/* ─── VFD Car Stereo Theme ─────────────────────────────────── */

:root {
  --vfd:       #ff8c00;
  --vfd-hi:    #ffc266;
  --vfd-mid:   #cc6e00;
  --vfd-dim:   #7a3d00;
  --vfd-ghost: #2b1500;
  --panel:     #0e0700;
  --border:    rgba(255, 140, 0, .16);
  --border-hi: rgba(255, 140, 0, .44);
  --gs: 0 0 6px  rgba(255, 140, 0, .55);
  --gm: 0 0 8px  rgba(255, 140, 0, .6),  0 0 22px rgba(255, 140, 0, .25);
  --gl: 0 0 6px  var(--vfd),
        0 0 18px rgba(255, 140, 0, .52),
        0 0 40px rgba(255, 140, 0, .22);
  --r: 10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 18px; }

body {
  font-family: "Noto Sans TC", sans-serif;
  color: var(--vfd-mid);
  background: #050505;
  background-image:
    radial-gradient(ellipse 60% 40% at 15% 10%, rgba(80, 35, 0, .15) 0%, transparent 100%),
    radial-gradient(ellipse 45% 35% at 85% 90%, rgba(60, 25, 0, .10) 0%, transparent 100%);
  min-height: 100vh;
}

/* ── CRT scan-line overlay ── */
.crt-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0px, transparent 3px,
    rgba(0, 0, 0, .15) 3px, rgba(0, 0, 0, .15) 4px
  );
}

/* ── Shell ── */
.page-shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 52px;
  display: grid;
  gap: 12px;
}

main { display: grid; gap: 12px; }

/* ── VFD panel ── */
.vfd-panel {
  background-color: var(--panel);
  background-image: radial-gradient(circle, rgba(255, 140, 0, .042) 1px, transparent 1px);
  background-size: 5px 5px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, .9),
    inset 0 1px 0 rgba(255, 140, 0, .07),
    0 6px 32px rgba(0, 0, 0, .7);
  overflow: hidden;
}

/* inner sub-panel */
.vfd-sub {
  background: rgba(255, 140, 0, .028);
  border: 1px solid rgba(255, 140, 0, .1);
  border-radius: 5px;
}

/* ── VFD header bar (mode/track label) ── */
.vfd-hbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 14px;
  background: rgba(255, 140, 0, .052);
  border-bottom: 1px solid rgba(255, 140, 0, .11);
  font-family: "Share Tech Mono", monospace;
  font-size: .67rem;
  letter-spacing: .2em;
}
.vfd-hbar.inner {
  background: rgba(255, 140, 0, .038);
  border-top: none; border-left: none; border-right: none;
  border-radius: 0;
}
.vfd-label { color: var(--vfd-mid); text-shadow: var(--gs); }
.vfd-info  { color: var(--vfd-dim); }

/* ── HEADER / chassis faceplate ── */
.site-header {
  position: sticky;
  top: 10px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 9px 14px;
  border-radius: 7px;
  border: 1px solid #2c2c2c;
  /* brushed metal via two backgrounds */
  background-color: #161616;
  background-image:
    linear-gradient(180deg, #1f1f1f 0%, #101010 100%),
    repeating-linear-gradient(
      90deg,
      transparent, transparent 4px,
      rgba(255, 255, 255, .013) 4px, rgba(255, 255, 255, .013) 8px
    );
  box-shadow:
    0 6px 28px rgba(0, 0, 0, .8),
    inset 0 1px 0 rgba(255, 255, 255, .048),
    inset 0 -1px 0 rgba(0, 0, 0, .55);
}

/* VFD display window inside header */
.header-vfd {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 12px;
  background: var(--panel);
  background-image: radial-gradient(circle, rgba(255, 140, 0, .05) 1px, transparent 1px);
  background-size: 5px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: inset 0 0 16px rgba(0, 0, 0, .85), var(--gs);
  font-family: "Share Tech Mono", monospace;
  font-size: .72rem;
  letter-spacing: .1em;
}
.hv-dot  { color: var(--vfd); text-shadow: var(--gm); font-size: .64rem; }
.brand   {
  font-family: "Orbitron", sans-serif;
  font-size: .8rem; font-weight: 700;
  color: var(--vfd); text-shadow: var(--gm);
  text-decoration: none; letter-spacing: .14em;
}
.hv-sep   { color: rgba(255, 140, 0, .2); }
.hv-mode  { color: var(--vfd-dim); }
.hv-play  { color: var(--vfd-mid); font-size: .8rem; }
.hv-clock { color: var(--vfd-mid); min-width: 38px; }

