:root {
  color-scheme: dark;
  --ink: #080706;
  --ink-2: #0f0c09;
  --panel: rgba(18, 15, 12, 0.92);
  --panel-2: rgba(25, 21, 16, 0.94);
  --paper: #f0e4ca;
  --paper-dim: #c9b894;
  --muted: #9f9074;
  --brass: #c99e4d;
  --brass-2: #e0b762;
  --rust: #8f3c30;
  --teal: #58aaa4;
  --line: rgba(201, 158, 77, 0.26);
  --line-strong: rgba(201, 158, 77, 0.52);
  --shadow: rgba(0, 0, 0, 0.42);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(240, 228, 202, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 228, 202, 0.014) 1px, transparent 1px),
    radial-gradient(circle at 18% 8%, rgba(143, 60, 48, 0.14), transparent 34rem),
    radial-gradient(circle at 94% 32%, rgba(88, 170, 164, 0.11), transparent 32rem),
    var(--ink);
  background-size: 46px 46px, 46px 46px, auto, auto, auto;
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--paper);
  color: var(--ink);
  padding: 0.65rem 0.9rem;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 3vw, 2.5rem);
  border-bottom: 1px solid rgba(201, 158, 77, 0.2);
  background: rgba(8, 7, 6, 0.88);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--paper);
  text-decoration: none;
  font-weight: 700;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  color: var(--brass);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
}

nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(0.65rem, 2vw, 1.35rem);
  color: var(--paper-dim);
  font-size: 0.92rem;
  white-space: nowrap;
}

nav a {
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--paper);
}

.section-shell {
  width: min(1160px, 100%);
  margin: 0 auto;
  padding: clamp(3.5rem, 7vw, 6rem) clamp(1rem, 3vw, 2.5rem);
}

.hero,
.page-hero,
.article-header {
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(90deg, rgba(8, 7, 6, 0.95) 0%, rgba(8, 7, 6, 0.76) 44%, rgba(8, 7, 6, 0.2) 100%),
    linear-gradient(0deg, rgba(8, 7, 6, 0.95) 0%, transparent 42%),
    url("/assets/profile-banner.webp") center / cover no-repeat;
}

.hero {
  min-height: 64vh;
  display: grid;
  align-items: end;
  padding: clamp(2.75rem, 5vw, 4.8rem) clamp(1rem, 3vw, 2.5rem) clamp(1.4rem, 3vw, 2.4rem);
}

.hero::after,
.page-hero::after,
.article-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(240, 228, 202, 0.034) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 228, 202, 0.024) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(90deg, black 0 56%, transparent 90%);
}

.hero-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 24rem);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}

.hero-copy {
  max-width: 54rem;
}

.page-hero .section-shell,
.article-header .section-shell {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--brass);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

h1 {
  max-width: 15ch;
  font-size: clamp(2.85rem, 6.7vw, 5.8rem);
}

h2 {
  font-size: clamp(2rem, 4.7vw, 4.2rem);
}

h3 {
  font-size: 1.05rem;
}

.thesis {
  margin: 1rem 0 0;
  color: var(--brass-2);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.hero-lede {
  max-width: 48rem;
  margin: 1rem 0 0;
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
}

.large-copy {
  margin: 0;
  color: var(--paper-dim);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions,
.contact-actions,
.sandbox-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.button,
.filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  max-width: 100%;
  padding: 0.72rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: rgba(8, 7, 6, 0.46);
  color: var(--paper);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible,
.filter-button:hover,
.filter-button:focus-visible,
.filter-button.active {
  transform: translateY(-1px);
  border-color: var(--brass);
  background: rgba(201, 158, 77, 0.13);
}

.button.primary {
  background: var(--brass);
  border-color: var(--brass);
  color: #17110a;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--brass-2);
}

.field-ledger {
  margin: 0;
  padding: 1rem 0 1rem 1.25rem;
  border-left: 1px solid var(--line-strong);
  color: var(--paper-dim);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
}

.field-ledger p {
  margin: 0.25rem 0;
}

.intro-band,
.contact-band {
  border-block: 1px solid rgba(201, 158, 77, 0.2);
  background:
    linear-gradient(90deg, rgba(143, 60, 48, 0.13), transparent 45%),
    rgba(12, 10, 8, 0.76);
}

.section-heading {
  display: grid;
  gap: 0.4rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.75rem);
}

.compact-heading {
  max-width: 54rem;
}

.signal-grid,
.notebook-category-grid,
.notebook-grid {
  display: grid;
  gap: 1rem;
}

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

.notebook-category-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.signal-card,
.category-card,
.notebook-card,
.work-main,
.work-stack article,
.editor-panel,
.preview-panel,
.validation-panel,
.filter-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  box-shadow: 0 20px 45px var(--shadow);
}

.signal-card,
.category-card,
.notebook-card {
  min-height: 14rem;
  padding: 1.1rem;
}

.signal-card,
.notebook-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.signal-card span,
.category-card span,
.card-index,
.status-pill {
  color: var(--teal);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  font-weight: 800;
}

