/* ============================================
   Rodrigo Goulart Ramos — Portfolio
   "Da contabilidade ao código"
   ============================================ */

:root {
  /* Light (accountant) palette */
  --bg: #f5f2ec;
  --bg-elev: #ebe6dc;
  --paper: #faf8f3;
  --ink: #0f1626;
  --ink-soft: #2a3447;
  --muted: #6b7384;
  --rule: #d9d2c2;
  --navy: #1a2847;
  --navy-deep: #0f1a36;
  --accent: #1a2847;
  --accent-glow: rgba(26, 40, 71, 0.08);

  /* Dev palette overrides used in dev-side panels */
  --term-bg: #0b0e16;
  --term-fg: #c9d1d9;
  --term-green: #7ee787;
  --term-blue: #79c0ff;
  --term-yellow: #f2cc60;
  --term-purple: #d2a8ff;
  --term-comment: #6b7384;

  --serif: 'Fraunces', 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans: 'Inter Tight', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

[data-theme="dark"] {
  --bg: #0b0e16;
  --bg-elev: #11151f;
  --paper: #141926;
  --ink: #e8eaf0;
  --ink-soft: #c0c5d2;
  --muted: #7d8597;
  --rule: #1e2433;
  --navy: #79c0ff;
  --navy-deep: #e8eaf0;
  --accent: #79c0ff;
  --accent-glow: rgba(121, 192, 255, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11";
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* ========== Top bar ========== */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.topbar.scrolled { border-bottom-color: var(--rule); }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--navy);
  text-decoration: none;
}
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--rule);
  border-radius: 2px;
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: -0.02em;
  background: var(--paper);
  color: var(--navy);
}

.nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}
.nav a:hover { color: var(--navy); }
.nav-num {
  color: var(--muted);
  margin-right: 6px;
  font-variant-numeric: tabular-nums;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 1px;
  background: var(--navy);
  transition: width 0.25s ease;
}
.nav a:hover::after { width: 100%; }

.lang-toggle {
  display: flex;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.topbar-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}
.theme-toggle button {
  font-size: 13px;
  letter-spacing: 0;
  padding: 6px 9px;
}
.lang-toggle button {
  background: transparent;
  border: 0;
  padding: 6px 10px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
}
.lang-toggle button.active {
  background: var(--navy);
  color: var(--paper);
}
[data-theme="dark"] .lang-toggle button.active {
  background: var(--accent);
  color: var(--bg);
}

/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  padding: 120px 40px 80px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 50% 40%, black 0%, transparent 70%);
}

.hero-text { position: relative; z-index: 2; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--muted);
}
.dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--term-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--term-green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 7.2vw, 110px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 28px;
}
.hero h1 .accent {
  font-style: italic;
  color: var(--navy);
}
.hero h1 .arrow {
  font-family: var(--mono);
  font-size: 0.5em;
  font-style: normal;
  vertical-align: middle;
  color: var(--muted);
  margin: 0 0.15em;
  font-weight: 300;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 32px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  max-width: 560px;
}
.hero-meta dt {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.hero-meta dd {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--ink);
  font-style: italic;
}

.hero-cta {
  margin-top: 40px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--accent-glow); }
.btn.ghost { background: transparent; color: var(--navy); }
.btn .arrow-r { transition: transform 0.2s; }
.btn:hover .arrow-r { transform: translateX(4px); }

[data-theme="dark"] .btn { background: var(--accent); border-color: var(--accent); color: var(--bg); }
[data-theme="dark"] .btn.ghost { background: transparent; color: var(--accent); }

/* Hero portrait frame */
.hero-frame {
  position: relative;
  z-index: 2;
  justify-self: end;
  align-self: center;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 3 / 4;
  height: auto;
}
.hero-frame .photo {
  position: absolute;
  inset: 0;
  background-image: url('assets/rodrigo-portrait.jpg');
  background-size: cover;
  background-position: center 20%;
  filter: grayscale(0.15) contrast(1.02);
  border-radius: 1px;
  z-index: 2;
}
.hero-frame .corner {
  position: absolute;
  width: 28px; height: 28px;
  border: 1px solid var(--navy);
  z-index: 3;
}
.hero-frame .corner.tl { top: -10px; left: -10px; border-right: 0; border-bottom: 0; }
.hero-frame .corner.tr { top: -10px; right: -10px; border-left: 0; border-bottom: 0; }
.hero-frame .corner.bl { bottom: -10px; left: -10px; border-right: 0; border-top: 0; }
.hero-frame .corner.br { bottom: -10px; right: -10px; border-left: 0; border-top: 0; }

