/* ==========================================================================
   Ravi Chappa — Personal site
   Aesthetic: dark-first research-modern. Monochrome with a single signal-cyan
   accent. Display via Instrument Serif for personality on headlines, body via
   Inter, code/labels via JetBrains Mono.
   ========================================================================== */

:root {
  /* Palette */
  --bg:        #0A0A0B;
  --bg-2:      #111113;
  --bg-3:      #18181B;
  --line:      #1F1F23;
  --line-2:    #2A2A2F;
  --ink:       #EDEDEF;
  --ink-2:     #A1A1A6;
  --ink-3:     #6B6B72;
  --accent:    #4FD1C5;        /* signal cyan */
  --accent-2:  #B794F4;        /* secondary purple — used very sparingly */
  --warn:      #F6AD55;

  /* Type */
  --sans:    'Inter', -apple-system, system-ui, sans-serif;
  --serif:   'Instrument Serif', 'Times New Roman', serif;
  --mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Scale */
  --t-xs:    11px;
  --t-sm:    13px;
  --t-base:  15px;
  --t-md:    17px;
  --t-lg:    21px;
  --t-xl:    32px;
  --t-2xl:   48px;
  --t-3xl:   72px;
  --t-4xl:   112px;

  --radius: 4px;
  --maxw: 1240px;
  --gut: 32px;
}

/* Light theme overrides ---------------------------------------------------- */
:root[data-theme="light"] {
  --bg:        #FAFAF7;
  --bg-2:      #F2F2EE;
  --bg-3:      #EAEAE3;
  --line:      #E1E1D8;
  --line-2:    #D0D0C5;
  --ink:       #15151A;
  --ink-2:     #5A5A60;
  --ink-3:     #8A8A90;
  --accent:    #0E7C76;
  --accent-2:  #6B46C1;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: var(--t-base);
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* Selection */
::selection { background: var(--accent); color: var(--bg); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-3); }

/* ==========================================================================
   Top chrome — logo bar + nav
   ========================================================================== */
.chrome {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.chrome-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--gut);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 22px; height: 22px;
  display: inline-grid; place-items: center;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--serif);
  font-size: 16px;
  border-radius: 2px;
  font-weight: 400;
}
.brand-name { color: var(--ink); }
.brand-role { color: var(--ink-3); }

.nav {
  display: flex; align-items: center; gap: 4px;
}
.nav a {
  font-family: var(--mono);
  font-size: var(--t-sm);
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: 2px;
  transition: color 120ms ease, background 120ms ease;
  position: relative;
}
.nav a:hover { color: var(--ink); }
.nav a.active {
  color: var(--ink);
}
.nav a.active::before {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: 4px;
  height: 1px;
  background: var(--accent);
}

.chrome-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink-2);
  transition: all 120ms ease;
}
.icon-btn:hover { color: var(--ink); border-color: var(--line-2); background: var(--bg-2); }
.icon-btn svg { width: 14px; height: 14px; }

/* Status pill in chrome */
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: var(--t-xs);
  color: var(--ink-2);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent); }
  50%      { box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 0%, transparent); }
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */
.section {
  padding: 120px var(--gut);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  margin-bottom: 64px;
  align-items: end;
}
.section-id {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  display: flex; align-items: baseline; gap: 16px;
}
.section-id::before {
  content: ''; width: 24px; height: 1px; background: var(--ink-3);
  display: inline-block; transform: translateY(-4px);
}
.section-title {
  font-family: var(--serif);
  font-size: var(--t-2xl);
  line-height: 1;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.section-title em {
  color: var(--accent);
  font-style: italic;
}

@media (max-width: 760px) {
  .section { padding: 72px 20px; }
  .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 40px; }
  .section-title { font-size: 36px; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding: 140px var(--gut) 100px;
  position: relative;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 28px;
  display: flex; align-items: center; gap: 12px;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(56px, 9vw, 128px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 400;
  margin-bottom: 36px;
}
.hero-title .accent { color: var(--accent); font-style: italic; }
.hero-title .ink-2 { color: var(--ink-2); }
.hero-sub {
  font-size: var(--t-md);
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 56ch;
  margin-bottom: 40px;
}
.hero-sub strong { color: var(--ink); font-weight: 500; }

.hero-meta {
  display: flex; flex-wrap: wrap; gap: 24px 36px;
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}
.hero-meta strong { color: var(--ink); font-weight: 500; }

.hero-card {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  background: var(--bg-2);
  overflow: hidden;
}
.hero-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.2) contrast(1.05);
}
.hero-card-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--bg);
  color: var(--ink);
  padding: 6px 10px;
  border: 1px solid var(--line);
}
.hero-card-meta {
  position: absolute;
  left: 16px; right: 16px; bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
}
.hero-card-meta div {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.85);
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.hero-card-meta strong { display: block; color: #fff; font-size: var(--t-sm); margin-bottom: 2px; }

