:root {
  --page-bg: #eef5f7;
  --panel: #f8fbfc;
  --panel-2: #edf5f7;
  --border: #d8e4e8;
  --text: #1f2933;
  --muted: #6a6b74;
  --soft: #7f6b58;
  --link: #0f5f70;
  --link-hover: #0b4855;
  --accent: #bf6d47;
  --blue: #2563eb;
  --shadow: 0 18px 55px rgba(61, 50, 38, 0.13);
  --display: "Fraunces", Georgia, serif;
  --font: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(219, 236, 235, 0.72), transparent 30%),
    linear-gradient(180deg, #f7fbfc, var(--page-bg));
}

body[data-page="writing"] {
  background:
    radial-gradient(circle at top left, rgba(219, 236, 235, 0.72), transparent 30%),
    linear-gradient(180deg, #f7fbfc, var(--page-bg));
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); }

.site-topbar {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 20px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: grid;
  gap: 2px;
  color: var(--text);
  font-weight: 900;
  line-height: 1.05;
}

.brand-name {
  font-family: var(--display);
  font-size: 1.08rem;
}

.brand-title {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-orb,
.chat-launcher-orb,
.chat-orb {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff, var(--blue));
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
  animation: breathe 2.1s ease-in-out infinite;
}

.site-nav {
  display: inline-flex;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(248, 251, 252, 0.86);
  box-shadow: 0 8px 24px rgba(61, 50, 38, 0.08);
}

.site-nav a {
  padding: 9px 15px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 900;
}

body[data-page="home"] .site-nav [data-nav="home"],
body[data-page="contact"] .site-nav [data-nav="contact"],
body[data-page="portfolio"] .site-nav [data-nav="portfolio"],
body[data-page="case-studies"] .site-nav [data-nav="case-studies"],
body[data-page="pepper"] .site-nav [data-nav="portfolio"],
body[data-page="overthinker"] .site-nav [data-nav="portfolio"],
body[data-page="writing"] .site-nav [data-nav="writing"] {
  background: var(--link);
  color: #fff;
}

#app {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 22px 0 58px;
}

.home-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
}

.profile-rail,
.content-panel,
.form-card,
.portfolio-panel {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(248, 251, 252, 0.94);
  box-shadow: var(--shadow);
}

.profile-rail {
  padding: 24px 22px;
  align-self: start;
}

.avatar {
  width: 160px;
  height: 160px;
  margin: 0 auto 18px;
  overflow: hidden;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 34px rgba(61, 50, 38, 0.14);
}

.avatar img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.profile-rail h1,
.hero h1 {
  font-family: var(--display);
  letter-spacing: 0;
}

.profile-rail h1 {
  margin: 0;
  font-size: 1.72rem;
  line-height: 1.08;
  text-align: center;
}

.headline,
.degree,
.meta-list,
.hero p,
.section p,
.legal-footer,
.card-copy,
.submit-row span {
  color: var(--muted);
  line-height: 1.65;
}

.headline,
.degree { text-align: center; }
.headline { margin: 12px 0 0; }
.degree { margin: 10px 0 18px; font-size: 0.9rem; }

.meta-list,
.rail-links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.92rem;
}

.rail-links { margin-top: 18px; }

.rail-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  background: linear-gradient(180deg, #fffdf9, var(--panel-2));
  border: 1px solid var(--border);
  font-weight: 800;
}

.home-pepper-card {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.home-pepper-card h2 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 1.08rem;
}

.inline-chat {
  height: 360px;
  border: 1px solid rgba(15, 95, 112, 0.16);
  border-radius: 16px;
  background: linear-gradient(180deg, var(--panel-2), #eef7f6);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
}

.inline-chat-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px;
  background: linear-gradient(135deg, #0f5f70, #bf6d47);
  color: #fff;
  border-bottom: 1px solid rgba(15, 95, 112, 0.18);
}

.inline-chat-header span:last-child {
  display: grid;
  gap: 1px;
}

.inline-chat-header small {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.72rem;
}

