/* ============================================================
   OPEN INNOVATION — Zigzag + Card Grid
   ============================================================ */

/* ============================================
   PAGE WRAPPER
   ============================================ */
.open-innovation-page {
  padding: 90px 20px 80px;
  background: var(--bg-color-primary);
  min-height: 100vh;
}

.open-innovation-page .container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ============================================
   IFRAME SUPPORT (same size as video/image)
   ============================================ */
.project-media iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border: 0;
  display: block;
  border-radius: 12px;
}

/* ============================================
   PROJECT CARDS SECTION
   ============================================ */
.project-cards-section {
  margin-top: 80px;
}

.project-cards-section .section-title {
  font-size: var(--h3-font-size);
  font-weight: var(--h3-font-weight);
  color: var(--heading-color-primary);
}

/* ============================================
   PROJECT CARDS SECTION — Minimalist Premium
   ============================================ */

.project-cards-section {
  margin-top: 80px;
}

.project-cards-section .section-title {
  font-size: var(--h3-font-size);
  font-weight: var(--h3-font-weight);
  color: var(--heading-color-primary);
}

/* 3 columns × 2 rows for 6 cards */
.project-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  perspective: 1500px;
}

/* ============================================
   FLIP CARD — CARD SHELL
   ============================================ */
.project-card {
  position: relative;
  height: 420px;
  perspective: 1200px;

  border: 2px solid var(--border-color-secondary);
  border-radius: 16px;
}

/* Rotating inner wrapper */
.project-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}

/* Flip trigger */
.project-card.flipped .project-card-inner {
  transform: rotateY(180deg);
}

/* ============================================
   BOTH FACES — shared minimal shell
   ============================================ */
.project-card-front,
.project-card-back {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;

  box-shadow: 0 6px 24px rgba(74, 14, 92, 0.06);
}

/* ============================================
   FRONT FACE — clean white
   ============================================ */
.project-card-front {
  background: #faf7ff;
}

/* Card image — clean, no overlays */
.project-card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #f7f4fa;
  flex-shrink: 0;
}

.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.project-card-front:hover .project-card-img img {
  transform: scale(1.04);
}

/* Card body */
.project-card-body {
  background-color: var(--bg-color-primary);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}



/* ============================================
   BACK FACE — soft cream, not dark
   ============================================ */
.project-card-back {
  background: var(--bg-color-primary);
  color: var(--text-color-primary);
  transform: rotateY(180deg);
  padding: 32px 26px;
  justify-content: center;
  text-align: center;
  gap: 16px;
}

.project-card-back-title {
  font-size: var(--text-size-primary);
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
  color: var(--text-color-primary);
  letter-spacing: -0.2px;
}

.project-card-info {
  font-size: var(--text-size-secondary);
  line-height: var(--line-height);
  color: var(--text-color-primary);
  margin: 0;
  flex: 1;
  overflow-y: auto;

  scrollbar-width: none;
  -ms-overflow-style: none;
}

.project-card-info::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

/* ============================================
   BUTTONS — Gradient style
   ============================================ */
.project-card-btn {
  align-self: flex-start;
  background: linear-gradient(135deg, #d323ff 0%, #a018d4 100%);
  color: #fff;
  border: none;
  padding: 9px 22px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 14px;
  box-shadow: 0 4px 12px rgba(211, 35, 255, 0.25);
}

.project-card-btn:hover {
  background: linear-gradient(135deg, #e04fff 0%, #b81ce8 100%);
  box-shadow: 0 6px 16px rgba(211, 35, 255, 0.4);
  transform: translateY(-1px);
}

.project-card-back .project-card-btn {
  background: linear-gradient(135deg, #d323ff 0%, #a018d4 100%);
  color: #fff;
  align-self: flex-start;
  box-shadow: 0 4px 12px rgba(211, 35, 255, 0.25);
}

.project-card-back .project-card-btn:hover {
  background: linear-gradient(135deg, #e04fff 0%, #b81ce8 100%);
  box-shadow: 0 6px 16px rgba(211, 35, 255, 0.4);
  transform: translateY(-1px);
}

