/* ============================================================
   COMPONENTS.CSS — Split-flap tiles, cards, boarding pass,
                    luggage tags
   ============================================================ */

/* ============================================================
   SPLIT-FLAP DISPLAY
   Unified tile style — same design language as About section.
   No board panel wrapper; fluid em-based tiles; white text.
   ============================================================ */

.splitflap-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.board-label {
  font-family: 'Courier New', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.55;
}

/* Bare flex row — no panel, no background, no border.
   Sets the em context so tiles scale proportionally. */
.splitflap {
  display: flex;
  gap: 0;              /* tiles carry their own margin: 0 0.03em */
  font-size: clamp(2.5rem, 13vw, 9rem);
}

/* ── Individual tile ────────────────────────────────────── */
.tile {
  display: inline-block;
  position: relative;
  width: 0.75em;
  height: 1.05em;
  margin: 0 0.025em;
  border-radius: 0.045em;
  box-shadow:
    0 6px 24px rgba(0, 0, 0, 0.75),
    0 2px 6px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  perspective: 800px;
}

/* Static background halves */
.sf-top,
.sf-bot {
  position: absolute;
  left: 0;
  right: 0;
  height: 50%;
  overflow: hidden;
}

.sf-top {
  top: 0;
  background: linear-gradient(180deg, #2e2e2e 0%, #222 100%);
  border-radius: 0.045em 0.045em 0 0;
  border-bottom: 1px solid #000;
}

.sf-bot {
  bottom: 0;
  background: linear-gradient(180deg, #1c1c1c 0%, #131313 100%);
  border-radius: 0 0 0.045em 0.045em;
}

/* Animated flap halves */
.sf-flap-top,
.sf-flap-bot {
  position: absolute;
  left: 0;
  right: 0;
  height: 50%;
  overflow: hidden;
  z-index: 3;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.sf-flap-top {
  top: 0;
  transform-origin: center bottom;
  background: linear-gradient(180deg, #2e2e2e 0%, #222 100%);
  border-radius: 0.045em 0.045em 0 0;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.6);
}

.sf-flap-bot {
  bottom: 0;
  transform-origin: center top;
  background: linear-gradient(180deg, #1c1c1c 0%, #131313 100%);
  border-radius: 0 0 0.045em 0.045em;
}

/* Character spans — 200% height trick to show correct half */
.sf-top span,
.sf-flap-top span {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.88em;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  user-select: none;
  pointer-events: none;
}

.sf-bot span,
.sf-flap-bot span {
  position: absolute;
  top: -100%;
  left: 0;
  right: 0;
  height: 200%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.88em;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  user-select: none;
  pointer-events: none;
}

/* Centre split line */
.tile::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: calc(50% - 1px);
  height: 2px;
  background: #000;
  z-index: 10;
  pointer-events: none;
}

/* Hover: subtle brightness lift */
.tile:hover .sf-top,
.tile:hover .sf-flap-top {
  background: linear-gradient(180deg, #383838 0%, #2c2c2c 100%);
}
.tile:hover .sf-bot,
.tile:hover .sf-flap-bot {
  background: linear-gradient(180deg, #252525 0%, #1c1c1c 100%);
}

/* ── Light mode ──────────────────────────────────────────── */
[data-theme="light"] .sf-top,
[data-theme="light"] .sf-flap-top {
  background: linear-gradient(180deg, #282828 0%, #1e1e1e 100%);
}

[data-theme="light"] .sf-bot,
[data-theme="light"] .sf-flap-bot {
  background: linear-gradient(180deg, #1a1a1a 0%, #111 100%);
}

/* ============================================================
   CASE STUDY CARD — cinematic stacked format
   ============================================================ */
.case-study-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  will-change: transform, opacity;
  transform-origin: center top;
  transition: box-shadow var(--t-base), border-color var(--t-fast);
  cursor: pointer;
}

