@import url("../shared/industrial-magazine.css");

/* ==========================================================================
   YIRAN NEXUS · SERVICES ISSUE (CUSTOMIZATION & SANDBOX)
   Full-bleed hero, bridge topology, engine console, terminal slips, ROI.
   ========================================================================== */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 82% -10%, rgba(176, 140, 92, 0.07), transparent 54%),
    radial-gradient(ellipse at 0% 92%, rgba(159, 216, 255, 0.025), transparent 48%);
}
main, .services-foot { position: relative; z-index: 1; }
.brand-cn::after {
  content: "";
  display: inline-block;
  width: 3px;
  height: 3px;
  margin-left: 9px;
  background: var(--bronze);
  vertical-align: 0.5em;
}
.mark { position: relative; display: inline-block; width: 11px; height: 11px; flex: none; }
.mark::before, .mark::after { content: ""; position: absolute; background: var(--bronze); }
.mark::before { left: 5px; top: 0; width: 1px; height: 11px; }
.mark::after { top: 5px; left: 0; width: 11px; height: 1px; }

/* ------------------------------------------------------------------- hero */
.services-hero { justify-content: flex-end; }
.services-issue .band img { filter: contrast(1.06) brightness(0.84); transition: transform 0.8s var(--ease), filter 0.8s var(--ease); }
.services-issue .band:hover img { transform: scale(1.02); filter: contrast(1.08) brightness(0.96); }
.services-hero .hero-inner {
  max-width: none;
  padding-block: clamp(34px, 6vh, 76px) clamp(24px, 4vh, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.88fr);
  align-items: end;
  gap: clamp(26px, 4vw, 58px);
}
.services-hero .hero-title { font-size: clamp(2.45rem, 5.1vw, 4.5rem); max-width: 12ch; margin-top: 16px; }
.services-hero .hero-title em { white-space: nowrap; }
.services-hero .hero-lead { font-size: 13px; max-width: 54ch; }
.hero-meta { margin-top: 14px; font-size: 12px; letter-spacing: 0.04em; color: var(--ink-3); }
.services-hero .hero-ctas { max-width: 640px; }
.engine-links .btn { flex-direction: column; align-items: flex-start; gap: 3px; padding: 13px 17px; text-align: left; }
.engine-links .btn-cap { font-size: 11px; letter-spacing: 0.04em; text-transform: none; opacity: 0.78; }
.services-hero .hero-art { width: 100%; max-width: 470px; justify-self: end; }
.bridge-card {
  position: relative;
  background: rgba(10, 12, 15, 0.72);
  border: 1px solid var(--hairline);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.bridge-card::before, .bridge-card::after { content: ""; position: absolute; width: 14px; height: 14px; pointer-events: none; }
.bridge-card::before { top: -1px; left: -1px; border-top: 1px solid var(--bronze); border-left: 1px solid var(--bronze); }
.bridge-card::after { right: -1px; bottom: -1px; border-right: 1px solid var(--bronze); border-bottom: 1px solid var(--bronze); }
.bridge-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 10px 14px; border-bottom: 1px solid var(--hairline); }
.bridge-name { font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; color: var(--ink-2); }
.bridge-status { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--ok); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); }
.bridge-svg { width: 100%; height: auto; }
.bridge-svg .bridge-frame rect { fill: rgba(10, 12, 15, 0.55); stroke: var(--hairline); stroke-width: 1; }
.bridge-svg .bridge-inner { fill: rgba(14, 17, 22, 0.9); stroke: var(--hairline-soft); }
.bridge-svg .bridge-nodes rect { fill: rgba(14, 17, 22, 0.92); stroke: var(--hairline-soft); }
.bridge-kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; fill: var(--bronze); }
.bridge-title { font-family: var(--serif); font-size: 15px; fill: var(--ink); }
.bridge-sub { font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em; fill: var(--ink); }
.bridge-dim { font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; fill: var(--ink-3); }
.bridge-tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; fill: var(--steel); }
.bridge-node { font-family: var(--serif); font-size: 12px; fill: var(--ink); }
.bridge-flow { fill: none; stroke: var(--bronze-dim); stroke-width: 1; stroke-dasharray: 2 5; animation: bridgeFlow 2.8s linear infinite; }
.bridge-pulse { fill: var(--bronze); animation: bridgePulse 3.2s ease-in-out infinite; }
.bridge-pulse-b { animation-delay: 1.1s; }
.bridge-log { display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-top: 1px solid var(--hairline); font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; color: var(--ink-3); }
.bridge-log-flag { color: var(--bronze); flex: none; }
.bridge-log #live-log-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: opacity 0.2s ease; }
.bridge-log-time { margin-left: auto; color: var(--steel); flex: none; }
.head-actions .btn { flex: none; white-space: nowrap; }
.services-hero .key-metrics-strip { margin-top: 0; }
@keyframes bridgeFlow { to { stroke-dashoffset: -28; } }
@keyframes bridgePulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }

