/* Phase 1 Public Content
   Intentionally separate from styles.css so existing BAC UI remains intact. */

:root {
  --pc-green: #006644;
  --pc-green-dark: #073b32;
  --pc-green-deep: #052e27;
  --pc-mint: #eaf7f2;
  --pc-ink: #10241f;
  --pc-muted: #5d6d68;
  --pc-border: #dce7e3;
  --pc-paper: #ffffff;
  --pc-soft: #f6f9f8;
  --pc-spark: #3e327f;
  --pc-radius: 22px;
  --pc-shadow: 0 16px 42px rgba(15, 45, 36, .10);
}

.public-page { color: var(--pc-ink); }
.public-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.public-narrow { width: min(820px, calc(100% - 40px)); margin: 0 auto; }

.public-kicker {
  margin: 0 0 12px;
  color: var(--pc-green);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
}
.public-title {
  margin: 0;
  max-width: 900px;
  font-size: clamp(2.7rem, 6vw, 5.8rem);
  line-height: .98;
  letter-spacing: -.055em;
}
.public-subtitle {
  margin: 24px 0 0;
  max-width: 740px;
  color: var(--pc-muted);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.65;
}

.public-hero {
  padding: 90px 0 78px;
  background:
    radial-gradient(circle at 86% 16%, rgba(76, 168, 132, .22), transparent 26%),
    linear-gradient(135deg, #ecf8f4 0%, #fff 48%, #f4f9f7 100%);
  border-bottom: 1px solid var(--pc-border);
}
.public-hero--dark {
  color: #fff;
  background:
    radial-gradient(circle at 82% 28%, rgba(73, 159, 128, .28), transparent 28%),
    linear-gradient(135deg, var(--pc-green-deep), #075b46);
}
.public-hero--dark .public-kicker { color: #a5e4cd; }
.public-hero--dark .public-subtitle { color: rgba(255,255,255,.78); }

.public-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.public-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 20px; border-radius: 999px;
  text-decoration: none; font-weight: 800; border: 1px solid transparent;
}
.public-btn--primary { color: #fff; background: var(--pc-green); }
.public-btn--light { color: var(--pc-green-deep); background: #fff; }
.public-btn--outline { color: var(--pc-green-deep); border-color: #b9cec6; background: transparent; }
.public-btn:hover { transform: translateY(-1px); }

.public-section { padding: 82px 0; }
.public-section--soft { background: var(--pc-soft); }
.public-section--dark { background: var(--pc-green-deep); color: #fff; }
.public-section-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.6rem);
  letter-spacing: -.04em;
}
.public-section-copy {
  margin: 18px 0 0; max-width: 730px; color: var(--pc-muted); line-height: 1.75;
}
.public-section--dark .public-section-copy { color: rgba(255,255,255,.74); }

.public-grid { display: grid; gap: 22px; }
.public-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.public-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }

.public-card {
  background: #fff; border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius); padding: 28px; box-shadow: 0 5px 18px rgba(15,45,36,.04);
}
.public-card h3 { margin: 0 0 11px; font-size: 1.35rem; }
.public-card p { margin: 0; color: var(--pc-muted); line-height: 1.7; }
.public-card .card-link { display: inline-block; margin-top: 18px; font-weight: 800; color: var(--pc-green); text-decoration: none; }

.home-hero-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; align-items: center; }
.home-side-card {
  border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.08);
  backdrop-filter: blur(8px); border-radius: 28px; padding: 34px;
}
.home-side-card strong { display: block; font-size: 2.6rem; margin-bottom: 4px; }
.home-side-card span { color: rgba(255,255,255,.75); }
.home-stat + .home-stat { margin-top: 26px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.15); }

.about-statement {
  padding: 42px; border-radius: 28px; background: var(--pc-green-deep); color: #fff;
}
.about-statement p { color: rgba(255,255,255,.78); font-size: 1.14rem; line-height: 1.8; }

.feature-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.feature-photo {
  width: 100%; display: block; border-radius: 28px; box-shadow: var(--pc-shadow);
}

/* Professional-development flip cards */
.career-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; margin-top: 42px; }
.flip-card {
  min-height: 270px; perspective: 1000px; cursor: pointer;
}
.flip-card-inner {
  position: relative; width: 100%; height: 100%; min-height: 270px;
  transition: transform .55s cubic-bezier(.2,.75,.25,1); transform-style: preserve-3d;
}
.flip-card.is-flipped .flip-card-inner { transform: rotateY(180deg); }
.flip-card-face {
  position: absolute; inset: 0; border-radius: 24px; padding: 28px;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border: 1px solid var(--pc-border); display: flex; flex-direction: column;
  justify-content: space-between; box-shadow: 0 7px 25px rgba(15,45,36,.06);
}
.flip-card-front {
  background: linear-gradient(145deg, #fff, #f1f8f5);
}
.flip-card-back {
  background: var(--pc-green-deep); color: #fff; transform: rotateY(180deg);
}
.flip-card-label { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 800; color: var(--pc-green); }
.flip-card-title { margin: 0; font-size: 2rem; letter-spacing: -.035em; }
.flip-card-front .flip-card-hint { color: var(--pc-muted); font-weight: 700; }
.flip-card-back p { margin: 0; color: rgba(255,255,255,.78); line-height: 1.65; }
.flip-card-back .public-btn { width: fit-content; }
.flip-card:focus-visible { outline: 3px solid #79bda4; outline-offset: 4px; border-radius: 24px; }