/* Sticky positioning + initial scale — JS animates these */
.cs-sticky {
  position: sticky;
  top: 12vh;
  height: clamp(500px, 70vh, 720px);
  transform: scale(0.82);
  opacity: 0.55;
}

.case-study-card:hover {
  box-shadow: var(--shadow-hover-accent);
  border-color: var(--accent);
}

/* ── Image area ────────────────────────────────────────────── */
.card-image {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: linear-gradient(145deg, #262220 0%, #1a1a1a 100%);
}

/* Per-card image tints */
.cs-wrapper:nth-child(2) .card-image {
  background: linear-gradient(145deg, #1e222e 0%, #141a28 100%);
}
.cs-wrapper:nth-child(3) .card-image {
  background: linear-gradient(145deg, #1c2218 0%, #161d12 100%);
}

[data-theme="light"] .card-image {
  background: linear-gradient(145deg, #d4cfc6, #e8e4dc);
}
[data-theme="light"] .cs-wrapper:nth-child(2) .card-image {
  background: linear-gradient(145deg, #c4ccd8, #d8dfe8);
}
[data-theme="light"] .cs-wrapper:nth-child(3) .card-image {
  background: linear-gradient(145deg, #c8d0c4, #d8e0d4);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0);
  transition: filter 0.4s ease;
}

.case-study-card:hover .card-image img {
  filter: grayscale(1);
}

/* Large watermark number */
.card-number {
  position: absolute;
  bottom: 1.25rem;
  right: 2rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(5rem, 12vw, 10rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.06);
  pointer-events: none;
  user-select: none;
}

[data-theme="light"] .card-number {
  color: rgba(0, 0, 0, 0.06);
}

/* ── Content strip ─────────────────────────────────────────── */
.card-body {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-tags {
  font-family: 'Courier New', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.35rem;
}

.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 2px;
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--t-base), color var(--t-base), border-color var(--t-base);
}

/* Stretched link — ::after covers the entire card (positions relative to .case-study-card) */
.card-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
}

.card-cta:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

[data-theme="light"] .card-cta {
  border-color: rgba(0, 0, 0, 0.22);
}

/* ── Gold Touch: card lifts slightly on hover ─────────────── */
.cs-wrapper:hover .case-study-card {
  transform: translateY(-3px) scale(1.002);
}

@media (max-width: 768px) {
  .cs-sticky {
    position: static;
    height: auto;
    min-height: 420px;
    transform: scale(1) !important;
    opacity: 1 !important;
  }
  .card-body {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
  }
  .card-title {
    white-space: normal;
  }
  .card-number {
    font-size: clamp(3.5rem, 20vw, 6rem);
  }
}

/* ============================================================
   BOARDING PASS
   ============================================================ */
.boarding-pass {
  background: var(--bp-bg);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto 80px;
  border: 1px solid var(--bp-border);
  color: var(--bp-text);
  cursor: default;
  transition: transform var(--t-base), box-shadow var(--t-base);
}

.boarding-pass:hover {
  transform: translateY(-5px) rotate(-0.4deg);
  box-shadow:
    0 20px 56px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(245, 200, 66, 0.35);
}

[data-theme="light"] .boarding-pass:hover {
  box-shadow:
    0 20px 56px rgba(0, 0, 0, 0.10),
    0 0 0 1px rgba(26, 26, 110, 0.30);
}

.bp-main {
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* ── Gold airline stripe ────────────────────────────────────── */
.bp-stripe {
  height: 3px;
  background: linear-gradient(
    90deg,
    #f5c842 0%,
    rgba(245, 200, 66, 0.25) 100%
  );
  margin: -2rem -2rem 1.5rem;
  flex-shrink: 0;
}

[data-theme="light"] .bp-stripe {
  background: linear-gradient(
    90deg,
    #f5c842 0%,
    rgba(245, 200, 66, 0.25) 100%
  );
}