/* nav preset buttons */
.site-nav { display: flex; flex-wrap: wrap; gap: 5px; }
.site-nav a {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 12px;
  font-family: "Share Tech Mono", monospace;
  font-size: .74rem; letter-spacing: .07em;
  color: #585858;
  text-decoration: none;
  background: #191919;
  border: 1px solid #2e2e2e;
  border-radius: 4px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), inset 0 -1px 0 rgba(0,0,0,.35);
  transition: color 150ms, border-color 150ms, background 150ms;
}
.site-nav a .pn { font-size: .6rem; color: #3a3a3a; }
.site-nav a:hover,
.site-nav a.active {
  color: var(--vfd);
  border-color: var(--border-hi);
  background: #0b100e;
  text-shadow: var(--gs);
}
.site-nav a.active .pn { color: var(--vfd-dim); }

/* ── HERO ── */
.hero { padding: 0; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(240px, .62fr);
}

/* left: name + ticker + buttons */
.hero-main {
  padding: 28px 30px 26px;
  position: relative;
  isolation: isolate;
  border-right: 1px solid rgba(255, 140, 0, .09);
}
/* dot-matrix substrate behind content */
.hero-main::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255, 140, 0, .08) 1px, transparent 1px);
  background-size: 5px 5px;
  pointer-events: none;
  z-index: -1;
}

.h-eyebrow {
  font-family: "Share Tech Mono", monospace;
  font-size: .74rem; letter-spacing: .2em;
  color: var(--vfd-dim);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.h-name {
  font-family: "Orbitron", sans-serif;
  font-size: clamp(2.6rem, 5.5vw, 4.8rem);
  font-weight: 900;
  color: var(--vfd);
  text-shadow: var(--gl);
  letter-spacing: .05em;
  line-height: 1;
  margin-bottom: 22px;
}

/* scrolling VFD ticker */
.ticker-wrap {
  overflow: hidden;
  border: 1px solid rgba(255, 140, 0, .13);
  background: rgba(0, 0, 0, .45);
  border-radius: 3px;
  padding: 8px 0;
  margin-bottom: 24px;
}
.ticker-text {
  display: inline-flex;
  white-space: nowrap;
  animation: ticker 32s linear infinite;
  font-family: "Share Tech Mono", monospace;
  font-size: .79rem;
  color: var(--vfd-mid);
  letter-spacing: .06em;
}

/* hero action buttons */
.h-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.vfd-btn {
  display: inline-flex; align-items: center;
  padding: 10px 20px;
  font-family: "Share Tech Mono", monospace;
  font-size: .82rem; letter-spacing: .1em;
  text-decoration: none; border-radius: 4px;
  transition: all 150ms ease;
}
.vfd-btn.primary {
  color: var(--vfd);
  border: 1px solid var(--vfd-mid);
  background: rgba(255, 140, 0, .08);
  text-shadow: var(--gs);
  box-shadow: var(--gs), inset 0 0 10px rgba(255, 140, 0, .05);
}
.vfd-btn.primary:hover {
  background: rgba(255, 140, 0, .15);
  box-shadow: var(--gm), inset 0 0 14px rgba(255, 140, 0, .07);
}
.vfd-btn.secondary {
  color: var(--vfd-dim);
  border: 1px solid rgba(255, 140, 0, .15);
  background: transparent;
}
.vfd-btn.secondary:hover {
  color: var(--vfd-mid);
  border-color: rgba(255, 140, 0, .3);
}

/* right: EQ display */
.hero-eq {
  display: flex;
  flex-direction: column;
}

/* ── GEQ canvas ── */
.geq-canvas {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 170px;
}
.geq-sm {
  width: 155px;
  height: 44px;
  min-height: 0;
  flex: none;
}

.geq-labels {
  display: flex;
  justify-content: space-between;
  padding: 3px 8px;
  font-family: "Share Tech Mono", monospace;
  font-size: .54rem; letter-spacing: .04em;
  color: var(--vfd-ghost);
  border-top: 1px solid rgba(255, 140, 0, .07);
}

.research-box {
  padding: 13px 14px 15px;
  border-top: 1px solid rgba(255, 140, 0, .1);
}
.rb-tag   { font-family:"Share Tech Mono",monospace; font-size:.62rem; letter-spacing:.18em; color:var(--vfd-dim); margin-bottom:5px; }
.rb-title { font-family:"Share Tech Mono",monospace; font-size:.88rem; color:var(--vfd-mid); text-shadow:var(--gs); margin-bottom:3px; }
.rb-sub   { font-family:"Share Tech Mono",monospace; font-size:.66rem; letter-spacing:.05em; color:var(--vfd-dim); }

/* ── ABOUT grid ── */
.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(230px, .7fr);
  gap: 12px;
}

