@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --black: #0a0a0a;
  --white: #fafaf8;
  --purple: #3d00b8;
  --purple-light: #6b21f5;
  --purple-pale: #ede9fe;
  --gold: #d4a017;
  --gold-light: #fbbf24;
  --gold-pale: #fef9c3;
  --crimson: #9b1c1c;
  --teal: #0d4f5c;
  --border: 3px solid var(--black);
  --shadow: 6px 6px 0px var(--black);
  --shadow-lg: 10px 10px 0px var(--black);
  --radius: 0px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

/* NAV */
nav {
  background: var(--black);
  border-bottom: var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-family: 'Space Mono', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-light);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-logo span { color: var(--purple-light); }

.nav-links { display: flex; gap: 0; }

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border: 2px solid transparent;
  transition: all 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links a:hover, .nav-links a.active {
  background: var(--purple);
  border-color: var(--purple-light);
  color: var(--white);
}

/* HERO */
.hero {
  background: var(--purple);
  border-bottom: var(--border);
  padding: 5rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 320px; height: 320px;
  background: var(--gold);
  border: var(--border);
  transform: rotate(15deg);
  opacity: 0.15;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: 10%;
  width: 200px; height: 200px;
  background: var(--purple-light);
  border: var(--border);
  transform: rotate(-8deg);
  opacity: 0.3;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border: 2px solid var(--black);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold-light);
  border-bottom: 4px solid var(--gold);
}

.hero-desc {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  border: var(--border);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow); }
.btn:active { transform: translate(0,0); box-shadow: none; }

.btn-gold { background: var(--gold-light); color: var(--black); box-shadow: 4px 4px 0 var(--black); }
.btn-white { background: var(--white); color: var(--black); box-shadow: 4px 4px 0 var(--black); }
.btn-purple { background: var(--purple); color: var(--white); box-shadow: 4px 4px 0 var(--black); }
.btn-black { background: var(--black); color: var(--white); box-shadow: 4px 4px 0 var(--purple); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); box-shadow: var(--shadow); border-color: var(--white); }

/* BENTO GRID */
.bento-section {
  max-width: 1100px;
  margin: 4rem auto;
  padding: 0 2rem;
}

.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--purple);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 2.5rem;
  line-height: 1.1;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.bento-card {
  background: var(--white);
  border: var(--border);
  padding: 2rem;
  position: relative;
  transition: transform 0.15s, box-shadow 0.15s;
}

.bento-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-lg);
}

.bento-card.col-4 { grid-column: span 4; }
.bento-card.col-6 { grid-column: span 6; }
.bento-card.col-8 { grid-column: span 8; }
.bento-card.col-12 { grid-column: span 12; }

.bento-card.bg-purple { background: var(--purple); color: var(--white); }
.bento-card.bg-gold { background: var(--gold-pale); }
.bento-card.bg-black { background: var(--black); color: var(--white); }
.bento-card.bg-purple-pale { background: var(--purple-pale); }

.card-number {
  font-family: 'Space Mono', monospace;
  font-size: 4rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0.15;
  position: absolute;
  top: 1rem; right: 1.5rem;
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.card-tag {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem;
  border: 2px solid currentColor;
  margin-bottom: 0.75rem;
  opacity: 0.7;
}

.bento-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.5px;
}

.bento-card p {
  font-size: 0.9rem;
  line-height: 1.65;
  opacity: 0.85;
}

/* TIMELINE */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--purple);
}

.timeline-item {
  position: relative;
  padding: 1.5rem 0 1.5rem 2rem;
  border-bottom: 2px dashed rgba(0,0,0,0.1);
}

.timeline-item:last-child { border-bottom: none; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.4rem; top: 1.85rem;
  width: 16px; height: 16px;
  background: var(--gold-light);
  border: 3px solid var(--black);
}

.timeline-year {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.timeline-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.25rem; }
.timeline-item p { font-size: 0.875rem; opacity: 0.75; }

/* FORMAT ANATOMY */
.format-block {
  background: var(--black);
  color: var(--white);
  border: var(--border);
  padding: 2rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  line-height: 2;
  position: relative;
  overflow: hidden;
}

.format-block .line { display: flex; align-items: flex-start; gap: 1.5rem; position: relative; }

.line-num {
  color: rgba(255,255,255,0.25);
  min-width: 2rem;
  text-align: right;
  user-select: none;
  flex-shrink: 0;
}

