/* ===== Theme tokens ===== */
:root {
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --accent-2: #0ea5e9;
  --accent-soft: rgba(79, 70, 229, 0.08);
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 32px -8px rgba(15, 23, 42, 0.1);
  --radius: 20px;
  --header-h: 72px;

  /* Type scale: every element uses one of these sizes */
  --fs-display: clamp(2.75rem, 7vw, 4.5rem); /* h1 */
  --fs-h2: clamp(2rem, 4vw, 2.75rem);        /* section titles, big numbers */
  --fs-h3: 1.25rem;                          /* card titles */
  --fs-xl: clamp(1.5rem, 3.2vw, 2.25rem);   /* large statements */
  --fs-lg: clamp(1.125rem, 2.2vw, 1.375rem); /* subtitles */
  --fs-body: 1rem;                           /* paragraphs, lists */
  --fs-sm: 0.875rem;                         /* nav, tags, dates, captions */
  --fs-xs: 0.75rem;                          /* uppercase labels */

  --font-head: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-italic: "Instrument Serif", Georgia, serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #09090f;
    --bg-alt: #0e0e17;
    --surface: #13131f;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #23233a;
    --accent: #818cf8;
    --accent-2: #38bdf8;
    --accent-soft: rgba(129, 140, 248, 0.1);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px -8px rgba(0, 0, 0, 0.5);
  }
}

:root[data-theme="dark"] {
  --bg: #09090f;
  --bg-alt: #0e0e17;
  --surface: #13131f;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --border: #23233a;
  --accent: #818cf8;
  --accent-2: #38bdf8;
  --accent-soft: rgba(129, 140, 248, 0.1);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px -8px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

h1,
h2,
h3 {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--fs-display);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h2 {
  font-size: var(--fs-h2);
  line-height: 1.15;
  margin-bottom: 1rem;
}

h3 {
  font-size: var(--fs-h3);
  line-height: 1.3;
}

p,
li {
  font-size: var(--fs-body);
}

/* Italic accent: serif italic for highlighted words */
h1 em,
h2 em,
.b-big em,
.rotator,
.b-why .b-quote,
.lead em {
  font-family: var(--font-italic);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h1 em,
h2 em {
  padding-right: 0.06em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 em {
  font-size: 1.12em;
  line-height: 1;
}

p {
  color: var(--muted);
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

svg {
  flex-shrink: 0;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.container {
  width: min(1140px, 100% - 32px);
  margin-inline: auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  font-size: var(--fs-body);
  font-weight: 600;
  border: 1px solid var(--text);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -8px rgba(79, 70, 229, 0.5);
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-outline {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: none;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--fs-sm);
  border-radius: 10px;
}

.nav-links .btn-sm {
  color: var(--bg);
}

.nav-links .btn-sm:hover {
  color: #fff;
}

.btn-block {
  width: 100%;
}

/* ===== Header ===== */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.header.scrolled {
  border-color: var(--border);
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-lg);
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  display: block;
  padding: 0.5rem 0.875rem;
  border-radius: 10px;
  font-weight: 500;
  font-size: var(--fs-sm);
  color: var(--muted);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:not(.btn):hover,
.nav-links a.active:not(.btn) {
  color: var(--text);
  background: var(--accent-soft);
}

.nav-links li:last-child {
  margin-left: 0.75rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s;
}

.icon-btn:hover {
  border-color: var(--accent);
}

.icon-moon {
  display: none;
}

:root[data-theme="dark"] .icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: none;
  }

  :root:not([data-theme="light"]) .icon-moon {
    display: block;
  }
}

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: 0.3s;
}

.menu-btn.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.menu-btn.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-h) + 4rem) 0 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 15%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 15%, transparent 65%);
  opacity: 0.6;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: drift 16s ease-in-out infinite;
}

.orb-1 {
  width: 440px;
  height: 440px;
  background: var(--accent);
  top: -140px;
  left: 12%;
}

.orb-2 {
  width: 380px;
  height: 380px;
  background: var(--accent-2);
  top: 28%;
  right: 6%;
  animation-delay: -8s;
}

@keyframes drift {
  50% {
    transform: translate(40px, 30px) scale(1.1);
  }
}

.hero-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem 0.375rem 0.625rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  backdrop-filter: blur(8px);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 2rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  50% {
    box-shadow: 0 0 0 7px rgba(34, 197, 94, 0);
  }
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-role {
  display: block;
  margin-top: 0.75rem;
  font-size: var(--fs-lg);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--muted);
}

