/* ============================================================
   sbom.study — Avant-garde / Gold-black luxury / Bokeh + Sharp angles
   Palette:
     #0A0A0A  Lab Black           (primary background)
     #C8A040  Research Gold       (primary accent)
     rgba(200,160,64,0.12)        Bokeh Amber
     #E8E4DC  Analysis White      (text)
     #A0A8B0  Sharp Platinum      (secondary)
     #141414  Deep Surface        (raised cards)
     rgba(200,160,64,0.25)        Focus Gold
   ============================================================ */

:root {
  --lab-black:       #0A0A0A;
  --research-gold:   #C8A040;
  --bokeh-amber:     rgba(200,160,64,0.12);
  --analysis-white:  #E8E4DC;
  --sharp-platinum:  #A0A8B0;
  --deep-surface:    #141414;
  --focus-gold:      rgba(200,160,64,0.25);
  --gold-soft:       rgba(200,160,64,0.55);
  --gold-line:       rgba(200,160,64,0.32);
  --hairline:        rgba(232,228,220,0.08);

  --f-headline: 'Syne', 'Inter', sans-serif;
  --f-body:     'Inter', system-ui, sans-serif;
  --f-mono:     'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--lab-black);
  color: var(--analysis-white);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  /* faint film grain overlay */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  background-image:
    radial-gradient(circle at 25% 15%, rgba(232,228,220,0.012) 0 1px, transparent 1px),
    radial-gradient(circle at 75% 65%, rgba(232,228,220,0.012) 0 1px, transparent 1px);
  background-size: 3px 3px, 4px 4px;
  mix-blend-mode: overlay;
  opacity: 0.7;
}

::selection { background: var(--research-gold); color: var(--lab-black); }

/* ============================================================
   Shared
   ============================================================ */

.section-eyebrow {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--research-gold);
  padding: 6px 12px 6px 0;
  border-bottom: 1px solid var(--gold-line);
  margin-bottom: 28px;
}

.kinetic {
  font-family: var(--f-headline);
  font-weight: 700;
  letter-spacing: -0.02em;
  animation: kinetic 4s ease-in-out infinite;
}

@keyframes kinetic {
  0%, 100% { letter-spacing: -0.02em; font-weight: 700; }
  50%      { letter-spacing: 0em;     font-weight: 800; }
}

/* ============================================================
   Bokeh field generator (used in portal, analysis, footer)
   ============================================================ */

.bokeh-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.bokeh-field .bokeh {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
    rgba(200,160,64,0.55) 0%,
    rgba(200,160,64,0.18) 40%,
    rgba(200,160,64,0)    72%);
  filter: blur(2px);
  opacity: 0;
  transform: scale(0.6);
  animation: bokeh-fade-in 1.1s cubic-bezier(.2,.7,.2,1) forwards,
             bokeh-drift 16s ease-in-out infinite alternate;
}

@keyframes bokeh-fade-in {
  to { opacity: 1; transform: scale(1); }
}

@keyframes bokeh-drift {
  0%   { translate: 0 0; }
  50%  { translate: 18px -22px; }
  100% { translate: -14px 12px; }
}

/* ============================================================
   1. RESEARCH PORTAL
   ============================================================ */

.portal {
  position: relative;
  height: 100vh;
  min-height: 720px;
  background: radial-gradient(ellipse at 35% 40%,
                #161108 0%,
                #0A0A0A 55%,
                #050505 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portal-frame {
  position: absolute;
  inset: 6vh 5vw;
  width: calc(100% - 10vw);
  height: calc(100% - 12vh);
  z-index: 1;
  pointer-events: none;
}

.portal-frame .frame-shape {
  fill: none;
  stroke: var(--research-gold);
  stroke-width: 1.4;
  stroke-dasharray: 5800;
  stroke-dashoffset: 5800;
  animation: frame-draw 1.2s cubic-bezier(.4,.0,.2,1) 200ms forwards;
  filter: drop-shadow(0 0 18px var(--focus-gold));
}

.portal-frame .frame-tick {
  stroke: var(--research-gold);
  stroke-width: 2;
  opacity: 0;
  animation: tick-in 600ms ease 1100ms forwards;
}