.inline-chat-messages {
  padding: 10px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inline-chat-form {
  display: flex;
  gap: 7px;
  padding: 9px;
  background: var(--panel);
  border-top: 1px solid rgba(15, 95, 112, 0.14);
}

.inline-chat-form textarea {
  min-height: 38px;
  border-radius: 999px;
  padding: 9px 11px;
  resize: none;
}

.inline-chat-form button {
  padding: 0 12px;
}

.content-panel { padding: 28px; }

.section {
  margin-bottom: 28px;
}

.section:last-child { margin-bottom: 0; }

.section h2,
.portfolio-card h2,
.form-card h2,
.roadmap h2 {
  margin: 0 0 10px;
  font-family: var(--display);
  letter-spacing: 0;
}

.skill-list {
  margin: 0;
  padding-left: 20px;
}

.skill-list li {
  margin-bottom: 9px;
  line-height: 1.62;
}

.project-list {
  display: grid;
  gap: 14px;
}

.project-mini,
.portfolio-card,
.metric,
.roadmap-item {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, #fffdf9, var(--panel-2));
  box-shadow: 0 6px 18px rgba(61, 50, 38, 0.06);
}

.project-mini { padding: 16px; }
.project-mini h3 { margin: 0 0 7px; }

.project-actions {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  gap: 7px;
  z-index: 2;
}

.project-action {
  display: inline-grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border: 1px solid rgba(15, 95, 112, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 18px rgba(31, 41, 51, 0.08);
}

.project-action:hover {
  border-color: rgba(15, 95, 112, 0.34);
  background: #fffdf9;
}

.project-action svg {
  width: 16px;
  height: 16px;
  fill: var(--link);
}

.project-mini h3,
.portfolio-card h2 {
  padding-right: 78px;
}

.hero {
  padding: 22px 0 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(2.55rem, 5vw, 5.15rem);
  line-height: 0.97;
}

.hero p { max-width: 820px; font-size: 1.07rem; }

.form-card,
.portfolio-panel,
.writing-panel {
  max-width: 900px;
  padding: 24px;
}

body[data-page="contact"] .form-card {
  max-width: 1120px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.25fr);
  gap: 20px;
  align-items: stretch;
}

body[data-page="contact"] .assistant-heading {
  min-width: 0;
  height: 100%;
  margin: 0;
  padding: 0;
  align-items: center;
  justify-content: center;
}

body[data-page="contact"] .assistant-bubble {
  width: 100%;
}

body[data-page="contact"] #contact-form {
  min-width: 0;
  height: 100%;
  border-left: 1px solid rgba(14, 111, 164, 0.14);
  padding-left: 20px;
}

.writing-panel {
  max-width: none;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(248, 251, 252, 0.94);
  box-shadow: var(--shadow);
}

.assistant-heading {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.assistant-bubble {
  position: relative;
  border: 1px solid rgba(15, 95, 112, 0.16);
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  padding: 12px 14px;
  box-shadow: 0 12px 34px rgba(31, 41, 51, 0.08);
}

.assistant-bubble::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 16px;
  width: 12px;
  height: 12px;
  background: inherit;
  border-left: 1px solid rgba(15, 95, 112, 0.16);
  border-bottom: 1px solid rgba(15, 95, 112, 0.16);
  transform: rotate(45deg);
}

.assistant-name {
  display: block;
  margin-bottom: 4px;
  color: var(--link);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.assistant-bubble p { margin: 0; line-height: 1.5; }

.assistant-copy {
  display: grid;
  gap: 9px;
}

.pepper-contact-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.48;
}

.pepper-contact-list a,
.contact-text-button {
  color: var(--link);
  font-weight: 900;
}

.contact-text-button {
  display: inline;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--link);
  box-shadow: none;
  text-align: left;
}

.pepper-contact-list span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-live-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  padding: 24px;
  background: rgba(15, 23, 42, 0.44);
  display: grid;
  place-items: center;
}