.card-body { padding: 20px 22px 22px; }

.info-card h2 {
  font-family: "Orbitron", sans-serif;
  font-size: clamp(1.1rem, 2.2vw, 1.65rem);
  color: var(--vfd); text-shadow: var(--gs);
  letter-spacing: .03em; line-height: 1.3;
  margin-bottom: 12px;
}
.info-card p {
  font-size: .93rem;
  color: var(--vfd-dim);
  line-height: 1.95;
}

.metric-row {
  padding: 11px 0;
  border-bottom: 1px solid rgba(255, 140, 0, .07);
}
.metric-row:last-child { border-bottom: none; }
.m-label {
  font-family: "Share Tech Mono", monospace;
  font-size: .64rem; letter-spacing: .16em;
  color: var(--vfd-dim); text-transform: uppercase;
  margin-bottom: 3px;
}
.m-val {
  font-family: "Orbitron", sans-serif;
  font-size: 1.15rem; font-weight: 600;
  color: var(--vfd); text-shadow: var(--gs);
  letter-spacing: .07em;
}

/* ── SECTIONS ── */
.section { padding: 0; }

.section-heading { padding: 18px 22px 14px; }
.sec-h2 {
  font-family: "Orbitron", sans-serif;
  font-size: clamp(1.25rem, 2.4vw, 1.85rem); font-weight: 700;
  color: var(--vfd); text-shadow: var(--gs); letter-spacing: .04em;
}

.section-title-row {
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 14px; padding: 18px 22px 14px;
}

/* ── SKILLS ── */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 140, 0, .07);
  border-top: 1px solid rgba(255, 140, 0, .07);
}
.skill-card {
  background: var(--panel);
  background-image: radial-gradient(circle, rgba(255,140,0,.035) 1px, transparent 1px);
  background-size: 5px 5px;
  padding: 18px 22px 20px;
}
.sk-bar-wrap {
  height: 3px;
  background: rgba(255, 140, 0, .09);
  border-radius: 2px; overflow: hidden;
  margin-bottom: 11px;
}
.sk-bar {
  height: 100%; width: var(--bh, 50%);
  background: linear-gradient(90deg, var(--vfd-dim), var(--vfd));
  box-shadow: var(--gs);
  border-radius: 2px;
}
.sk-h3 {
  font-family: "Share Tech Mono", monospace;
  font-size: .77rem; letter-spacing: .14em;
  color: var(--vfd-mid); text-shadow: var(--gs);
  text-transform: uppercase; margin-bottom: 12px;
}
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.chip-list li {
  padding: 4px 10px;
  font-family: "Share Tech Mono", monospace;
  font-size: .71rem; letter-spacing: .07em;
  color: var(--vfd-dim);
  border: 1px solid rgba(255, 140, 0, .13);
  border-radius: 2px;
  background: rgba(255, 140, 0, .032);
  transition: color 180ms, border-color 180ms;
}
.chip-list li:hover {
  color: var(--vfd-mid);
  border-color: rgba(255, 140, 0, .32);
  text-shadow: var(--gs);
}

/* ── PROJECT ── */
.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(250px, .8fr);
  gap: 12px;
  padding: 0 20px 20px;
}
.project-summary { padding: 16px; display: grid; gap: 12px; }
.project-summary p,
.project-point p {
  font-size: .9rem; color: var(--vfd-dim); line-height: 1.95;
}
.project-points { display: grid; gap: 10px; }
.project-point  { padding: 14px 16px; }
.project-point h3 {
  font-family: "Share Tech Mono", monospace;
  font-size: .76rem; letter-spacing: .1em;
  color: var(--vfd-mid); margin-bottom: 7px;
}

/* ── TIMELINE ── */
.timeline { display: grid; gap: 8px; padding: 0 20px 20px; }
.timeline-item {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px; align-items: start;
}
.tl-year {
  font-family: "Orbitron", sans-serif;
  font-size: .85rem; font-weight: 700;
  color: var(--vfd); text-shadow: var(--gs);
  padding-top: 14px; letter-spacing: .06em;
}
.timeline-content { padding: 14px 18px; }
.timeline-content h3 {
  font-family: "Share Tech Mono", monospace;
  font-size: .77rem; letter-spacing: .06em;
  color: var(--vfd-mid); margin-bottom: 7px; line-height: 1.45;
}
.timeline-content p {
  font-size: .87rem; color: var(--vfd-dim); line-height: 1.9;
}