.line-content { flex: 1; }

.hl-key { color: var(--gold-light); }
.hl-val { color: #a5f3fc; }
.hl-sep { color: rgba(255,255,255,0.4); }
.hl-comment { color: rgba(255,255,255,0.3); font-style: italic; }
.hl-boundary { color: #f9a8d4; }
.hl-encoding { color: #86efac; }

.annotation-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1rem;
}

.ann-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem;
  border: 2px solid var(--black);
  background: var(--white);
}

.ann-dot {
  width: 12px; height: 12px;
  border: 2px solid var(--black);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.ann-item p { font-size: 0.8rem; line-height: 1.5; }
.ann-item strong { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* USE CASES GRID */
.use-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.use-card {
  border: var(--border);
  padding: 1.5rem;
  background: var(--white);
  transition: transform 0.15s, box-shadow 0.15s;
}

.use-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow);
}

.use-card:nth-child(odd) { background: var(--purple-pale); }
.use-card:nth-child(3n) { background: var(--gold-pale); }

.use-icon { font-size: 2rem; margin-bottom: 0.75rem; display: block; }
.use-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; }
.use-card p { font-size: 0.825rem; opacity: 0.8; line-height: 1.55; }

/* TOOL SECTION on index */
.tool-preview {
  background: var(--purple);
  border: var(--border);
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tool-preview::before {
  content: '{ }';
  font-family: 'Space Mono', monospace;
  font-size: 12rem;
  color: rgba(255,255,255,0.04);
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  white-space: nowrap;
}

.tool-preview h2 {
  font-size: 2.5rem;
  color: var(--white);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.tool-preview p {
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 0 auto 2rem;
}

.tool-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.tool-card {
  background: var(--white);
  border: var(--border);
  padding: 2rem;
  text-align: left;
  text-decoration: none;
  color: var(--black);
  display: block;
  transition: transform 0.15s, box-shadow 0.15s;
}

.tool-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--gold);
}

.tool-card-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.tool-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.tool-card p { font-size: 0.825rem; opacity: 0.7; }
.tool-card .arrow { margin-top: 1.25rem; font-size: 1.25rem; }

/* FOOTER */
footer {
  background: var(--black);
  color: var(--white);
  border-top: var(--border);
  padding: 2rem;
  text-align: center;
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
}

footer a { color: var(--gold-light); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ===== VIEWER PAGE ===== */
.page-header {
  background: var(--black);
  border-bottom: var(--border);
  padding: 2rem;
}

.page-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}

.page-header p { color: rgba(255,255,255,0.5); font-size: 0.875rem; }

.tool-layout {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.panel {
  border: var(--border);
  background: var(--white);
  display: flex;
  flex-direction: column;
  min-height: 600px;
}

.panel-header {
  background: var(--black);
  color: var(--white);
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--border);
  flex-shrink: 0;
}

.panel-title {
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.panel-actions { display: flex; gap: 0.5rem; }

.icon-btn {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.3);
  color: var(--white);
  padding: 0.3rem 0.75rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.15s;
}

.icon-btn:hover {
  background: var(--purple);
  border-color: var(--purple-light);
}

.icon-btn.gold { border-color: var(--gold); color: var(--gold-light); }
.icon-btn.gold:hover { background: var(--gold); color: var(--black); }

.panel-body { flex: 1; display: flex; flex-direction: column; position: relative; }

.drop-zone {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
  border: 4px dashed rgba(0,0,0,0.15);
  margin: 1rem;
  transition: all 0.2s;
  cursor: pointer;
  gap: 1rem;
}

.drop-zone.dragover {
  border-color: var(--purple);
  background: var(--purple-pale);
}

.drop-zone-icon { font-size: 3rem; }
.drop-zone h3 { font-size: 1.25rem; font-weight: 700; }
.drop-zone p { font-size: 0.875rem; opacity: 0.6; }

.file-input-hidden { display: none; }

.raw-textarea {
  flex: 1;
  width: 100%;
  border: none;
  outline: none;
  padding: 1.25rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.775rem;
  line-height: 1.7;
  resize: none;
  background: #0d1117;
  color: #c9d1d9;
  min-height: 540px;
}

/* Email Render */
.email-render { flex: 1; overflow-y: auto; }

.email-meta {
  padding: 1.25rem 1.5rem;
  border-bottom: 2px solid rgba(0,0,0,0.08);
  background: var(--purple-pale);
}