/* -------------------------------------------------------------- bottleneck */
.bottleneck { border-block: 1px solid var(--hairline-soft); background: rgba(14, 17, 22, 0.55); padding: 28px 1px; }
.bottleneck .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.25fr) auto;
  align-items: center;
  gap: clamp(16px, 2.6vw, 36px);
}
.bottleneck h2 { font-family: var(--serif); font-size: clamp(1rem, 1.7vw, 1.25rem); font-weight: 500; line-height: 1.55; margin-top: 7px; text-wrap: balance; }
.bottleneck-grid { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.bottleneck-grid span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--ink-2); }
.bottleneck-grid b { color: var(--bronze); margin-right: 7px; font-weight: 400; }
.bottleneck .btn-toggle { justify-self: end; }
.bottleneck .toggle-panel { grid-column: 1 / -1; margin-top: 0; }

/* ------------------------------------------------------------- engine tabs */
.engine-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-bottom: clamp(24px, 3.5vw, 40px);
}
.engine-switch button { background: var(--bg-2); padding: 15px 18px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em; color: var(--ink-3); text-align: left; transition: background 0.3s ease, color 0.3s ease; }
.engine-switch button:hover { color: var(--ink); }
.engine-switch button[aria-selected="true"] { background: var(--accent); color: var(--bg); }
.engine-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 3.5vw, 44px); align-items: stretch; }
.engine-brief { border-left: 1px solid var(--bronze-dim); padding-left: clamp(16px, 2.4vw, 26px); display: flex; flex-direction: column; }
.engine-title { font-family: var(--serif); font-weight: 500; font-size: clamp(1.35rem, 2.3vw, 1.9rem); line-height: 1.45; margin: 10px 0 12px; }
.engine-desc { font-size: 12.5px; line-height: 1.85; color: var(--ink-2); }
.engine-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.engine-tags span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; border: 1px solid var(--hairline); padding: 4px 8px; color: var(--ink-3); }
.engine-ledger { margin-top: 22px; }
.engine-ledger .row-title { font-size: 15px; }
.engine-ledger .ledger-row { padding-block: 15px; }
#products .toggle-panel { margin-top: 22px; }
#products .toggle-panel + .toggle-panel { margin-top: 12px; }

/* ---------------------------------------------------------- terminal extras */
.terminal-live { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--ok); }
.terminal-hint { padding: 10px 16px 0; font-family: var(--mono); font-size: 12px; line-height: 1.6; letter-spacing: 0.02em; color: var(--ink-3); }
.terminal-tab { line-height: 1.55; }
.services-issue .terminal-output { max-height: 468px; }
.term-prompt { color: var(--steel); margin-bottom: 8px; }
.term-prompt::before { content: "$ "; color: var(--bronze); }
.term-label { color: var(--bronze); }
.term-alert { color: var(--bronze); border: 1px solid var(--bronze-dim); padding: 1px 5px; margin-right: 5px; font-size: 11px; }
.term-agent .role { font-family: var(--mono); }
.term-agent .status { color: var(--ok); }
.term-slip + .term-slip { margin-top: 10px; }
.term-slip .term-status .term-ok { color: var(--ok); }

/* ------------------------------------------------------------------- cases */
button.case-row { width: 100%; text-align: left; transition: background 0.3s ease; }
button.case-row:hover { background: linear-gradient(90deg, rgba(232, 224, 204, 0.035), transparent 78%); }
button.case-row:hover .case-title { color: var(--accent); }
.case-row .case-title { transition: color 0.3s ease; }
.case-meta span + span::before { content: "·"; margin-right: 8px; color: var(--hairline); }
.case-actions .text-link { border-bottom: 0; }
.foot-hint { font-size: 12px; color: var(--ink-3); letter-spacing: 0.04em; }
#cases > .wrap > .toggle-panel { margin-top: 26px; }

/* ---------------------------------------------------------------- ROI strip */
.roi-strip .roi-readout { row-gap: 14px; }
.roi-strip-note { font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em; color: var(--ink-3); margin-top: 12px; }
.roi-strip .btn-toggle { flex: none; }
#roi-calculator .toggle-panel { margin-top: 26px; }

/* -------------------------------------------------------------- contact/promise */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--hairline);
  border-block: 1px solid var(--hairline);
  margin-top: clamp(28px, 4vw, 44px);
}
.promise { background: var(--bg); padding: 22px 20px; }
.promise .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--bronze); }
.promise h3 { font-family: var(--serif); font-size: 18px; font-weight: 500; margin: 8px 0 7px; }
.promise p { font-size: 12px; line-height: 1.8; color: var(--ink-2); }
.contact-cta .mono { font-size: 12px; color: var(--ink-3); letter-spacing: 0.03em; }
#contact .toggle-panel { margin-top: 26px; }