/* ── tl-year-block & work experience extras ── */
.tl-year-block {
  padding-top: 14px;
}
.tl-period {
  font-family: "Share Tech Mono", monospace;
  font-size: .65rem;
  color: var(--vfd-dim);
  letter-spacing: .08em;
  margin-top: 3px;
}
.tl-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 7px;
}
.tl-tag {
  font-family: "Share Tech Mono", monospace;
  font-size: .62rem;
  letter-spacing: .1em;
  color: var(--vfd-dim);
  border: 1px solid rgba(255,140,0,.12);
  border-radius: 2px;
  padding: 2px 7px;
  white-space: nowrap;
}
.tl-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.tl-chips span {
  font-family: "Share Tech Mono", monospace;
  font-size: .68rem;
  letter-spacing: .07em;
  color: var(--vfd-dim);
  border: 1px solid rgba(255,140,0,.13);
  border-radius: 2px;
  padding: 3px 9px;
  background: rgba(255,140,0,.03);
}

/* ── CERTIFICATES ── */
.certificate-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px; padding: 0 20px 20px;
}
.certificate-card { padding: 18px 20px; }
.cert-tag {
  font-family: "Share Tech Mono", monospace;
  font-size: .64rem; letter-spacing: .18em;
  color: var(--vfd-dim); text-transform: uppercase;
  margin-bottom: 7px;
}
.certificate-card h3 {
  font-family: "Share Tech Mono", monospace;
  font-size: .84rem; letter-spacing: .05em;
  color: var(--vfd-mid); text-shadow: var(--gs);
  line-height: 1.45;
}

/* ── CONTACT ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 0 20px 20px;
}
.contact-card {
  padding: 24px 26px;
  text-decoration: none;
  display: block;
  transition: border-color 160ms, background 160ms;
}
.contact-card:hover {
  border-color: var(--border-hi);
  background: rgba(255, 140, 0, .055);
}
.contact-type {
  font-family: "Share Tech Mono", monospace;
  font-size: .65rem; letter-spacing: .18em;
  color: var(--vfd-dim); text-transform: uppercase;
  margin-bottom: 8px;
}
.contact-value {
  font-family: "Share Tech Mono", monospace;
  font-size: 1rem; letter-spacing: .06em;
  color: var(--vfd); text-shadow: var(--gs);
}

/* ── MIC button ── */
.eq-hbar-right {
  display: flex; align-items: center; gap: 8px;
}
.mic-btn {
  font-family: "Share Tech Mono", monospace;
  font-size: .62rem; letter-spacing: .14em;
  color: var(--vfd-dim);
  background: transparent;
  border: 1px solid rgba(255, 140, 0, .18);
  border-radius: 3px;
  padding: 2px 7px;
  cursor: pointer;
  transition: color 150ms, border-color 150ms, text-shadow 150ms;
  line-height: 1.6;
}
.mic-btn:hover {
  color: var(--vfd-mid);
  border-color: var(--border-hi);
}
.mic-btn.active {
  color: var(--vfd);
  border-color: var(--vfd-mid);
  text-shadow: var(--gs);
  animation: blink-slow 1.2s step-end infinite;
}

/* ── FOOTER ── */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
}
.ft-status {
  font-family: "Share Tech Mono", monospace;
  font-size: .68rem; letter-spacing: .14em;
  color: var(--vfd); text-shadow: var(--gs);
  margin-bottom: 3px;
}
.site-footer p {
  font-family: "Share Tech Mono", monospace;
  font-size: .72rem; letter-spacing: .09em; color: var(--vfd-dim);
}
.ft-year {
  font-family: "Orbitron", sans-serif;
  font-size: .8rem; color: var(--vfd-dim);
}

/* ── REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 480ms ease, transform 480ms ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ── KEYFRAMES ── */
@keyframes blink-slow {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}
.blink-slow { animation: blink-slow 1.4s step-end infinite; }

@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── RESPONSIVE ── */
@media (max-width: 980px) {
  .hero-grid,
  .intro-grid,
  .project-layout,
  .contact-grid { grid-template-columns: 1fr; }
  .hero-main { border-right: none; border-bottom: 1px solid rgba(255,140,0,.09); }
  /* 平板：EQ 壓縮為一條窄帶，隱藏 research box */
  .hero-eq { max-height: 140px; overflow: hidden; }
  #geq-main { height: 80px; min-height: 0; flex: none; }
  .research-box { display: none; }
  .skill-groups { grid-template-columns: 1fr; }
  .certificate-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; gap: 10px; text-align: center; }
}

@media (max-width: 600px) {
  /* 手機：直接隱藏 EQ 面板，版面乾淨 */
  .hero-eq { display: none; }
}

@media (max-width: 720px) {
  .page-shell { width: calc(100% - 14px); padding-top: 10px; }
  .site-header { position: static; }
  .h-name { font-size: clamp(2.2rem, 10vw, 3rem); }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
  .tl-year { padding-top: 0; }
  .section-title-row { flex-direction: column; align-items: flex-start; }
  .geq-sm { display: none; }
}