.category-card,
.notebook-card a {
  text-decoration: none;
}

.signal-card p,
.category-card p,
.notebook-card p,
.work-stack p,
.work-main p,
.article-body p,
.article-body li,
.site-footer p {
  color: var(--paper-dim);
}

.signal-card p,
.category-card p,
.notebook-card p,
.work-stack p {
  margin: 0.8rem 0 0;
}

.card-topline,
.article-meta,
.panel-heading,
.sandbox-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 0.34rem 0.55rem;
  border: 1px solid rgba(88, 170, 164, 0.48);
  border-radius: 999px;
  background: rgba(88, 170, 164, 0.09);
  white-space: nowrap;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tag-row span {
  padding: 0.28rem 0.5rem;
  border: 1px solid rgba(201, 158, 77, 0.22);
  border-radius: 999px;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.75rem;
}

.work-grid,
.contact-grid,
.sandbox-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.work-main {
  padding: clamp(1.15rem, 3vw, 1.6rem);
}

.work-title-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.3rem;
}

.work-title-row p {
  margin: 0.45rem 0 0;
}

.evidence-list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.evidence-list li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--paper-dim);
}

.evidence-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.42rem;
  height: 0.42rem;
  border: 1px solid var(--brass);
  transform: rotate(45deg);
}

.work-stack {
  display: grid;
  gap: 1rem;
}

.work-stack article {
  padding: 1.1rem;
}

.notebook-tools {
  padding-top: 2rem;
}

.filter-panel {
  margin-bottom: 1.2rem;
  padding: 1rem;
}

.filter-panel label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--brass);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.filter-panel input,
.editor-panel textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(4, 4, 3, 0.76);
  color: var(--paper);
  outline: none;
}

.filter-panel input {
  min-height: 2.75rem;
  padding: 0.75rem 0.9rem;
}

.filter-panel input:focus,
.editor-panel textarea:focus {
  border-color: var(--brass);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.article-body {
  max-width: 850px;
}

.article-body h2 {
  margin-top: 2.4rem;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.article-body p,
.article-body li {
  font-size: 1.05rem;
}

.article-body pre,
.validation-panel pre {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(4, 4, 3, 0.72);
  color: var(--paper-dim);
}

.article-body code,
.validation-panel pre,
.editor-panel textarea {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
}

.sandbox-shell {
  padding-top: 2rem;
}

.sandbox-toolbar {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 10, 8, 0.82);
}

.sandbox-toolbar h2,
.validation-panel h2,
.panel-heading h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
}

.editor-panel,
.preview-panel,
.validation-panel {
  padding: 1rem;
}

.editor-panel textarea {
  min-height: 38rem;
  margin-top: 1rem;
  padding: 1rem;
  line-height: 1.45;
  resize: vertical;
}

.resume-preview {
  margin-top: 1rem;
  padding: clamp(1rem, 3vw, 1.6rem);
  border-radius: 6px;
  background: #f8f3e8;
  color: #17110a;
}

.resume-preview h1,
.resume-preview h2,
.resume-preview h3 {
  font-family: Georgia, "Times New Roman", serif;
  color: #17110a;
}

.resume-preview h1 {
  max-width: none;
  font-size: clamp(2rem, 4vw, 3rem);
}

.resume-preview h2 {
  margin-top: 1.4rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(23, 17, 10, 0.18);
  font-size: 1.25rem;
}

.resume-preview p,
.resume-preview li {
  color: #3a2c1b;
}

.resume-preview ul {
  padding-left: 1.2rem;
}

.validation-panel {
  margin-top: 1rem;
}

.contact-grid {
  align-items: center;
}

.contact-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.site-footer {
  padding: 1.3rem clamp(1rem, 3vw, 2.5rem);
  border-top: 1px solid rgba(201, 158, 77, 0.16);
  background: #070604;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1040px) {
  .signal-grid,
  .notebook-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .notebook-category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero-inner,
  .work-grid,
  .contact-grid,
  .sandbox-grid {
    grid-template-columns: 1fr;
  }

  .field-ledger {
    width: min(100%, 36rem);
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.7rem 1rem;
  }

  nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0.15rem;
    white-space: normal;
  }

  .hero {
    min-height: auto;
    padding-top: 2.8rem;
  }

  h1 {
    font-size: clamp(2.35rem, 11vw, 2.95rem);
  }

  .hero-inner {
    gap: 1.25rem;
  }

  .hero-actions .button {
    flex: 1 1 6.5rem;
  }

  .signal-grid,
  .notebook-category-grid,
  .notebook-grid {
    grid-template-columns: 1fr;
  }

  .signal-card,
  .category-card,
  .notebook-card {
    min-height: 12rem;
  }

  .work-title-row,
  .sandbox-toolbar,
  .panel-heading {
    flex-direction: column;
  }

  .contact-actions .button,
  .sandbox-actions .button {
    width: 100%;
  }

  .field-ledger {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 0.75rem;
    row-gap: 0.2rem;
    padding: 0.75rem 0 0.75rem 1rem;
    font-size: 0.72rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}