.contact-live-overlay[hidden] {
  display: none;
}

.contact-live-panel {
  width: min(760px, calc(100vw - 32px));
  height: min(760px, calc(100vh - 32px));
  border: 1px solid rgba(15, 95, 112, 0.22);
  border-radius: 18px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 30px 85px rgba(15, 23, 42, 0.34);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.contact-live-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  background: linear-gradient(135deg, #0f5f70, #bf6d47);
  color: #fff;
}

.contact-live-header strong {
  margin-right: auto;
}

.contact-live-header button {
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.contact-live-panel iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--page-bg);
}

form {
  display: grid;
  gap: 16px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 850;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fffdf9;
  color: var(--text);
  font: inherit;
  padding: 13px 14px;
}

input[readonly] {
  background: #f3f4f6;
  color: #4b5563;
}

textarea { resize: vertical; }

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 4px rgba(15, 95, 112, 0.12);
}

.field-note {
  color: var(--link);
  font-size: 0.76rem;
  font-weight: 900;
}

.submit-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

button,
.button-link {
  border: 0;
  border-radius: 999px;
  background: var(--link);
  color: #fff;
  font: inherit;
  font-weight: 900;
  padding: 12px 23px;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.75;
}

.pending-mode:disabled {
  background: #8aa0a7;
  animation: buttonPending 2.4s ease-in-out infinite;
}

.deny-mode:disabled {
  background: #9f4c4c;
  animation: buttonNope 0.42s ease-in-out 1;
}

.ready-mode {
  background: var(--blue);
  animation: buttonReady 1.8s ease-in-out infinite;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metric {
  padding: 15px;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  text-align: left;
}

button.metric {
  appearance: none;
}

.metric.active,
.metric:hover {
  border-color: var(--blue);
  box-shadow: 0 8px 22px rgba(14, 111, 164, 0.16);
}

.metric strong {
  display: block;
  font-size: 1.6rem;
}

.metric span {
  color: var(--muted);
  font-size: 0.85rem;
}

.portfolio-card.hidden {
  display: none;
}

.tech-filter-panel {
  display: grid;
  grid-template-columns: minmax(170px, 0.28fr) 1fr;
  gap: 18px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.56);
}

.filter-help {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.tech-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-filter {
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.tech-filter .stack-badge {
  margin: 0;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.tech-filter.active .stack-badge,
.tech-filter:hover .stack-badge {
  border-color: var(--blue);
  box-shadow: 0 8px 20px rgba(14, 111, 164, 0.18);
  transform: translateY(-1px);
}

.tag-pill {
  border-color: rgba(14, 111, 164, 0.24);
  background: rgba(14, 111, 164, 0.08);
  color: var(--blue-strong);
}

.case-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.portfolio-card {
  padding: 18px;
}

.portfolio-card.featured {
  grid-column: 1 / -1;
}

.research-list {
  grid-template-columns: 1fr;
}

.research-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.48fr);
  column-gap: 22px;
  align-items: start;
}

.research-card .project-actions,
.research-card .card-meta,
.research-card h2,
.research-card > p,
.research-card .card-copy,
.research-card .stack {
  grid-column: 1;
}

.thought-cloud {
  grid-column: 2;
  grid-row: 2 / span 5;
  position: relative;
  border: 1px solid rgba(14, 111, 164, 0.18);
  border-radius: 22px;
  padding: 17px 18px;
  background: rgba(245, 251, 253, 0.88);
  box-shadow: 0 18px 32px rgba(35, 58, 66, 0.09);
}

.thought-cloud::before {
  content: "";
  position: absolute;
  left: -13px;
  top: 30px;
  width: 24px;
  height: 24px;
  border-left: 1px solid rgba(14, 111, 164, 0.18);
  border-bottom: 1px solid rgba(14, 111, 164, 0.18);
  background: rgba(245, 251, 253, 0.88);
  transform: rotate(45deg);
}

.thought-cloud p {
  position: relative;
  margin: 0;
  color: var(--soft);
  line-height: 1.65;
}

.card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 9px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.62);
  color: var(--soft);
  font-size: 0.75rem;
  font-weight: 900;
}