.hero-frame .frame-tag {
  position: absolute;
  bottom: -36px;
  left: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  z-index: 3;
}
.hero-frame .frame-tag span { color: var(--ink-soft); }

/* terminal badge floating on photo */
.hero-frame .term-badge {
  position: absolute;
  bottom: 24px; right: -40px;
  z-index: 4;
  background: var(--term-bg);
  color: var(--term-fg);
  font-family: var(--mono);
  font-size: 11px;
  padding: 14px 16px;
  border-radius: 4px;
  width: 240px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
  transform: rotate(-1.5deg);
}
.hero-frame .term-badge .t-comment { color: var(--term-comment); }
.hero-frame .term-badge .t-key { color: var(--term-purple); }
.hero-frame .term-badge .t-str { color: var(--term-green); }
.hero-frame .term-badge .t-prop { color: var(--term-blue); }
.hero-frame .term-badge .cursor { display: inline-block; width: 7px; height: 1em; background: var(--term-fg); margin-left: 2px; vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.scroll-hint::after {
  content: "";
  width: 1px; height: 32px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: scaleY(0.2); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0.2); transform-origin: bottom; }
}

/* ========== Section frame ========== */
section {
  padding: 120px 40px;
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
}

.sec-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: baseline;
  margin-bottom: 64px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}
.sec-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.sec-num span { color: var(--navy); margin-right: 12px; }
.sec-title {
  font-family: var(--serif);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.sec-title em { color: var(--navy); font-style: italic; }

/* ========== About ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: start;
}
.about-card {
  position: relative;
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 36px;
}
.about-card::before {
  content: "01";
  position: absolute;
  top: 16px; right: 20px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.about-card .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.about-card h3 {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 14px;
  color: var(--ink);
}
.about-card h3 em { color: var(--navy); font-style: italic; }
.about-card p {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.about-card + .about-card { margin-top: 20px; }
.about-card.dev::before { content: "02"; }
.about-card.dev {
  background: var(--term-bg);
  border-color: var(--term-bg);
  color: var(--term-fg);
}
.about-card.dev .label { color: var(--term-comment); }
.about-card.dev::before { color: var(--term-comment); }
.about-card.dev h3 { color: var(--term-fg); font-family: var(--mono); font-size: 22px; letter-spacing: -0.01em; }
.about-card.dev h3 em { color: var(--term-green); font-style: normal; }
.about-card.dev p { color: var(--term-fg); font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.about-card.dev p .c { color: var(--term-comment); }

[data-theme="dark"] .about-card.dev {
  background: #1a2238;
  border-color: #2a3454;
  box-shadow: 0 12px 32px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.04);
}

.about-bio p {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 24px;
}
.about-bio p .lead {
  color: var(--ink);
  font-style: italic;
}
.about-bio .signature {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: end;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.about-bio .signature .sig-name {
  font-family: var(--serif);
  font-size: 28px;
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  color: var(--navy);
}

/* ========== Experience (accounting) ========== */
.exp-section { background: var(--bg-elev); }
.exp-section .sec-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 40px;
}
.exp-section .sec-head { margin-bottom: 48px; }
.ledger {
  border: 1px solid var(--rule);
  background: var(--paper);
}
.ledger-head, .ledger-row {
  display: grid;
  grid-template-columns: 100px 1fr 1.6fr 140px;
  gap: 24px;
  padding: 18px 28px;
  align-items: center;
}
.ledger-head {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-elev);
}
.ledger-row {
  border-bottom: 1px solid var(--rule);
  transition: background 0.2s;
}
.ledger-row:last-child { border-bottom: 0; }
.ledger-row:hover { background: var(--bg-elev); }
.ledger-row .yr {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.ledger-row .role {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--ink);
  font-style: italic;
}
.ledger-row .desc {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.55;
}
.ledger-row .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  text-align: right;
}