/* ============================================
   🥇🥈🥉 RANK GRADIENTS — Shiny Metallic
   ============================================ */

/* Make project-row relative for badge positioning */
.project-row {
  position: relative;
}

/* ============================================
   🥇 GOLD — 1st Place (Shiny & Rich)
   ============================================ */
.project-row.rank-gold {
  background-color: var(--bg-color-primary);

  /* Golden shiny gradient border */
  border: 3px solid transparent;
  background-image:
    linear-gradient(var(--bg-color-primary), var(--bg-color-primary)),
    linear-gradient(135deg,
      #b8860b 0%,
      #ffd700 25%,
      #fff3a0 50%,
      #ffd700 75%,
      #b8860b 100%);
  background-origin: border-box;
  background-clip: padding-box, border-box;

  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.project-row.rank-silver {
  background-color: var(--bg-color-primary);

  /* Silver shiny gradient border */
  border: 3px solid transparent;
  background-image:
    linear-gradient(var(--bg-color-primary), var(--bg-color-primary)),
    linear-gradient(135deg,
      #6b7280 0%,
      #d1d5db 25%,
      #ffffff 50%,
      #d1d5db 75%,
      #6b7280 100%);
  background-origin: border-box;
  background-clip: padding-box, border-box;

  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* ============================================
   🥉 BRONZE — 3rd Place (Warm Copper)
   ============================================ */
.project-row.rank-bronze {
  background-color: var(--bg-color-primary);

  /* Bronze shiny gradient border */
  border: 3px solid transparent;
  background-image:
    linear-gradient(var(--bg-color-primary), var(--bg-color-primary)),
    linear-gradient(135deg,
      #7a4a1e 0%,
      #c47e3d 25%,
      #f0b885 50%,
      #c47e3d 75%,
      #7a4a1e 100%);
  background-origin: border-box;
  background-clip: padding-box, border-box;

  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* ============================================
   🏅 RANK BADGE — matching shiny colors
   ============================================ */
/* ============================================
   🏅 RANK BADGE — centered on top border
   ============================================ */
.rank-badge {
  position: absolute;
  top: 0;                        /* align to top edge */
  left: 50%;
  transform: translate(-50%, -50%);   /* pull up by half its height → sits on the border */
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  border-radius: 20px;
  color: #fff;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  white-space: nowrap;
}

/* 🥇 Gold — softer */
.rank-gold .rank-badge {
  background: linear-gradient(135deg, #e6c86a, #c9a53c);
  color: #4a3810;
  box-shadow: 0 4px 12px rgba(200, 165, 60, 0.3);
}

/* 🥈 Silver — softer */
.rank-silver .rank-badge {
  background: linear-gradient(135deg, #d4d9e0, #a3aab5);
  color: #2d3441;
  box-shadow: 0 4px 12px rgba(160, 168, 180, 0.3);
}

/* 🥉 Bronze — softer */
.rank-bronze .rank-badge {
  background: linear-gradient(135deg, #d9a678, #a56a3a);
  color: #3a1f00;
  box-shadow: 0 4px 12px rgba(170, 115, 60, 0.3);
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 992px) {
  .project-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .project-card {
    height: 400px;
  }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 640px) {
  .project-cards-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .project-cards-section {
    margin-top: 50px;
  }

  .project-cards-section .section-title {
    font-size: 1.5rem;
  }

  .project-card-title {
    font-size: 1.05rem;
  }

  .project-card {
    height: 380px;
  }

  /* Badge adjusts on mobile */
 /* Badge adjusts on mobile — stays centered on top border */
.rank-badge {
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 5px 12px;
  font-size: 0.7rem;
  letter-spacing: 0.2px;
}
}

/* 3 columns × 2 rows for 6 cards */
.project-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  perspective: 1500px;
}