.recruiting-banner {
  display: grid; grid-template-columns: 1.4fr .6fr; align-items: center; gap: 30px;
  background: linear-gradient(135deg, #eef8f4, #fff); border: 1px solid var(--pc-border);
  border-radius: 28px; padding: 38px;
}
.recruiting-steps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.recruiting-steps span { background: #fff; border: 1px solid var(--pc-border); border-radius: 999px; padding: 8px 12px; font-weight: 700; font-size: .9rem; }

/* SPARK */
.spark-hero { padding: 68px 0; background: #f8f7ff; border-bottom: 1px solid #e5e2f5; }
.spark-hero-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 56px; align-items: center; }
.spark-logo { width: min(100%, 520px); display: block; }
.spark-photo { width: 100%; border-radius: 28px; box-shadow: 0 18px 45px rgba(38,26,93,.16); }
.spark-chip { display: inline-flex; border-radius: 999px; padding: 7px 12px; background: #ece8ff; color: var(--pc-spark); font-weight: 800; font-size: .82rem; }
.spark-track { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 14px; margin-top: 38px; }
.spark-track-card { border: 1px solid #ded9f4; border-radius: 20px; padding: 22px; background: #fff; }
.spark-track-card strong { display: block; color: var(--pc-spark); margin-bottom: 8px; }
.spark-track-card p { margin: 0; color: var(--pc-muted); font-size: .92rem; line-height: 1.55; }

.employer-wall {
  margin-top: 34px; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px;
}
.employer-tile {
  min-height: 92px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--pc-border); border-radius: 18px;
  font-weight: 900; font-size: 1.18rem; letter-spacing: -.02em; text-align: center;
}
.employer-tile small { display: block; font-size: .7rem; font-weight: 700; color: var(--pc-muted); }

/* Accounting at Babson */
.requirement-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 34px; }
.course-list { display: grid; gap: 12px; margin-top: 18px; }
.course-item { border: 1px solid var(--pc-border); background: #fff; border-radius: 16px; padding: 17px 18px; }
.course-code { font-weight: 900; color: var(--pc-green); margin-right: 8px; }
.source-note {
  margin-top: 20px; padding: 18px 20px; background: #fff8df; border: 1px solid #f0dda1;
  border-radius: 16px; color: #66561e; line-height: 1.6;
}
.source-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* Career pages */
.career-hero { padding: 82px 0 62px; background: #f2f8f5; border-bottom: 1px solid var(--pc-border); }
.career-layout { display: grid; grid-template-columns: 1fr .65fr; gap: 52px; }
.career-meta { background: #fff; border: 1px solid var(--pc-border); border-radius: 22px; padding: 24px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag-list span { background: var(--pc-mint); color: var(--pc-green-dark); border-radius: 999px; padding: 8px 11px; font-size: .86rem; font-weight: 700; }
.clean-list { margin: 18px 0 0; padding-left: 20px; color: var(--pc-muted); line-height: 1.9; }

@media (max-width: 960px) {
  .home-hero-layout, .feature-row, .spark-hero-grid, .career-layout, .recruiting-banner { grid-template-columns: 1fr; }
  .public-grid--3, .career-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .spark-track { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .employer-wall { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 650px) {
  .public-container, .public-narrow { width: min(100% - 28px, 1180px); }
  .public-hero, .public-section { padding: 58px 0; }
  .public-grid--3, .public-grid--2, .career-grid, .requirement-grid, .spark-track, .employer-wall { grid-template-columns: 1fr; }
  .public-card, .about-statement, .recruiting-banner { padding: 22px; }
  .flip-card, .flip-card-inner { min-height: 245px; }
}


/* Phase 1 final motion/polish */
.flip-card-face,
.spark-track-card,
.employer-tile,
.public-card {
  transition:
    transform .25s cubic-bezier(.2,.75,.25,1),
    box-shadow .25s ease,
    border-color .25s ease;
}
.spark-track-card:hover,
.employer-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(15,45,36,.08);
}
.feature-photo,
.spark-photo {
  transition: transform .5s cubic-bezier(.2,.75,.25,1), box-shadow .3s ease;
}
.feature-photo:hover,
.spark-photo:hover {
  transform: scale(1.012);
}