@keyframes frame-draw {
  to { stroke-dashoffset: 0; }
}

@keyframes tick-in {
  to { opacity: 1; }
}

.portal-tilt {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 6vw;
  max-width: 1100px;
  width: 100%;
  transform-style: preserve-3d;
  transform: perspective(1200px)
             rotateY(calc(var(--mx,0) * 3deg))
             rotateX(calc(var(--my,0) * -3deg));
  transition: transform 320ms ease-out;
}

.portal-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sharp-platinum);
  padding: 6px 14px;
  border: 1px solid var(--hairline);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  margin-bottom: 28px;
  opacity: 0;
  animation: fade-up 700ms ease 600ms forwards;
}

.meta-dot {
  width: 6px; height: 6px;
  background: var(--research-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--research-gold);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1;   transform: scale(1);    }
  50%      { opacity: 0.4; transform: scale(0.65); }
}

.wordmark {
  font-size: clamp(48px, 9vw, 132px);
  line-height: 0.95;
  color: var(--analysis-white);
  margin-bottom: 28px;
  display: inline-block;
  user-select: none;
}

.wm-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(28px) rotateX(-30deg);
  animation: wm-in 700ms cubic-bezier(.2,.7,.2,1) forwards;
}

.wm-dot {
  color: var(--research-gold);
  text-shadow: 0 0 24px var(--focus-gold);
}

@keyframes wm-in {
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.portal-subtitle {
  font-family: var(--f-body);
  font-size: clamp(15px, 1.3vw, 18px);
  font-weight: 300;
  color: var(--analysis-white);
  opacity: 0;
  max-width: 640px;
  margin: 0 auto 44px;
  line-height: 1.7;
  animation: fade-up 800ms ease 1500ms forwards;
}

.portal-subtitle em {
  color: var(--research-gold);
  font-style: italic;
  font-family: var(--f-headline);
}

.portal-data {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  max-width: 880px;
  margin: 0 auto;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  opacity: 0;
  animation: fade-up 800ms ease 1800ms forwards;
}

.data-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 14px 18px;
  border-right: 1px solid var(--hairline);
  font-family: var(--f-mono);
  font-size: 12px;
}

.data-row:last-child { border-right: none; }

.data-key {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--sharp-platinum);
  font-size: 10px;
}

.data-val {
  color: var(--analysis-white);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.pulse {
  width: 7px; height: 7px;
  background: var(--research-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--focus-gold);
  animation: ring 1.6s ease-out infinite;
}

@keyframes ring {
  0%   { box-shadow: 0 0 0 0 var(--focus-gold); }
  100% { box-shadow: 0 0 0 12px rgba(200,160,64,0); }
}

.portal-corners .corner {
  position: absolute;
  width: 22px; height: 22px;
  border: 1px solid var(--research-gold);
  z-index: 2;
}
.corner.tl { top: 6vh; left: 5vw; border-right: none; border-bottom: none; }
.corner.tr { top: 6vh; right: 5vw; border-left: none; border-bottom: none; }
.corner.bl { bottom: 6vh; left: 5vw; border-right: none; border-top: none; }
.corner.br { bottom: 6vh; right: 5vw; border-left: none; border-top: none; }

.portal-index {
  position: absolute;
  bottom: 3vh;
  left: 5vw;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--sharp-platinum);
}
.idx-num   { color: var(--research-gold); font-size: 13px; }
.idx-rule  { width: 60px; height: 1px; background: var(--gold-line); }

/* ============================================================
   2. STUDY PORTFOLIO
   ============================================================ */

.portfolio {
  position: relative;
  padding: 140px 5vw 120px;
  background: var(--lab-black);
}

.section-head {
  max-width: 720px;
  margin-bottom: 72px;
}

.section-title {
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.05;
  color: var(--analysis-white);
  margin-bottom: 18px;
}

.section-lede {
  font-size: 17px;
  font-weight: 300;
  color: var(--sharp-platinum);
  max-width: 560px;
  line-height: 1.7;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(250px, auto);
  gap: 16px;
}