/* ── Flight route visualisation (bottom of card) ───────────── */
.bp-route-vis {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1.5rem;
}

.bp-rv-label {
  font-family: 'Courier New', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #aaa;
  flex-shrink: 0;
}

.bp-rv-track {
  flex: 1;
  position: relative;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bp-rv-track::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    #bbb 0px, #bbb 3px,
    transparent 3px, transparent 8px
  );
  animation: trackScroll 1.8s linear infinite;
}

@keyframes trackScroll {
  from { background-position: 0 0; }
  to   { background-position: 22px 0; }
}

.bp-rv-plane {
  width: 16px;
  height: 16px;
  color: #f5c842;
  background: var(--bp-bg);
  padding: 0 4px;
  position: relative;
  z-index: 1;
  transform: rotate(-45deg);
  opacity: 0.75;
}

[data-theme="light"] .bp-rv-plane {
  color: #1a1a6e;
}

/* ── Boarding stamp ─────────────────────────────────────────── */
.bp-stamp {
  position: absolute;
  top: 4.5rem;
  right: 1.75rem;
  font-family: 'Courier New', monospace;
  font-size: 0.48rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: #f5c842;
  border: 1.5px solid #f5c842;
  padding: 0.22rem 0.55rem;
  transform: rotate(-10deg);
  opacity: 0.3;
  pointer-events: none;
}

[data-theme="light"] .bp-stamp {
  color: #1a1a6e;
  border-color: #1a1a6e;
}

.bp-airline {
  font-family: 'Courier New', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 1.25rem;
}

.bp-route {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.bp-from,
.bp-to {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.bp-code {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--bp-text);
  line-height: 1;
  letter-spacing: -0.03em;
}

.bp-city {
  font-family: 'Courier New', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #888;
}

.bp-arrow {
  font-size: 1.25rem;
  color: #aaa;
  flex-shrink: 0;
}

.bp-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.bp-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.bp-label {
  font-family: 'Courier New', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #999;
}

.bp-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--bp-text);
}

/* Tear line */
.bp-tear {
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--bp-border) 0px,
    var(--bp-border) 6px,
    transparent 6px,
    transparent 12px
  );
  margin: 1rem 0;
}

/* Stub */
.bp-stub {
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  background: #eeede8;
}

[data-theme="light"] .bp-stub {
  background: #e8e7e2;
}

.bp-stub-code {
  font-family: 'Courier New', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bp-text);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

.bp-stub-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--bp-text);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

.bp-barcode {
  width: 36px;
  height: 60px;
  flex-shrink: 0;
  background: repeating-linear-gradient(
    90deg,
    #333 0px, #333 2px,
    transparent 2px, transparent 4px,
    #333 4px, #333 5px,
    transparent 5px, transparent 7px,
    #333 7px, #333 9px,
    transparent 9px, transparent 12px
  );
}

[data-theme="light"] .bp-barcode {
  background: repeating-linear-gradient(
    90deg,
    #222 0px, #222 2px,
    transparent 2px, transparent 4px,
    #222 4px, #222 5px,
    transparent 5px, transparent 7px,
    #222 7px, #222 9px,
    transparent 9px, transparent 12px
  );
}

.bp-footer {
  font-family: 'Courier New', monospace;
  font-size: 0.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #aaa;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  text-align: center;
}

@media (max-width: 600px) {
  .boarding-pass {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .bp-tear {
    width: auto;
    height: 2px;
    margin: 0 1rem;
    background: repeating-linear-gradient(
      to right,
      var(--bp-border) 0px,
      var(--bp-border) 6px,
      transparent 6px,
      transparent 12px
    );
  }
  .bp-stub {
    flex-direction: row;
    writing-mode: horizontal-tb;
    padding: 1rem 1.25rem;
  }
  .bp-stub-code,
  .bp-stub-name,
  .bp-footer {
    writing-mode: horizontal-tb;
    transform: none;
  }
  .bp-barcode {
    width: 60px;
    height: 36px;
    background: repeating-linear-gradient(
      180deg,
      #333 0px, #333 2px,
      transparent 2px, transparent 4px
    );
  }
}

