(--text-md);
  opacity: .88;
  color: #ffffff;
}
.hero a { color: #ffffff; text-decoration: underline; }

/* ── Main ── */
main {
  flex: 1;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-9) var(--space-7) var(--space-10);
}

.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--space-7);
}

/* ── Resource Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(0,120,212,.35);
  color: var(--text);
}

/* Subtle top accent bar per card */
.card::before {
  content: '';
  display: block;
  height: 4px;
  width: 100%;
  transition: height var(--transition);
}
.card-agent365::before          { background: linear-gradient(90deg, #3b5bdb, #6b8ef5); }
.card-m365copilot::before       { background: linear-gradient(90deg, #0078d4, #00b7c3); }
.card-copilot-studio::before    { background: linear-gradient(90deg, #7c3aed, #c084fc); }
.card-build-agents::before      { background: linear-gradient(90deg, #F45B69, #F45B69); }
.card-foundry::before           { background: linear-gradient(90deg, #1038c8, #3d6be0); }
.card-platform-advisor::before  { background: linear-gradient(90deg, #00897b, #26c6da); }
.card:hover::before { height: 5px; }

.card-body {
  padding: 1.75rem 1.75rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.card-icon { background: none; }
.card-icon img { width: 100%; height: 100%; object-fit: contain; }

.card-title-group {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.card-eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.card-agent365          .card-eyebrow { color: #1d4ed8; }
.card-m365copilot       .card-eyebrow { color: #0369a1; }
.card-copilot-studio    .card-eyebrow { color: #5b21b6; }
.card-build-agents      .card-eyebrow { color: #c0392b; }
.card-foundry           .card-eyebrow { color: #1038c8; }
.card-platform-advisor  .card-eyebrow { color: #00695c; }

.card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text);
}

.card-desc {
  font-size: .92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Card footer / CTA */
.card-cta {
  padding: 1rem 1.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
}
.cta-link {
  font-size: .9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: gap var(--transition), color var(--transition);
}
.card-agent365       .cta-link { color: #1d4ed8; }
.card-m365copilot    .cta-link { color: var(--brand-accent); }
.card-copilot-studio .cta-link { color: #5b21b6; }
.card-build-agents   .cta-link { color: #c0392b; }
.card-foundry        .cta-link { color: #1038c8; }
.card:hover .cta-link { gap: .7rem; }

.cta-arrow {
  display: inline-block;
  font-size: var(--text-md);
  line-height: 1;
}

.cta-badge {
  font-size: .7rem;
  font-weight: 700;
  padding: .45rem .75rem;
  border-radius: 6px;
  letter-spacing: .02em;
}
.card-agent365          .cta-badge { background: #dbeafe; color: #1d4ed8; }
.card-m365copilot       .cta-badge { background: #e0f2fe; color: #0369a1; }
.card-copilot-studio    .cta-badge { background: #ede9fe; color: #5b21b6; }
.card-build-agents      .cta-badge { background: #fde8ea; color: #c0392b; }
.card-foundry           .cta-badge { background: #dce5ff; color: #1038c8; }
.card-platform-advisor  .cta-badge { background: #e0f2f1; color: #00695c; }
.card-platform-advisor  .cta-badge { background: #e0f2f1; color: #00695c; }

/* ── Footer ── */
footer {
  background-color: #0d1b35;
  background-image: radial-gradient(circle, rgba(255,255,255,.11) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--text-on-dark);
  text-align: center;
  padding: 2.5rem 2rem 2rem;
  position: relative;
}
footer p { opacity: .65; font-size: .88rem; }
footer a { color: var(--brand-light); padding: .25rem 0; }
footer a:hover { color: #fff; }
footer .copyright { margin-top: 1rem; font-size: .78rem; opacity: .4; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero { padding: 2rem 1.25rem 1.75rem; }
  main { padding: var(--space-7) var(--space-4) var(--space-9); }
  .cards { grid-template-columns: 1fr; }
}

@media (min-width: 1020px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}