.card {
  position: relative;
  padding: 32px 28px 28px;
  background: var(--deep-surface);
  border: 1px solid var(--gold-line);
  color: var(--analysis-white);
  overflow: hidden;
  cursor: crosshair;
  /* Sharp-angle clip on top-right corner */
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
  transform-style: preserve-3d;
  transform: perspective(800px)
             rotateY(calc(var(--mx,0) * 3deg))
             rotateX(calc(var(--my,0) * -3deg));
  transition: transform 280ms ease-out, border-color 200ms;
}

.card.feat   { grid-column: span 2; grid-row: span 2; padding: 44px 40px 36px; }
.card.tall   { grid-row: span 2; }
.card.wide   { grid-column: span 2; }

.card::before {
  /* gold corner accent */
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 48px;
  height: 48px;
  background:
    linear-gradient(225deg,
      var(--research-gold) 0%,
      var(--research-gold) 40%,
      transparent 41%);
  opacity: 0.65;
  pointer-events: none;
}

.card:hover {
  border-color: var(--research-gold);
}

.card-bokeh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 90%, var(--bokeh-amber) 0%, transparent 50%),
    radial-gradient(circle at 12% 30%, rgba(200,160,64,0.05) 0%, transparent 45%);
  opacity: 0.65;
  pointer-events: none;
  z-index: 0;
  transition: opacity 300ms;
}

.card:hover .card-bokeh { opacity: 1; }

.card > * { position: relative; z-index: 1; }

.card-tag {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--research-gold);
  margin-bottom: 18px;
}

.card-title {
  font-family: var(--f-headline);
  font-weight: 700;
  font-size: clamp(20px, 1.7vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--analysis-white);
  margin-bottom: 14px;
}

.card.feat .card-title {
  font-size: clamp(28px, 2.6vw, 42px);
  margin-bottom: 22px;
}

.card-body {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sharp-platinum);
  margin-bottom: 18px;
  font-weight: 300;
}

.card.feat .card-body { font-size: 16px; max-width: 540px; }

.card-tokens {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.card-tokens li {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  background: rgba(200,160,64,0.06);
  border: 1px solid var(--gold-line);
  color: var(--research-gold);
  clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px);
}

.card-code {
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--analysis-white);
  background: var(--lab-black);
  border-left: 2px solid var(--research-gold);
  padding: 10px 14px;
  margin-top: 6px;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: thin;
}

.card-arrow {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--research-gold);
  margin-top: 18px;
  text-transform: uppercase;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 240ms, transform 240ms;
}

.card:hover .card-arrow { opacity: 1; transform: translateX(0); }

/* ============================================================
   3. DEEP ANALYSIS
   ============================================================ */

.analysis {
  position: relative;
  padding: 160px 5vw;
  background: linear-gradient(180deg, #0A0A0A 0%, #0D0903 50%, #0A0A0A 100%);
  overflow: hidden;
}

.analysis-bokeh { z-index: 0; }

.analysis-frame {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 56px 72px;
  background: rgba(10,10,10,0.65);
  border: 1px solid var(--gold-line);
  /* Sharp-angle frame: cut top-left and bottom-right */
  clip-path: polygon(
    44px 0, 100% 0, 100% calc(100% - 44px),
    calc(100% - 44px) 100%, 0 100%, 0 44px);
  backdrop-filter: blur(2px);
}

.analysis-frame::before,
.analysis-frame::after {
  content: "";
  position: absolute;
  width: 30px; height: 30px;
  border: 1px solid var(--research-gold);
}
.analysis-frame::before { top: 18px; right: 18px; border-left: none; border-bottom: none; }
.analysis-frame::after  { bottom: 18px; left: 18px; border-right: none; border-top: none; }

.analysis-title {
  font-size: clamp(40px, 5.5vw, 84px);
  line-height: 1.02;
  color: var(--analysis-white);
  margin: 12px 0 56px;
  letter-spacing: -0.025em;
}

.title-accent {
  color: var(--research-gold);
  font-style: italic;
  font-weight: 800;
}

.analysis-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 56px;
  margin-bottom: 56px;
}

.analysis-text p {
  font-size: 17px;
  line-height: 1.85;
  color: var(--analysis-white);
  margin-bottom: 22px;
  font-weight: 300;
}

.analysis-text em {
  color: var(--research-gold);
  font-family: var(--f-headline);
  font-style: italic;
  font-weight: 600;
}