.exp-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 60px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.exp-stat {
  padding: 32px;
  border-right: 1px solid var(--rule);
}
.exp-stat:last-child { border-right: 0; }
.exp-stat .num {
  font-family: var(--serif);
  font-size: 64px;
  font-weight: 400;
  line-height: 1;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.exp-stat .num sup {
  font-size: 0.5em;
  font-style: italic;
  vertical-align: top;
  margin-left: 4px;
}
.exp-stat .lbl {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ========== Projects ========== */
.proj-section { background: var(--bg); }
.projects {
  display: grid;
  gap: 24px;
}
.project, .project:visited, .project:link, .project:active {
  color: inherit;
  text-decoration: none;
}
.project {
  display: grid;
  grid-template-columns: 80px 1fr 280px 200px;
  gap: 32px;
  padding: 28px 0;
  border-top: 1px solid var(--rule);
  align-items: center;
  cursor: pointer;
  transition: padding 0.3s ease;
  position: relative;
}
.project:last-child { border-bottom: 1px solid var(--rule); }
.project:hover { padding-left: 12px; padding-right: 12px; }
.project:hover .p-title { color: var(--navy); }
.project::after {
  content: "→";
  position: absolute;
  right: 16px;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--muted);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.3s, transform 0.3s, color 0.3s;
}
.project:hover::after { opacity: 1; transform: translateX(0); color: var(--navy); }

.p-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.p-title {
  font-family: var(--serif);
  font-size: clamp(24px, 2.4vw, 36px);
  font-weight: 400;
  font-style: italic;
  color: var(--ink);
  transition: color 0.3s;
  letter-spacing: -0.01em;
}
.p-desc {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.p-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}
.p-tag {
  font-family: var(--mono);
  font-size: 10px;
  padding: 4px 8px;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.proj-featured {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: stretch;
}
.proj-featured .meta {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.proj-featured .featured-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy);
}
.proj-featured h3 {
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 16px 0 20px;
  color: var(--ink);
}
.proj-featured h3 em { font-style: italic; color: var(--navy); }
.proj-featured .meta p {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.proj-featured .stack-row {
  margin-top: 24px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.proj-featured .stack-row .p-tag { border-color: var(--navy); color: var(--navy); }

.kpi-mock {
  background: linear-gradient(165deg, #0d2447 0%, #0a1830 100%);
  border: 1px solid #1a3560;
  padding: 28px;
  font-family: var(--mono);
  font-size: 12px;
  display: grid;
  gap: 16px;
  color: #d6e4ff;
  box-shadow: 0 18px 50px rgba(10, 24, 48, 0.18), inset 0 1px 0 rgba(255,255,255,0.04);
  position: relative;
  overflow: hidden;
}
.kpi-mock::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.kpi-mock > * { position: relative; z-index: 1; }
.kpi-mock .km-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: rgba(214, 228, 255, 0.55);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.kpi-mock .km-head::before {
  content: "● ● ●";
  position: absolute;
  left: 0; top: -2px;
  color: rgba(255,255,255,0.18);
  letter-spacing: 4px;
  font-size: 9px;
}
.kpi-mock .km-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.kpi-mock .km-card {
  padding: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 2px;
}
.kpi-mock .km-card .lbl {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(214, 228, 255, 0.5);
  margin-bottom: 6px;
}
.kpi-mock .km-card .val {
  font-family: var(--serif);
  font-size: 26px;
  color: #7fd3a1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.kpi-mock .km-card .delta { font-size: 10px; color: #7fd3a1; margin-top: 2px; }
.kpi-mock .km-card .delta.dn { color: #f08a8a; }
.kpi-mock .km-chart {
  height: 80px;
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 12px 0 4px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.kpi-mock .km-bar {
  flex: 1;
  background: linear-gradient(to top, #7fd3a1, rgba(127, 211, 161, 0.15));
  border-radius: 1px 1px 0 0;
  min-height: 4px;
  box-shadow: 0 0 8px rgba(127, 211, 161, 0.15);
}
[data-theme="dark"] .kpi-mock .km-bar {
  background: linear-gradient(to top, #7fd3a1, rgba(127, 211, 161, 0.15));
}

/* ========== Stack ========== */
.stack-section { background: var(--bg-elev); }
.stack-section .sec-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 40px;
}
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--paper);
}
.stack-item {
  padding: 32px 24px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 0.25s;
  position: relative;
}
.stack-item:hover { background: var(--bg-elev); }
.stack-item:nth-child(4n) { border-right: 0; }
.stack-item:nth-last-child(-n+4) { border-bottom: 0; }
.stack-item .si-glyph {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.stack-item .si-name {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-style: italic;
}
.stack-item .si-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.stack-item .si-bar {
  margin-top: 10px;
  height: 1px;
  background: var(--rule);
  position: relative;
  overflow: hidden;
}
.stack-item .si-bar::after {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--lvl, 70%);
  background: var(--navy);
}