/* ============================================================
   LUGGAGE TAGS
   ============================================================ */
.luggage-tag {
  width: 140px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0 0 8px 8px;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  padding: 1.25rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-fast);
}

.luggage-tag:hover {
  transform: translateY(-4px) rotate(-1deg);
  box-shadow: var(--shadow-hover-accent);
  border-color: var(--accent);
}

.luggage-tag-hole {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--text-secondary);
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
}

.luggage-tag-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.3;
  flex: 1;
  display: flex;
  align-items: center;
}

.luggage-tag-number {
  font-family: 'Courier New', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* ============================================================
   RUNWAY BARS — Skills section
   Minimal horizontal progress strips, aviation-themed
   ============================================================ */

/* Tagline under the heading */
.skills-tagline {
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ── Container ───────────────────────────────────────────── */
.runway-rows {
  margin-top: 3rem;
  border-top: 1px solid var(--border);
}

/* ── Single row ──────────────────────────────────────────── */
.runway-row {
  display: grid;
  grid-template-columns: 52px 220px 1fr 44px 110px;
  align-items: center;
  gap: 0 2rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateX(-16px);
  transition:
    opacity  0.5s ease,
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--delay, 0s);
}

.runway-row.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ── Gate code ───────────────────────────────────────────── */
.rw-gate {
  font-family: 'Courier New', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
}

/* ── Skill name ──────────────────────────────────────────── */
.rw-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Bar track ───────────────────────────────────────────── */
.rw-bar-wrap {
  height: 2px;
  background: var(--border-light);
  border-radius: 2px;
  overflow: hidden;
}

/* ── Bar fill — CSS drives width via --level ─────────────── */
.rw-bar {
  height: 100%;
  width: 0;
  border-radius: 2px;
  background: var(--accent);
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--bar-delay, 0s);
}

.runway-row.is-visible .rw-bar {
  width: calc(var(--level, 0) * 1%);
}

.runway-row[data-status="ontime"] .rw-bar    { background: var(--text-secondary); }
.runway-row[data-status="boarding"] .rw-bar  { background: var(--accent); opacity: 0.38; }

/* ── Value number ────────────────────────────────────────── */
.rw-value {
  font-family: 'Courier New', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-align: right;
}

.runway-row[data-status="expert"] .rw-value  { color: var(--accent); }
.runway-row[data-status="boarding"] .rw-value { opacity: 0.5; }

/* ── Status badge ────────────────────────────────────────── */
.rw-status {
  font-family: 'Courier New', monospace;
  font-size: 0.56rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: 3px;
  justify-self: end;
}

/* ── Status badge variants ───────────────────────────────── */
.fids-expert {
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(245, 200, 66, 0.25);
}

[data-theme="light"] .fids-expert {
  border-color: rgba(26, 26, 110, 0.2);
}

.fids-ontime {
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-light);
}

.fids-boarding {
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(245, 200, 66, 0.25);
  animation: boardingBlink 2s ease-in-out infinite;
}

[data-theme="light"] .fids-boarding {
  border-color: rgba(26, 26, 110, 0.2);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .runway-row {
    grid-template-columns: 44px 1fr 90px;
    gap: 0 1.25rem;
  }
  /* Bar + value hidden on tablet — keep it clean */
  .rw-bar-wrap, .rw-value { display: none; }
  .rw-name { font-size: 0.92rem; white-space: normal; }
}

@media (max-width: 480px) {
  .runway-row { gap: 0 1rem; padding: 0.9rem 0; }
  .rw-gate    { font-size: 0.6rem; }
  .rw-name    { font-size: 0.85rem; }
  .rw-status  { font-size: 0.5rem; padding: 0.18rem 0.4rem; }
}