.rotator {
  display: inline-block;
  padding-right: 0.08em;
  font-size: 1.15em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: opacity 0.35s, transform 0.35s;
}

.rotator.swap {
  opacity: 0;
  transform: translateY(10px);
}

.lead {
  max-width: 580px;
  margin: 0 auto 2.5rem;
}

.lead strong {
  color: var(--text);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 4rem;
}

.arrow {
  transition: transform 0.2s;
}

.btn:hover .arrow {
  transform: translateX(4px);
}

/* Marquee */
.marquee {
  margin-top: 4rem;
  border-block: 1px solid var(--border);
  padding: 1.25rem 0;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 32s linear infinite;
}

.marquee-track span {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: var(--fs-body);
  color: var(--muted);
  padding: 0 1.5rem;
  white-space: nowrap;
}

.marquee-track span::after {
  content: "✦";
  margin-left: 3rem;
  color: var(--accent);
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ===== Sections ===== */
.section {
  padding: 7rem 0;
}

.section.alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--accent);
  font-weight: 600;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 1rem;
}

.section-head .section-tag::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.section-head {
  max-width: 680px;
  margin: 0 0 3.5rem;
}

.section-head h2 + p,
#contact h2 + p {
  max-width: 560px;
}

/* Shared bits */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tags span {
  padding: 0.25rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  font-size: var(--fs-sm);
  font-weight: 500;
}

.b-label,
.info-label {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.live-dot {
  display: inline-block;
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}

.pc-type {
  padding: 0.25rem 0.75rem;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.info-card,
.goal-card,
.xp-card,
.skill {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.info-card:hover,
.xp-card:hover,
.skill:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  box-shadow: var(--shadow);
}

/* ===== About ===== */
.about-statement {
  max-width: 980px;
  margin-bottom: 4rem;
  font-family: var(--font-head);
  font-size: var(--fs-xl);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.about-statement .w {
  color: color-mix(in srgb, var(--text) 18%, transparent);
  transition: color 0.35s;
}

.about-statement .w.on {
  color: var(--text);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.info-card {
  display: flex;
  flex-direction: column;
}

.info-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 2rem;
  border-radius: 14px;
  background: var(--accent-soft);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.info-card:hover .info-icon {
  transform: rotate(-8deg) scale(1.06);
}

.info-icon svg,
.xp-node svg,
.cp-info svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.info-card h3 {
  margin-bottom: 0.375rem;
}

.goal-card {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 4rem;
  align-items: start;
  background:
    radial-gradient(500px circle at 0% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
}

.goal-card .tags {
  margin-top: 0;
}

.goal-text {
  font-family: var(--font-head);
  font-size: var(--fs-lg);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
}

.goal-text em {
  font-family: var(--font-italic);
  font-style: italic;
  font-weight: 400;
  font-size: 1.15em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Experience (scroll-filled timeline) ===== */
.xp {
  --meta: 190px;
  --node: 44px;
  --gap: 1.75rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.xp-line {
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: calc(var(--meta) + var(--gap) + var(--node) / 2 - 1px);
  width: 2px;
  border-radius: 2px;
  background: var(--border);
  overflow: hidden;
}

.xp-fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(var(--accent), var(--accent-2));
  transform: scaleY(var(--xp, 0));
  transform-origin: top;
}

.xp-item {
  display: grid;
  grid-template-columns: var(--meta) var(--node) 1fr;
  gap: var(--gap);
  align-items: start;
}

.xp-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  padding-top: 1.75rem;
  text-align: right;
}

.xp-date {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.xp-date.current {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent);
}

.xp-place {
  font-size: var(--fs-sm);
  color: var(--muted);
}

.xp-node {
  position: relative;
  z-index: 1;
  width: var(--node);
  height: var(--node);
  margin-top: 1.25rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-alt);
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s;
}

.xp-node::after {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.4s, transform 0.4s;
}

.xp-edu .xp-node::after {
  display: none;
}

.xp-edu .xp-node svg {
  width: 18px;
  height: 18px;
  stroke: var(--muted);
  transition: stroke 0.4s;
}

.xp-item.active .xp-node {
  border-color: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
  transform: scale(1.05);
}

.xp-item.active .xp-node::after {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transform: scale(1.15);
}

.xp-item.active .xp-node svg {
  stroke: var(--accent);
}

.xp-card h3 {
  margin-bottom: 0.25rem;
}

.xp-org {
  font-weight: 500;
}

.xp-list {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.xp-list li,
.sc-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--muted);
}

.xp-list li + li,
.sc-list li + li {
  margin-top: 0.625rem;
}

.xp-list li::before,
.sc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: var(--accent);
}