.email-meta-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0.25rem;
  margin-bottom: 0.35rem;
  font-size: 0.875rem;
}

.email-meta-row:last-child { margin-bottom: 0; }

.meta-label {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--purple);
  padding-top: 0.1rem;
}

.meta-value { color: var(--black); word-break: break-word; }

.email-subject-bar {
  padding: 1rem 1.5rem;
  border-bottom: var(--border);
  background: var(--black);
  color: var(--white);
}

.email-subject-bar h2 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.25px;
}

.email-body-render {
  padding: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--black);
  flex: 1;
  overflow-y: auto;
}

.email-body-render pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  line-height: 1.7;
}

.attachments-bar {
  padding: 0.875rem 1.25rem;
  border-top: 2px solid rgba(0,0,0,0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: var(--gold-pale);
}

.attach-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--white);
  border: 2px solid var(--black);
  padding: 0.25rem 0.75rem;
  font-size: 0.775rem;
  font-family: 'Space Mono', monospace;
  cursor: pointer;
  transition: all 0.15s;
}

.attach-chip:hover {
  background: var(--gold-light);
}

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
  opacity: 0.4;
  gap: 0.75rem;
}

.empty-state-icon { font-size: 3rem; }
.empty-state p { font-size: 0.875rem; }

/* COMPOSER */
.composer-layout {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group { margin-bottom: 1rem; }

.form-label {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--purple);
  margin-bottom: 0.35rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  border: var(--border);
  padding: 0.625rem 0.875rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  background: var(--white);
  color: var(--black);
  outline: none;
  transition: box-shadow 0.15s;
  appearance: none;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  box-shadow: 4px 4px 0 var(--purple);
}

.form-textarea { resize: vertical; min-height: 180px; font-size: 0.875rem; line-height: 1.65; }

.composer-form { padding: 1.25rem; overflow-y: auto; }

.generate-bar {
  padding: 1rem 1.25rem;
  border-top: var(--border);
  background: var(--black);
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-shrink: 0;
}

/* NOTIFICATIONS */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--black);
  color: var(--white);
  padding: 0.875rem 1.5rem;
  border: var(--border);
  box-shadow: var(--shadow);
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 9999;
  transform: translateY(150%);
  transition: transform 0.2s;
  max-width: 320px;
}

.toast.show { transform: translateY(0); }
.toast.success { border-left: 5px solid #22c55e; }
.toast.error { border-left: 5px solid #ef4444; }

/* TABS */
.tab-bar {
  display: flex;
  border-bottom: var(--border);
  background: var(--black);
  flex-shrink: 0;
}

.tab {
  padding: 0.625rem 1.25rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  border: none;
  background: transparent;
  border-right: 2px solid rgba(255,255,255,0.1);
  transition: all 0.15s;
}

.tab.active { color: var(--gold-light); background: rgba(255,255,255,0.05); }
.tab:hover:not(.active) { color: var(--white); background: rgba(255,255,255,0.03); }

.tab-panel { display: none; flex: 1; flex-direction: column; }
.tab-panel.active { display: flex; }

/* HEADERS TABLE */
.headers-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.headers-table th {
  background: var(--black);
  color: var(--white);
  padding: 0.5rem 0.875rem;
  text-align: left;
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.headers-table td {
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  vertical-align: top;
  word-break: break-all;
}
.headers-table tr:hover td { background: var(--purple-pale); }
.headers-table td:first-child {
  font-family: 'Space Mono', monospace;
  color: var(--purple);
  font-weight: 700;
  white-space: nowrap;
  width: 35%;
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.05); }
::-webkit-scrollbar-thumb { background: var(--purple); }
::-webkit-scrollbar-thumb:hover { background: var(--purple-light); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .tool-layout, .composer-layout { grid-template-columns: 1fr; }
  .bento-card.col-4, .bento-card.col-6, .bento-card.col-8 { grid-column: span 12; }
  .tool-cards { grid-template-columns: 1fr; }
  .annotation-panel { grid-template-columns: 1fr; }
  .nav-links a { padding: 0.5rem 0.75rem; font-size: 0.8rem; }
}

@media (max-width: 600px) {
  .hero { padding: 3rem 1.25rem; }
  .bento-section { padding: 0 1.25rem; margin: 2.5rem auto; }
  .tool-layout, .composer-layout { padding: 0 1rem; }
  nav { padding: 0 1rem; }
}