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 14px;
}

.compact-stack {
  margin-top: 8px;
}

.stack-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 30px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 10px 5px 7px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--soft);
  font-size: 0.76rem;
  font-weight: 900;
}

.stack-badge img,
.stack-fallback {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.stack-badge img {
  filter: brightness(0) saturate(100%) invert(31%) sepia(71%) saturate(631%) hue-rotate(145deg) brightness(86%) contrast(91%);
}

.stack-fallback {
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(15, 95, 112, 0.12);
  color: var(--link);
  font-size: 0.63rem;
}

.roadmap {
  margin-top: 20px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.roadmap-item {
  padding: 14px;
}

.roadmap-item b {
  display: block;
  margin-bottom: 6px;
}

.roadmap-item span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.pepper-demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 14px;
  align-items: stretch;
}

.pepper-chat-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.pepper-chat-card .inline-chat {
  height: 560px;
}

.overthinker-panel {
  max-width: none;
  margin-bottom: 18px;
}

.overthinker-console {
  display: grid;
  gap: 18px;
}

.overthinker-tabs {
  display: inline-flex;
  width: fit-content;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
}

.overthinker-tab {
  padding: 10px 18px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--link);
  box-shadow: none;
}

.overthinker-tab.active {
  background: var(--link);
  color: #fff;
  border-color: rgba(15, 95, 112, 0.22);
}

.overthinker-tab-panel {
  display: none;
}

.overthinker-tab-panel.active {
  display: grid;
  gap: 18px;
}

.overthinker-demo-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.92fr) minmax(0, 1.08fr);
  gap: 14px;
  align-items: stretch;
}

.vcas-intro-grid,
.vcas-demo-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 14px;
  align-items: stretch;
}

.vcas-embed-card {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.vcas-iframe {
  width: 100%;
  height: 1120px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #050712;
}

.vcas-embed-actions {
  margin-top: 10px;
  display: flex;
  justify-content: flex-end;
}

.vcas-actions {
  margin: 14px 0 6px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.vcas-kpi {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.vcas-kpi .rail-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.vcas-kpi strong {
  font-size: 0.98rem;
}

.vcas-docs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.vcas-table-wrap {
  overflow: auto;
}

.vcas-table code {
  font-size: 0.86rem;
}

@media (max-width: 980px) {
  .vcas-demo-grid {
    grid-template-columns: 1fr;
  }
  .vcas-intro-grid {
    grid-template-columns: 1fr;
  }
  .vcas-docs-grid {
    grid-template-columns: 1fr;
  }
  .vcas-iframe {
    height: 1020px;
  }
}

.overthinker-task-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.overthinker-task {
  display: grid;
  gap: 4px;
  width: 100%;
  border: 1px solid rgba(15, 95, 112, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  padding: 13px 14px;
  text-align: left;
  box-shadow: none;
}

.overthinker-task.active,
.overthinker-task:hover {
  border-color: rgba(15, 95, 112, 0.42);
  background: linear-gradient(180deg, #fffdf9, #e8f3f4);
}

.overthinker-task span,
.overthinker-feedback span,
.overthinker-controls span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 900;
}

.overthinker-feedback,
.overthinker-output {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.68);
  padding: 13px 14px;
  margin-top: 12px;
}

.overthinker-output {
  display: grid;
  gap: 8px;
}

.overthinker-output p,
.overthinker-feedback p {
  margin: 0;
  color: var(--text);
  line-height: 1.55;
}

.overthinker-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}

.overthinker-controls button {
  padding: 9px 16px;
}

.overthinker-controls button:disabled {
  opacity: 0.42;
}

.overthinker-subsection {
  display: grid;
  gap: 12px;
  margin-top: 6px;
}

.overthinker-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.68);
}

.overthinker-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.overthinker-table th,
.overthinker-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.overthinker-table th {
  color: var(--link);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.overthinker-table td {
  color: var(--text);
  line-height: 1.45;
}