/* ===== Projects (sticky stacking cards) ===== */
.stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stack-card {
  --p: 0;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem + var(--i) * 1.5rem);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem 4rem;
  min-height: 340px;
  padding: 3rem;
  border: 1px solid var(--border);
  border-radius: 28px;
  background:
    radial-gradient(600px circle at 100% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
  box-shadow: var(--shadow);
  transform: scale(calc(1 - var(--p) * 0.05));
  transform-origin: top center;
  filter: brightness(calc(1 - var(--p) * 0.08));
  overflow: hidden;
}

.stack-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.sc-left {
  display: flex;
  flex-direction: column;
}

.sc-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: auto;
  padding-bottom: 2rem;
}

.sc-num {
  font-family: var(--font-italic);
  font-style: italic;
  font-size: var(--fs-h2);
  line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stack-card h3 {
  font-size: var(--fs-lg);
}

.sc-list {
  align-self: center;
}

/* ===== Contact (dark panel) ===== */
.contact-panel {
  --cp: 1;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 4rem;
  align-items: center;
  padding: 4rem;
  border-radius: 32px;
  background: #0c0c18;
  color: #f1f5f9;
  overflow: hidden;
  isolation: isolate;
  transform: scale(calc(0.92 + var(--cp) * 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.cp-glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(500px circle at 0% 0%, rgba(99, 102, 241, 0.45), transparent 60%),
    radial-gradient(450px circle at 100% 100%, rgba(14, 165, 233, 0.35), transparent 60%);
  opacity: calc(0.4 + var(--cp) * 0.6);
}

.contact-panel .section-tag {
  color: #a5b4fc;
}

.contact-panel h2 em {
  background: linear-gradient(135deg, #a5b4fc, #7dd3fc);
  -webkit-background-clip: text;
  background-clip: text;
}

.contact-panel p {
  color: rgba(241, 245, 249, 0.7);
}

.cp-left > p {
  max-width: 440px;
}

.cp-email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-bottom: 0.375rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  font-family: var(--font-head);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: #fff;
  word-break: break-all;
  transition: border-color 0.2s, gap 0.2s;
}

.cp-email:hover {
  border-color: #a5b4fc;
  gap: 1rem;
}

.cp-arrow {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #fff;
  color: #0c0c18;
  font-size: var(--fs-sm);
  transition: transform 0.3s;
}

.cp-email:hover .cp-arrow {
  transform: rotate(45deg);
}

.cp-info {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  margin-top: 2rem;
}

.cp-info li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: rgba(241, 245, 249, 0.85);
}

.cp-info svg {
  stroke: #a5b4fc;
  width: 18px;
  height: 18px;
}

.cp-info a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.contact-form {
  padding: 2rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field {
  margin-bottom: 1.25rem;
}

.field label {
  display: block;
  font-weight: 500;
  font-size: var(--fs-sm);
  margin-bottom: 0.5rem;
  color: rgba(241, 245, 249, 0.85);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
  font-size: var(--fs-body);
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(241, 245, 249, 0.4);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: #a5b4fc;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 4px rgba(165, 180, 252, 0.15);
}

.btn-light {
  background: #fff;
  border-color: #fff;
  color: #0c0c18;
}

.btn-light:hover {
  background: #a5b4fc;
  border-color: #a5b4fc;
  color: #0c0c18;
}

.form-note {
  margin-top: 0.75rem;
  font-size: var(--fs-sm);
  text-align: center;
  color: #a5b4fc;
}

/* Section-specific breakpoints */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

  .about-grid .info-card:nth-child(3) {
    grid-column: 1 / -1;
  }

  .contact-panel {
    grid-template-columns: 1fr;
    padding: 3rem;
  }
}

@media (max-width: 760px) {
  .xp {
    --gap: 1rem;
    --node: 36px;
  }

  .xp-line {
    left: calc(var(--node) / 2 - 1px);
  }

  .xp-item {
    grid-template-columns: var(--node) 1fr;
    row-gap: 0.75rem;
  }

  .xp-meta {
    grid-column: 2;
    grid-row: 1;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 0.25rem;
    text-align: left;
  }

  .xp-node {
    grid-column: 1;
    grid-row: 1;
    margin-top: 0;
  }

  .xp-node::after {
    width: 10px;
    height: 10px;
  }

  .xp-card {
    grid-column: 2;
  }

  .stack-card {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 2rem;
  }

  .sc-head {
    padding-bottom: 1.5rem;
  }
}

@media (max-width: 560px) {
  .about-grid,
  .goal-card {
    grid-template-columns: 1fr;
  }