/* Crosshair gridlines behind hero */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  background: var(--line);
  z-index: 1;
}
.hero::before {
  left: 0; right: 0;
  bottom: 32%;
  height: 1px;
}

/* Marquee strip */
.marquee {
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  overflow: hidden;
  position: relative;
}
.marquee-track {
  display: flex;
  gap: 64px;
  padding: 16px 0;
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-2);
  white-space: nowrap;
  animation: scroll 40s linear infinite;
  width: max-content;
}
.marquee-track span {
  display: inline-flex; align-items: center; gap: 64px;
}
.marquee-track .dot { color: var(--accent); }
@keyframes scroll {
  to { transform: translateX(calc(-100% / 2)); }
}

@media (max-width: 760px) {
  .hero { padding: 100px 20px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-title { font-size: 56px; }
}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.about-prose p {
  font-size: var(--t-md);
  line-height: 1.7;
  color: var(--ink-2);
  margin-bottom: 1.4em;
}
.about-prose p:last-child { margin-bottom: 0; }
.about-prose strong { color: var(--ink); font-weight: 500; }
.about-prose a { color: var(--ink); border-bottom: 1px solid var(--line-2); transition: border-color 120ms; }
.about-prose a:hover { border-bottom-color: var(--accent); color: var(--accent); }

.about-side {
  display: flex; flex-direction: column; gap: 32px;
}
.factsheet {
  border: 1px solid var(--line);
  background: var(--bg-2);
}
.factsheet-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  font-size: var(--t-sm);
}
.factsheet-row:last-child { border-bottom: 0; }
.factsheet-row dt {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  align-self: center;
}
.factsheet-row dd { color: var(--ink); }

.research-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.tag {
  display: inline-flex;
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  padding: 5px 9px;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 2px;
}
.tag.accent { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }

@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ==========================================================================
   Selected publications
   ========================================================================== */
.pubs-list {
  list-style: none;
  border-top: 1px solid var(--line);
}
.pub {
  display: grid;
  grid-template-columns: 60px 1fr 240px;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
  position: relative;
  transition: padding 200ms ease;
}
.pub:hover { padding-left: 12px; }
.pub-num {
  font-family: var(--mono);
  font-size: var(--t-xs);
  color: var(--ink-3);
  letter-spacing: 0.08em;
  padding-top: 6px;
}
.pub-body { min-width: 0; }
.pub-title {
  font-family: var(--serif);
  font-size: var(--t-xl);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 8px;
}
.pub-authors {
  font-size: var(--t-sm);
  color: var(--ink-2);
  margin-bottom: 8px;
}
.pub-authors u { color: var(--ink); text-decoration: none; font-weight: 500; border-bottom: 1px solid var(--accent); }
.pub-authors a { color: var(--ink-2); border-bottom: 1px dashed var(--line-2); }
.pub-meta {
  display: flex; flex-wrap: wrap; gap: 10px 14px;
  align-items: center;
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-bottom: 16px;
  line-height: 1.4;
}
.pub-meta > * { white-space: nowrap; }
.pub-meta .venue {
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  padding: 3px 8px;
  border-radius: 2px;
  line-height: 1.4;
}
.pub-meta .award {
  color: var(--warn);
  border: 1px solid color-mix(in srgb, var(--warn) 40%, var(--line));
  padding: 3px 8px;
  border-radius: 2px;
  line-height: 1.4;
  font-weight: 500;
}
.pub-actions a.award-link {
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 50%, var(--line));
}
.pub-actions a.award-link:hover {
  background: var(--warn);
  border-color: var(--warn);
  color: var(--bg);
}
.pub-meta .year {}
.pub-actions {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.pub-actions a, .pub-actions button {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border: 1px solid var(--line);
  color: var(--ink-2);
  border-radius: 2px;
  transition: all 120ms;
}
.pub-actions a:hover, .pub-actions button:hover {
  color: var(--bg);
  background: var(--ink);
  border-color: var(--ink);
}
.pub-thumb {
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background: var(--bg-3);
  overflow: hidden;
  position: relative;
}
.pub-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.1);
  transition: transform 400ms ease, filter 400ms ease;
}
.pub:hover .pub-thumb img {
  transform: scale(1.04);
  filter: grayscale(0);
}
.pub-abstract {
  display: none;
  grid-column: 2 / 3;
  margin-top: 4px;
  padding: 16px;
  background: var(--bg-2);
  border-left: 2px solid var(--accent);
  font-size: var(--t-sm);
  color: var(--ink-2);
  line-height: 1.6;
}
.pub.open .pub-abstract { display: block; }

@media (max-width: 900px) {
  .pub { grid-template-columns: 40px 1fr; }
  .pub-thumb { grid-column: 2 / 3; max-width: 320px; }
  .pub-abstract { grid-column: 2 / 3; }
}