.overthinker-code-grid,
.overthinker-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.overthinker-code-card pre {
  max-height: 340px;
  overflow: auto;
  margin: 12px 0 0;
  padding: 14px;
  border: 1px solid rgba(15, 95, 112, 0.16);
  border-radius: 12px;
  background: #132a28;
  color: #fff7ea;
  font-size: 0.78rem;
  line-height: 1.48;
}

.overthinker-code-card code,
.overthinker-table code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.article-list {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.article-preview {
  max-height: 620px;
  overflow: hidden;
  position: relative;
  color: var(--text);
}

.article-preview-text {
  color: var(--text);
  line-height: 1.72;
  font-size: 1rem;
}

.article-preview::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(180deg, rgba(248, 251, 252, 0), var(--panel));
  pointer-events: none;
}

.recent-article-grid,
.older-article-strip,
.article-next-panel,
.article-archive {
  min-width: 0;
}

.recent-article-grid,
.older-article-strip {
  display: grid;
  gap: 12px;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}

.section-heading-row strong {
  font-family: var(--display);
  font-size: 1.35rem;
}

.recent-article-cards,
.article-next-panel,
.older-article-strip > div {
  display: grid;
  gap: 12px;
}

.recent-article-cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.article-link-card {
  display: grid;
  gap: 5px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 6px 18px rgba(61, 50, 38, 0.06);
}

.article-link-card:hover {
  background: var(--panel-2);
}

.article-link-card span,
.article-link-card em {
  color: var(--muted);
  font-size: 0.76rem;
  font-style: normal;
  font-weight: 850;
}

.article-link-card strong {
  line-height: 1.28;
}

.article-link-card.compact {
  padding: 12px;
}

.article-link-card.primary-next {
  border-color: rgba(15, 95, 112, 0.3);
}

.article-archive {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 6px 18px rgba(61, 50, 38, 0.06);
}

.article-archive summary {
  cursor: pointer;
  padding: 14px 16px;
  color: var(--text);
  font-weight: 900;
}

.article-archive .article-timeline,
.article-archive .recent-article-cards {
  border: 0;
  box-shadow: none;
  background: transparent;
}

.archive-wide {
  display: block;
}

.writing-rail {
  position: sticky;
  top: 18px;
  align-self: start;
  display: grid;
  gap: 12px;
}

.writing-rail-card,
.article-timeline {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 6px 18px rgba(61, 50, 38, 0.06);
}

.writing-rail-card {
  padding: 16px;
}

.writing-rail-card strong {
  display: block;
  margin: 3px 0 6px;
  font-family: var(--display);
  font-size: 1.35rem;
}

.writing-rail-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.88rem;
}

.rail-label {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.article-timeline {
  display: grid;
  padding: 8px;
}

.article-timeline a {
  position: relative;
  display: grid;
  gap: 3px;
  padding: 11px 10px 11px 18px;
  border-radius: 10px;
  color: var(--text);
}

.article-timeline a::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 17px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--link);
}

.article-timeline a:hover {
  background: rgba(15, 95, 112, 0.08);
}

.article-timeline span,
.article-timeline em {
  color: var(--muted);
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 850;
}

.article-timeline strong {
  font-size: 0.88rem;
  line-height: 1.35;
}

.article-card {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 6px 18px rgba(61, 50, 38, 0.06);
  padding: 24px;
}

.article-body .post-wrap,
.article-body .toc,
.article-body .table-wrap,
.article-body .kicker,
.article-body table,
.article-body thead,
.article-body tbody,
.article-body tr,
.article-body th,
.article-body td {
  background: transparent !important;
}

.article-body .toc,
.article-body .table-wrap {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

.article-card h2 {
  margin: 0 0 12px;
  font-family: var(--display);
  letter-spacing: 0;
}

.article-body {
  min-width: 0;
  max-width: 100%;
  color: var(--text);
  line-height: 1.68;
  overflow-wrap: anywhere;
}

.article-body h1,
.article-body h2,
.article-body h3 {
  margin: 1.35em 0 0.55em;
  line-height: 1.25;
}

.article-body p {
  color: var(--text);
  margin: 0.85em 0;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.article-body ul,
.article-body ol {
  padding-left: 1.25rem;
}