  .about-statement {
    margin-bottom: 2.5rem;
  }

  .info-card,
  .goal-card,
  .xp-card,
  .stack-card,
  .contact-form {
    padding: 1.5rem;
  }

  .info-icon {
    margin-bottom: 1.5rem;
  }

  .stack-card {
    border-radius: 22px;
  }

  .contact-panel {
    padding: 2rem 1.25rem;
    border-radius: 24px;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* Skills */
.skills-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: start;
}

.skills-intro {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}

.skills-intro .section-head {
  margin-bottom: 2.5rem;
}

.skill-extra .b-label {
  margin-bottom: 1rem;
}

.extra-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.extra-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: border-color 0.2s, transform 0.2s;
}

.extra-list li:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.extra-list i {
  font-size: 1.1rem;
}

.extra-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.skill {
  --mx: 50%;
  --my: 50%;
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  overflow: hidden;
  isolation: isolate;
}

/* spotlight that follows the cursor, tinted with the brand colour */
.skill::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(320px circle at var(--mx) var(--my), color-mix(in srgb, var(--brand) 16%, transparent), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
}

.skill:hover::before {
  opacity: 1;
}

.skill.skill:hover {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
  box-shadow: 0 20px 40px -16px color-mix(in srgb, var(--brand) 35%, transparent);
}

.skill-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.skill-mark {
  width: 60px;
  height: 60px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.skill-mark i {
  font-size: 2rem;
  line-height: 1;
}

.skill:hover .skill-mark {
  transform: translateY(-4px) rotate(-6deg);
}

.skill-cat {
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.skill-body h3 {
  margin-bottom: 0.375rem;
}

.skill-body p {
  max-width: 260px;
}

.skill-num {
  position: absolute;
  right: 1.75rem;
  bottom: 1.5rem;
  font-family: var(--font-head);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--muted);
  opacity: 0.6;
}

.skill-watermark {
  position: absolute;
  right: -1.5rem;
  bottom: -1.75rem;
  z-index: -1;
  font-size: 9rem;
  line-height: 1;
  color: var(--brand);
  opacity: 0.07;
  transition: opacity 0.4s, transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.skill:hover .skill-watermark {
  opacity: 0.16;
  transform: rotate(-12deg) scale(1.08);
}

/* Footer */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer p,
.to-top {
  font-size: var(--fs-sm);
  color: var(--muted);
}

.to-top:hover {
  color: var(--accent);
}

/* ===== Scroll animations ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
}

.scroll-cue {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  font-size: var(--fs-xs);
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.wheel {
  width: 3px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
  animation: wheel 1.6s ease-in-out infinite;
}

@keyframes wheel {
  0% {
    opacity: 0;
    transform: translateY(-3px);
  }

  40% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateY(10px);
  }
}

.hero-inner {
  will-change: transform, opacity;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1), filter 0.8s;
  transition-delay: var(--d, 0ms);
}

.reveal.from-left {
  transform: translateX(-60px);
}

.reveal.from-right {
  transform: translateX(60px);
}

.reveal.zoom {
  transform: scale(0.94) translateY(30px);
}

.reveal.blur-in {
  filter: blur(10px);
  transform: translateY(20px);
}

.reveal.visible {
  opacity: 1;
  transform: none;
  filter: none;
}

/* keep hover lift working after reveal */
.info-card.reveal.visible:hover,
.skill.reveal.visible:hover {
  transform: translateY(-4px);
  transition-delay: 0ms;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .skills-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .skills-intro {
    position: static;
    margin-bottom: 2.5rem;
  }
}

@media (max-width: 860px) {
  .menu-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1rem 16px 1.5rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s;
  }

  .nav-links.open {
    transform: none;
    visibility: visible;
  }

  .nav-links li a {
    padding: 0.75rem 1rem;
    font-size: var(--fs-body);
  }

  .nav-links li:last-child {
    margin: 0.5rem 0 0;
  }

  .nav-links li a.btn {
    width: 100%;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + 3rem);
  }

  .section {
    padding: 5rem 0;
  }

  .section-head {
    margin-bottom: 2.5rem;
  }
}

@media (max-width: 560px) {
  .hero-cta .btn {
    flex: 1 1 100%;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .skill {
    min-height: 0;
  }

  .marquee {
    margin-top: 3rem;
  }

  .skill {
    padding: 1.5rem;
  }

  .footer-inner {
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .stack-card,
  .contact-panel {
    transform: none;
    filter: none;
  }
}