/* ========== Education ========== */
.edu-section { background: var(--bg); }
.edu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.edu-card {
  border: 1px solid var(--rule);
  padding: 40px;
  background: var(--paper);
  position: relative;
}
.edu-card .yr {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
  margin-bottom: 24px;
}
.edu-card h3 {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 8px;
  color: var(--ink);
}
.edu-card h3 em { font-style: italic; color: var(--navy); }
.edu-card .school {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 24px;
}
.edu-card p {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.edu-card .progress {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.edu-card .progress strong { color: var(--navy); font-weight: 500; }

/* ========== Contact ========== */
.contact-section {
  background: var(--navy);
  color: var(--paper);
  padding: 140px 40px 80px;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .contact-section { background: var(--bg-elev); color: #e8eaf0; }
[data-theme="dark"] .contact-section .sec-title { color: #e8eaf0; }
[data-theme="dark"] .contact-section .contact-big { color: #e8eaf0; }
[data-theme="dark"] .contact-section .contact-big a { color: #e8eaf0; }
[data-theme="dark"] .contact-section .contact-cell a { color: #e8eaf0; }
.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
[data-theme="dark"] .contact-section::before {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
}
.contact-wrap {
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.contact-section .sec-head { border-bottom-color: rgba(255,255,255,0.15); }
.contact-section .sec-num { color: rgba(255,255,255,0.5); }
.contact-section .sec-num span { color: rgba(255,255,255,0.85); }
.contact-section .sec-title { color: var(--paper); }
.contact-section .sec-title em { color: rgba(255,255,255,0.8); }

.contact-big {
  font-family: var(--serif);
  font-size: clamp(32px, 4.5vw, 72px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 40px 0 60px;
}
.contact-big a {
  color: var(--paper);
  text-decoration: none;
  font-style: italic;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  transition: border-color 0.2s;
}
.contact-big a:hover { border-bottom-color: var(--paper); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.contact-cell {
  padding: 28px 24px;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.contact-cell:last-child { border-right: 0; }
.contact-cell .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 10px;
}
.contact-cell a {
  font-family: var(--serif);
  font-size: 22px;
  font-style: italic;
  color: var(--paper);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.contact-cell a .ext {
  font-family: var(--mono);
  font-size: 12px;
  font-style: normal;
  opacity: 0.6;
  transition: transform 0.2s;
}
.contact-cell a:hover .ext { transform: translate(2px, -2px); }

.foot {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

/* ========== Reveal animations ========== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; padding-top: 110px; gap: 40px; }
  .hero-frame { max-width: 360px; justify-self: start; }
  .hero-frame .term-badge { right: 0; bottom: -50px; }
  .about-grid, .edu, .proj-featured { grid-template-columns: 1fr; gap: 40px; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-item:nth-child(4n) { border-right: 1px solid var(--rule); }
  .stack-item:nth-child(2n) { border-right: 0; }
  .ledger-head, .ledger-row { grid-template-columns: 70px 1fr 100px; gap: 16px; padding: 16px 18px; }
  .ledger-head .col-desc, .ledger-row .desc { display: none; }
  .project { grid-template-columns: 50px 1fr 160px; gap: 16px; }
  .project .p-desc { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-cell { border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.15); }
  .contact-cell:last-child { border-bottom: 0; }
  .sec-head { grid-template-columns: 1fr; gap: 16px; }
  .nav { display: none; }
  .topbar { padding: 14px 20px; }
  section, .exp-section .sec-wrap, .stack-section .sec-wrap { padding: 80px 20px; }
}

@media (max-width: 600px) {
  .hero { padding: 100px 20px 60px; }
  .hero-meta { grid-template-columns: 1fr; gap: 16px; }
  .exp-stats { grid-template-columns: 1fr; }
  .exp-stat { border-right: 0; border-bottom: 1px solid var(--rule); }
  .stack-grid { grid-template-columns: 1fr; }
  .stack-item { border-right: 0 !important; }
}