.article-body li {
  margin: 0.35em 0;
}

.article-body table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  table-layout: auto;
}

.article-body img,
.article-body iframe,
.article-body video {
  max-width: 100%;
  height: auto;
}

.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 0.62rem;
  vertical-align: top;
  text-align: left;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff6ea;
  padding: 14px;
}

body[data-page="writing"] .article-card,
body[data-page="writing"] .writing-panel,
body[data-page="writing"] .writing-rail-card,
body[data-page="writing"] .article-timeline {
  background-color: var(--panel);
}

.legal-footer {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 0 0 28px;
  display: grid;
  gap: 5px;
  font-size: 0.78rem;
}

.chat-launcher {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  display: none;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(15, 95, 112, 0.2);
  box-shadow: 0 16px 40px rgba(31, 41, 51, 0.18);
}

body[data-page="portfolio"] .chat-launcher,
body[data-page="case-studies"] .chat-launcher,
body[data-page="overthinker"] .chat-launcher,
body[data-page="writing"] .chat-launcher {
  display: inline-flex;
}

.chat-panel {
  position: fixed;
  right: 24px;
  top: 0;
  bottom: 0;
  z-index: 31;
  width: min(390px, calc(100vw - 32px));
  height: auto;
  max-height: var(--viewport-height, 100vh);
  border: 1px solid rgba(15, 95, 112, 0.18);
  border-radius: 18px;
  background: linear-gradient(180deg, var(--panel-2), #eef7f6);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.24);
  display: none;
  overflow: hidden;
}

.chat-panel.open {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: linear-gradient(135deg, #0f5f70, #bf6d47);
  color: #fff;
  border-bottom: 1px solid rgba(15, 95, 112, 0.18);
}

.chat-header-title {
  display: grid;
  gap: 1px;
  margin-right: auto;
}

.chat-header-title strong { font-size: 0.95rem; }
.chat-header-title span { color: rgba(255, 255, 255, 0.78); font-size: 0.78rem; }

.chat-close {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 6px 10px;
}

.chat-messages {
  min-height: 0;
  padding: 13px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 9px;
  background:
    radial-gradient(circle at top right, rgba(219, 236, 235, 0.68), transparent 38%),
    linear-gradient(180deg, var(--panel), var(--page-bg));
}

.message-row {
  display: flex;
}

.message-row.user { justify-content: flex-end; }

.message-bubble {
  max-width: 78%;
  padding: 9px 12px;
  border-radius: 16px;
  line-height: 1.42;
  font-size: 0.9rem;
}

.message-bubble.assistant {
  background: #ffffff;
  color: var(--text);
  border: 1px solid rgba(15, 95, 112, 0.12);
  border-bottom-left-radius: 4px;
  box-shadow: 0 4px 13px rgba(61, 50, 38, 0.06);
}

.message-bubble.user {
  background: #dbeceb;
  color: #16363d;
  border: 1px solid rgba(15, 95, 112, 0.13);
  border-bottom-right-radius: 4px;
}

.chat-form {
  display: flex;
  gap: 8px;
  padding: 11px;
  background: var(--panel);
  border-top: 1px solid rgba(15, 95, 112, 0.14);
}

.chat-form textarea {
  min-height: 42px;
  max-height: 82px;
  border-radius: 999px;
  padding: 10px 13px;
  resize: none;
}

.chat-form button {
  padding: 0 16px;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
  50% { transform: scale(1.08); box-shadow: 0 0 0 7px rgba(37, 99, 235, 0.18); }
}

@keyframes buttonReady {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.28); transform: translateY(0) scale(1); }
  35% { transform: translateY(-2px) scale(1.02); }
  50% { box-shadow: 0 0 0 9px rgba(37, 99, 235, 0); }
}

@keyframes buttonPending {
  0%, 100% { box-shadow: 0 0 0 0 rgba(15, 95, 112, 0.14); transform: translateY(0); }
  50% { box-shadow: 0 0 0 7px rgba(15, 95, 112, 0); transform: translateY(-1px); }
}