/* ============================================
   FLIP CARD — CARD SHELL
   ============================================ */
.project-card {
  position: relative;
  height: 420px;
  perspective: 1200px;

  border: 2px solid var(--border-color-secondary);
  border-radius: 16px;
}

/* Rotating inner wrapper */
.project-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}

/* Flip trigger */
.project-card.flipped .project-card-inner {
  transform: rotateY(180deg);
}

/* ============================================
   BOTH FACES — shared minimal shell
   ============================================ */
.project-card-front,
.project-card-back {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;

  /* ✨ Soft premium shadow (barely there) */
  box-shadow: 0 6px 24px rgba(74, 14, 92, 0.06);

  /* ✨ Gradient border trick — thin purple accent */
  /* border: 1px solid transparent;
  background-origin: border-box;
  background-clip: padding-box, border-box; */
}

/* ============================================
   FRONT FACE — clean white
   ============================================ */
.project-card-front {
  background: #faf7ff;
}

/* Card image — clean, no overlays */
.project-card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #f7f4fa;
  flex-shrink: 0;
}

.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.project-card-front:hover .project-card-img img {
  transform: scale(1.04);
}

/* Card body */
.project-card-body {
  background-color: var(--bg-color-primary);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-card-school {
  font-size: var(--text-size-small);
  color: var(--blue-accent);
  font-weight: 500;
  margin: 0 0 8px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.project-card-title {
  font-size: var(--text-size-primary);
  font-weight: var(--h5-font-weight);
  color: var(--heading-color-primary);
  margin: 0 0 auto;
  line-height: 1.35;
  letter-spacing: -0.2px;
}

/* ============================================
   BACK FACE — soft cream, not dark
   ============================================ */
.project-card-back {
  background: var(--bg-color-primary);
  color: var(--text-color-primary);
  transform: rotateY(180deg);
  padding: 32px 26px;
  justify-content: center;
  text-align: center;
  gap: 16px;
}


.project-card-info {
  font-size: var(--text-size-secondary);
  line-height: var(--line-height);
  color: var(--text-color-primary);
  margin: 0;
  flex: 1;
  overflow-y: auto;

  scrollbar-width: none;        /* Firefox */
  -ms-overflow-style: none;     /* IE / Edge */
}

/* ✨ Hide scrollbar — Chrome / Safari / Edge */
.project-card-info::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

/* ============================================
   BUTTONS — minimal with gradient border
   ============================================ */
/* ============================================
   BUTTONS — Gradient style
   ============================================ */
.project-card-btn {
  align-self: flex-start;
  background: linear-gradient(135deg, #d323ff 0%, #a018d4 100%);
  color: #fff;
  border: none;
  padding: 9px 22px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 14px;
  box-shadow: 0 4px 12px rgba(211, 35, 255, 0.25);
}

.project-card-btn:hover {
  background: linear-gradient(135deg, #e04fff 0%, #b81ce8 100%);
  box-shadow: 0 6px 16px rgba(211, 35, 255, 0.4);
  transform: translateY(-1px);
}

/* Back button variant */
.project-card-back .project-card-btn {
  background: linear-gradient(135deg, #d323ff 0%, #a018d4 100%);
  color: #fff;
  align-self: flex-start;
  box-shadow: 0 4px 12px rgba(211, 35, 255, 0.25);
}

.project-card-back .project-card-btn:hover {
  background: linear-gradient(135deg, #e04fff 0%, #b81ce8 100%);
  box-shadow: 0 6px 16px rgba(211, 35, 255, 0.4);
  transform: translateY(-1px);
}


/* ============================================
   FLIPPED CARD — add border on flip
   ============================================ */
/* .project-card.flipped .project-card-front,
.project-card.flipped .project-card-back {
  border: 2px solid #d323ff;
} */
/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 992px) {
  .project-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .project-card {
    height: 400px;
  }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 640px) {
  .project-cards-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .project-cards-section {
    margin-top: 50px;
  }

  .project-cards-section .section-title {
    font-size: 1.5rem;
  }

  .project-card-title {
    font-size: 1.05rem;
  }

  .project-card {
    height: 380px;
  }
}