.section-cta {
  margin-top: 48px;
  display: flex; justify-content: center;
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: var(--t-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  padding: 14px 24px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  transition: all 200ms ease;
}
.btn:hover {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
}
.btn .arrow { display: inline-block; transition: transform 200ms ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ==========================================================================
   News timeline
   ========================================================================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.news-item {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 28px;
  position: relative;
  background: var(--bg);
  transition: background 200ms ease;
}
.news-item:hover { background: var(--bg-2); }
.news-date {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 10px;
}
.news-date::after {
  content: ''; flex: 1; height: 1px; background: var(--line);
}
.news-text {
  font-size: var(--t-md);
  line-height: 1.45;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
}
.news-text b, .news-text strong { font-weight: 500; color: var(--accent); }
.news-text em { font-style: italic; color: var(--ink); }

@media (max-width: 760px) {
  .news-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Repos / projects
   ========================================================================== */
.repo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.repo {
  border: 1px solid var(--line);
  background: var(--bg-2);
  padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
  transition: all 200ms ease;
  position: relative;
  min-height: 220px;
}
.repo:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: var(--bg-3);
  transform: translateY(-2px);
}
.repo-head {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: var(--t-sm);
  color: var(--ink);
}
.repo-head svg { width: 14px; height: 14px; color: var(--ink-3); }
.repo-name { font-weight: 500; }
.repo-desc {
  font-size: var(--t-sm);
  color: var(--ink-2);
  line-height: 1.5;
  flex: 1;
}
.repo-stats {
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  font-family: var(--mono);
  font-size: var(--t-xs);
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.repo-stats > span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.repo-lang {
  display: inline-flex; align-items: center; gap: 6px;
}
.repo-lang::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--lang-color, var(--accent));
}

@media (max-width: 900px) { .repo-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .repo-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   CV / Timeline
   ========================================================================== */
.cv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.cv-block-title {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.cv-list {
  list-style: none;
  display: flex; flex-direction: column;
  gap: 28px;
}
.cv-entry {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.cv-entry:last-child { border-bottom: 0; padding-bottom: 0; }
.cv-when {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  padding-top: 4px;
  white-space: nowrap;
}
.cv-role {
  font-family: var(--serif);
  font-size: var(--t-lg);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.cv-where {
  font-size: var(--t-sm);
  color: var(--ink-2);
  margin-bottom: 8px;
}
.cv-where em { color: var(--accent); font-style: normal; }
.cv-detail {
  font-size: var(--t-sm);
  color: var(--ink-2);
  line-height: 1.55;
}

@media (max-width: 760px) {
  .cv-grid { grid-template-columns: 1fr; gap: 40px; }
  .cv-entry { grid-template-columns: 1fr; gap: 6px; }
}

/* ==========================================================================
   Awards / honors strip
   ========================================================================== */
.honors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.honor {
  border: 1px solid var(--line);
  padding: 20px;
  display: flex; flex-direction: column; gap: 8px;
  background: var(--bg-2);
}
.honor-year {
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.1em;
  color: var(--accent);
}
.honor-title {
  font-family: var(--serif);
  font-size: var(--t-md);
  line-height: 1.3;
}
.honor-org {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-top: auto;
}
@media (max-width: 900px) { .honors { grid-template-columns: 1fr 1fr; } }

/* ==========================================================================
   Contact / footer
   ========================================================================== */
.contact {
  background: var(--bg-2);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: end;
}
.contact-headline {
  font-family: var(--serif);
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-weight: 400;
}
.contact-headline em { color: var(--accent); font-style: italic; }
.contact-headline a {
  border-bottom: 2px solid var(--ink);
  transition: border-color 200ms;
}
.contact-headline a:hover { border-bottom-color: var(--accent); color: var(--accent); }

.socials {
  display: flex; flex-direction: column; gap: 4px;
}
.social-link {
  display: grid;
  grid-template-columns: 24px 1fr 14px;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-family: var(--mono);
  font-size: var(--t-sm);
  color: var(--ink);
  transition: all 200ms;
}
.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.social-link .icon { color: var(--ink-2); width: 14px; height: 14px; }
.social-link:hover .icon { color: var(--accent); }
.social-link .label { color: var(--ink-2); font-size: var(--t-xs); text-transform: uppercase; letter-spacing: 0.08em; }
.social-link .handle { color: var(--ink); font-family: var(--mono); }
.social-link .arrow { font-family: var(--mono); color: var(--ink-3); }
.social-link:hover .arrow { color: var(--accent); transform: translate(2px, -2px); }

@media (max-width: 760px) {
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}

/* Footer */
.foot {
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.foot-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px var(--gut);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono);
  font-size: var(--t-xs);
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  gap: 24px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Reveal animations (subtle)
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in { opacity: 1; transform: none; }

/* ==========================================================================
   Scroll progress
   ========================================================================== */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 1px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
}