/* ------------------------------------------------------------------- footer */
.site-foot.services-foot { padding-block: 0; font-family: var(--sans); letter-spacing: 0; }
.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 64px);
  padding-block: clamp(30px, 4vw, 46px);
  border-bottom: 1px solid var(--hairline-soft);
}
.foot-title { font-family: var(--serif); font-size: 17px; color: var(--ink); margin-bottom: 12px; }
.services-foot .foot-brand p { font-family: var(--sans); font-size: 12px; line-height: 1.85; color: var(--ink-3); max-width: 58ch; letter-spacing: 0; }
.services-foot .foot-brand .foot-contact { font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; margin-top: 12px; color: var(--ink-2); }
.foot-heading { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--bronze); text-transform: uppercase; margin-bottom: 14px; font-weight: 400; }
.foot-links { display: flex; flex-direction: column; gap: 9px; }
.foot-links a, .foot-links button { font-family: var(--mono); font-size: 11px; letter-spacing: 0.03em; color: var(--ink-3); text-align: left; transition: color 0.25s ease; }
.foot-links a:hover, .foot-links button:hover { color: var(--bronze); }
.foot-base { display: flex; justify-content: space-between; align-items: center; gap: 12px 24px; flex-wrap: wrap; padding-block: 20px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em; color: var(--ink-3); }
.services-foot .icp { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.services-foot .sep { color: var(--hairline); }
.foot-badges { display: flex; flex-wrap: wrap; gap: 16px; color: var(--ink-2); }

/* -------------------------------------------------------------- responsive */
@media (max-width: 1180px) {
  .bottleneck .wrap { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.3fr); }
  .bottleneck .btn-toggle { grid-column: 1 / -1; justify-self: start; }
  .head-actions .clock { display: none; }
}
@media (max-width: 980px) {
  .services-hero .hero-inner { grid-template-columns: 1fr; align-items: start; }
  .services-hero .hero-art { max-width: 560px; justify-self: start; }
  .bridge-svg { max-height: 430px; }
  .engine-grid { grid-template-columns: 1fr; }
  .engine-brief { padding-bottom: 4px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
  .bottleneck .wrap { grid-template-columns: 1fr; }
  .bottleneck .btn-toggle { justify-self: start; white-space: normal; }
}
@media (max-width: 700px) {
  .head-actions .head-link { display: none; }
  .services-hero .hero-title { font-size: clamp(2.35rem, 10.5vw, 3.2rem); max-width: 11ch; }
  .services-hero .hero-lead { font-size: 12.5px; }
  .services-hero .hero-ctas { flex-direction: column; }
  .engine-links .btn { width: 100%; }
  .engine-switch { grid-template-columns: 1fr; }
  .promise-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .case-stats { max-width: none; }
  .bridge-name { font-size: 11px; }
  .bridge-log { flex-wrap: wrap; }
  .bridge-log-time { margin-left: 0; }
  .roi-strip { padding: 18px 16px; }
  .roi-strip .btn-toggle { width: 100%; }
}
@media (max-width: 420px) {
  .bridge-status { margin-left: 0; }
  .terminal-tab { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  .bridge-flow, .bridge-pulse { animation: none !important; }
  .engine-figure img { transition: none; }
}

/* ----------------------------------------------------------- image zoom */
.engine-figure, .band {
  cursor: zoom-in;
  position: relative;
}
.engine-figure img, .band img {
  cursor: zoom-in;
}
.engine-figure.is-zoomed-origin img,
.band.is-zoomed-origin img {
  opacity: 0.01 !important;
}

.image-zoom-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: block;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.36s ease, visibility 0.36s ease;
}
.image-zoom-overlay.is-active {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
  cursor: zoom-out;
}

.image-zoom-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 14, 0.94);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  opacity: 0;
  cursor: zoom-out;
  transition: opacity 0.38s cubic-bezier(0.16, 1, 0.3, 1);
}
.image-zoom-overlay.is-active .image-zoom-backdrop {
  opacity: 1;
}

.image-zoom-view {
  position: fixed;
  z-index: 2;
  margin: 0;
  padding: 0;
  cursor: zoom-out;
  will-change: transform;
}

.image-zoom-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
  border: 1px solid rgba(176, 140, 92, 0.35);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.05);
  cursor: zoom-out;
}

.image-zoom-caption {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 14px);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease 0.08s, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1) 0.08s;
  pointer-events: none;
}
.image-zoom-overlay.is-active .image-zoom-caption {
  opacity: 1;
  transform: translateY(0);
}
.image-zoom-caption .fig-index { color: var(--bronze); font-weight: 600; }
.image-zoom-caption .fig-right { color: var(--ink-3); }

.image-zoom-close {
  position: absolute;
  top: 24px;
  right: 28px;
  z-index: 10;
  width: 38px;
  height: 38px;
  border-radius: 2px;
  background: rgba(18, 22, 28, 0.75);
  border: 1px solid var(--hairline);
  color: var(--ink-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease, border-color 0.2s, color 0.2s;
}
.image-zoom-close:hover {
  border-color: var(--bronze);
  color: var(--ink-1);
  background: rgba(28, 34, 44, 0.9);
}
.image-zoom-overlay.is-active .image-zoom-close {
  opacity: 1;
  transform: scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .image-zoom-view { transition: none !important; }
  .image-zoom-backdrop { transition: none !important; }
  .image-zoom-caption { transition: none !important; }
}