@keyframes buttonNope {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  50% { transform: translateX(4px); }
  75% { transform: translateX(-2px); }
}

@media (max-width: 900px) {
  .site-topbar,
  .home-layout,
  .contact-layout,
  .split,
  .metrics,
  .tech-filter-panel,
  .case-list,
  .research-card,
  .pepper-demo-grid,
  .overthinker-demo-grid,
  .overthinker-code-grid,
  .overthinker-knowledge-grid,
  .roadmap-grid,
  .writing-panel,
  .recent-article-cards {
    grid-template-columns: 1fr;
  }

  .thought-cloud,
  .research-card .project-actions,
  .research-card .card-meta,
  .research-card h2,
  .research-card > p,
  .research-card .card-copy,
  .research-card .stack {
    grid-column: 1;
  }

  .thought-cloud {
    grid-row: auto;
    margin: 8px 0 4px;
  }

  .thought-cloud::before {
    left: 32px;
    top: -12px;
    border-left: 1px solid rgba(14, 111, 164, 0.18);
    border-top: 1px solid rgba(14, 111, 164, 0.18);
    border-bottom: 0;
  }

  .site-topbar {
    display: grid;
    align-items: start;
    width: min(100%, calc(100vw - 24px));
    gap: 12px;
  }

  .home-layout {
    display: grid;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    overflow: visible;
    border-radius: 18px;
  }

  .site-nav a {
    padding: 8px 7px;
    text-align: center;
    font-size: 0.78rem;
    white-space: normal;
    line-height: 1.15;
  }

  .writing-rail {
    position: static;
  }

  .form-card,
  .portfolio-panel,
  .writing-panel {
    max-width: 100%;
    padding: 18px;
  }

  .assistant-heading {
    position: sticky;
    top: 0;
    z-index: 12;
    margin: -18px -18px 16px;
    padding: 12px 18px;
    background: rgba(248, 251, 252, 0.97);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
  }

  body[data-page="contact"] .assistant-heading {
    position: sticky;
    top: 0;
    margin: -18px -18px 16px;
    padding: 12px 18px;
    background: rgba(248, 251, 252, 0.97);
    border-bottom: 1px solid var(--border);
  }

  body[data-page="contact"] #contact-form {
    border-left: 0;
    padding-left: 0;
  }

  .assistant-bubble {
    max-height: 42vh;
    overflow-y: auto;
  }

  .contact-live-overlay {
    padding: 0;
    align-items: stretch;
    justify-items: stretch;
  }

  .contact-live-panel {
    width: var(--viewport-width, 100vw);
    height: var(--viewport-height, 100vh);
    max-height: none;
    border: 0;
    border-radius: 0;
  }

  .contact-live-header {
    padding-top: max(11px, env(safe-area-inset-top));
  }

  .article-body .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .article-body p {
    text-align: left;
    hyphens: manual;
  }

  body.pepper-floating-open {
    overflow: hidden;
  }

  .chat-launcher {
    right: 14px;
    bottom: 14px;
  }

  .chat-panel.open {
    top: var(--viewport-offset-top, 0px);
    left: var(--viewport-offset-left, 0px);
    right: auto;
    bottom: auto;
    width: var(--viewport-width, 100vw);
    max-width: var(--viewport-width, 100vw);
    height: var(--viewport-height, 100dvh);
    max-height: var(--viewport-height, 100dvh);
    border: 0;
    border-radius: 0;
    grid-template-rows: auto minmax(0, 1fr) auto;
  }

  .chat-panel.open .chat-header {
    position: sticky;
    top: 0;
    z-index: 2;
    padding-top: max(12px, env(safe-area-inset-top));
  }

  .chat-panel.open .chat-messages {
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .chat-panel.open .chat-form {
    position: sticky;
    bottom: 0;
    z-index: 2;
    padding-bottom: max(11px, env(safe-area-inset-bottom));
  }

  .chat-panel.open .chat-form textarea {
    font-size: 16px;
  }
}