.analysis-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.side-panel {
  background: var(--deep-surface);
  border: 1px solid var(--hairline);
  padding: 22px 22px 18px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.panel-label {
  display: block;
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--research-gold);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gold-line);
}

.panel-list {
  list-style: none;
  counter-reset: ord;
}

.panel-list li {
  position: relative;
  padding-left: 28px;
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--analysis-white);
  margin-bottom: 10px;
  counter-increment: ord;
}

.panel-list li::before {
  content: counter(ord, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--research-gold);
  letter-spacing: 0.05em;
}

.panel-stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--f-mono);
  font-size: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--hairline);
}

.panel-stat:last-child { border-bottom: none; }
.stat-key { color: var(--sharp-platinum); text-transform: uppercase; letter-spacing: 0.12em; font-size: 10px; }
.stat-val { color: var(--analysis-white); }

.analysis-code {
  font-family: var(--f-mono);
  font-size: 12.5px;
  line-height: 1.85;
  background: #050505;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--research-gold);
  padding: 24px 28px;
  white-space: pre;
  overflow-x: auto;
  color: var(--analysis-white);
}

.analysis-code .code-line { display: block; }
.code-mute { color: var(--sharp-platinum); }
.code-add  { color: var(--research-gold); }
.code-rem  { color: #c08080; }

/* ============================================================
   4. LAB FOOTER
   ============================================================ */

.lab-footer {
  position: relative;
  padding: 110px 5vw 50px;
  background: #050505;
  border-top: 1px solid var(--gold-line);
  /* sharp-angle border on top */
  clip-path: polygon(0 30px, 60px 0, 100% 0, 100% 100%, 0 100%);
  overflow: hidden;
}

.footer-bokeh {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 20%,  rgba(200,160,64,0.10) 0%, transparent 26%),
    radial-gradient(circle at 88% 80%,  rgba(200,160,64,0.08) 0%, transparent 30%),
    radial-gradient(circle at 60% 40%,  rgba(200,160,64,0.05) 0%, transparent 34%);
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 80px;
}

.footer-eyebrow {
  display: block;
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--research-gold);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gold-line);
}

.footer-line {
  font-size: 14.5px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--sharp-platinum);
}

.footer-line.mono {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--analysis-white);
  line-height: 1.85;
}

.footer-list {
  list-style: none;
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 300;
}

.footer-list li {
  padding: 6px 0;
  color: var(--analysis-white);
  border-bottom: 1px solid var(--hairline);
  transition: color 200ms, padding-left 200ms;
}

.footer-list li:last-child { border-bottom: none; }
.footer-list li:hover { color: var(--research-gold); padding-left: 8px; }

.footer-rule {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--gold-line) 14%,
    var(--research-gold) 50%,
    var(--gold-line) 86%,
    transparent 100%);
  margin-bottom: 28px;
}

.footer-base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sharp-platinum);
}

.footer-mark {
  font-family: var(--f-headline);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--analysis-white);
}

/* ============================================================
   Reveal-on-scroll
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 800ms ease, transform 800ms cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1080px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .card.feat   { grid-column: span 2; grid-row: span 2; }
  .card.wide   { grid-column: span 2; }
  .card.tall   { grid-row: span 2; }

  .analysis-cols { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid   { grid-template-columns: repeat(2, 1fr); }
  .analysis-frame { padding: 48px 32px 56px; }
}

@media (max-width: 680px) {
  .portal-frame { inset: 4vh 4vw; }
  .corner.tl, .corner.bl { left: 4vw; }
  .corner.tr, .corner.br { right: 4vw; }

  .grid { grid-template-columns: 1fr; }
  .card.feat, .card.wide, .card.tall { grid-column: auto; grid-row: auto; }

  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-base { flex-direction: column; gap: 12px; align-items: flex-start; }

  .portfolio { padding: 100px 5vw 80px; }
  .analysis  { padding: 100px 5vw; }
  .analysis-frame { padding: 36px 22px 44px; }

  .portal-data { grid-template-columns: 1fr 1fr; }
  .data-row { border-right: none; border-bottom: 1px solid var(--hairline); }
  .data-row:nth-last-child(-n+2) { border-bottom: none; }
}