:root {
  --color-canvas: #f3f1eb;
  --color-surface: #faf9f5;
  --color-white: #ffffff;
  --color-ink: #151619;
  --color-ink-soft: #2c2e33;
  --color-muted: #6d7077;
  --color-cobalt: #3158d4;
  --color-cobalt-dark: #2446b5;
  --color-cobalt-soft: #e5ebff;
  --color-border: #d8d6d0;
  --color-shadow: rgba(21, 22, 25, 0.08);
  --color-shadow-strong: rgba(21, 22, 25, 0.16);
  --scrollbar-thumb: rgba(76, 86, 103, 0.48);
  --scrollbar-track: rgba(0, 0, 0, 0.04);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --content-width: 1200px;
  --shadow-soft: 0 18px 45px rgba(19, 22, 27, 0.08);
  --shadow-card: 0 20px 45px rgba(18, 19, 24, 0.08);
  --transition-base: 180ms ease;
}

body[data-theme="dark"] {
  --color-canvas: #0e1014;
  --color-surface: #171a20;
  --color-white: #ffffff;
  --color-ink: #f4f4f0;
  --color-ink-soft: #e4e7eb;
  --color-muted: #a3a7b0;
  --color-cobalt: #6b82ff;
  --color-cobalt-dark: #8ea3ff;
  --color-cobalt-soft: rgba(107, 130, 255, 0.14);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-shadow: rgba(0, 0, 0, 0.18);
  --color-shadow-strong: rgba(0, 0, 0, 0.28);
  --scrollbar-thumb: rgba(145, 159, 184, 0.58);
  --scrollbar-track: rgba(20, 22, 28, 0.9);
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.24);
  --shadow-card: 0 24px 50px rgba(0, 0, 0, 0.28);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Segoe UI", sans-serif;
  background: var(--color-canvas);
  color: var(--color-ink);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  scrollbar-width: thin;
}

* {
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb:hover {
  background: rgba(136, 147, 166, 0.8);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(49, 88, 212, 0.08), transparent 34%),
    radial-gradient(circle at bottom right, rgba(49, 88, 212, 0.06), transparent 30%);
  pointer-events: none;
  z-index: 0;
}

img {
  max-width: 100%;
  display: block;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-cobalt);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
.logo,
.nav-link,
.btn,
.eyebrow,
.section-kicker,
.meta-tag,
.stat-value,
.project-number {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

main,
.site-header-inner,
.site-footer-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 241, 235, 0.8);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

body[data-theme="dark"] .site-header {
  background: rgba(14, 16, 20, 0.78);
}

.site-header.scrolled {
  box-shadow: 0 12px 30px rgba(23, 26, 32, 0.08);
}

.site-header-inner {
  width: min(calc(100% - 2rem), var(--content-width));
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.logo {
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cobalt);
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-list {
  display: flex;
  align-items: center;
}

.nav-list ul {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-ink);
  background: rgba(49, 88, 212, 0.08);
  border-color: rgba(49, 88, 212, 0.18);
}

body[data-theme="dark"] .nav-link:hover,
body[data-theme="dark"] .nav-link.active {
  color: var(--color-ink);
  background: rgba(107, 130, 255, 0.18);
}

.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.25);
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

body[data-theme="dark"] .theme-toggle {
  background: rgba(255, 255, 255, 0.04);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(49, 88, 212, 0.3);
}

.theme-toggle .icon {
  font-size: 1rem;
  line-height: 1;
}

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  position: relative;
}

.hamburger span {
  position: absolute;
  left: 10px;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger span:nth-child(1) { top: 13px; }
.hamburger span:nth-child(2) { top: 20px; }
.hamburger span:nth-child(3) { top: 27px; }

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.page-shell,
.section-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
}

.page-shell {
  padding: 2.5rem 0 4rem;
}

.section {
  padding: 4.25rem 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3rem;
  min-height: 72vh;
  padding-top: 3.5rem;
}

.eyebrow,
.section-kicker {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-cobalt);
  font-weight: 700;
}

.hero-copy .eyebrow {
  font-size: 0.84rem;
}

.hero-copy h1 {
  margin-top: 1rem;
  font-size: clamp(4rem, 9vw, 8rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
  font-weight: 700;
}

.lead {
  max-width: 560px;
  margin-top: 1.4rem;
  font-size: 1.08rem;
  color: var(--color-muted);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-cobalt);
  border-color: var(--color-cobalt);
  color: var(--color-white);
  box-shadow: 0 12px 25px rgba(49, 88, 212, 0.2);
}

.btn-primary:hover {
  background: var(--color-cobalt-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  list-style: none;
  margin-top: 1.8rem;
}

.hero-meta li {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  background: rgba(49, 88, 212, 0.05);
  border: 1px solid rgba(49, 88, 212, 0.12);
  color: var(--color-ink-soft);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.portrait-wrap {
  position: relative;
  width: min(100%, 410px);
  margin-left: 0.5rem;
}

.portrait-wrap::before {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -18px;
  width: 75%;
  height: 74%;
  background: linear-gradient(135deg, rgba(49, 88, 212, 0.12), rgba(207, 154, 78, 0.16));
  border: 1px solid rgba(49, 88, 212, 0.14);
  border-radius: 38% 62% 55% 45% / 44% 38% 62% 56%;
  z-index: 0;
}

.portrait-frame {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: linear-gradient(145deg, rgba(49, 88, 212, 0.08), rgba(255, 255, 255, 0.2));
  border: 1.5px solid rgba(207, 154, 78, 0.35);
  border-radius: 38% 62% 55% 45% / 44% 38% 62% 56%;
  padding: 0.9rem;
  box-shadow: 0 20px 40px rgba(24, 22, 17, 0.14), 0 0 0 8px rgba(207, 154, 78, 0.03);
  transform: rotate(-2deg);
  overflow: hidden;
}

.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 38% 62% 55% 45% / 44% 38% 62% 56%;
  border: 1px solid rgba(49, 88, 212, 0.16);
}

.portrait-photo {
  position: absolute;
  inset: 0.9rem;
  width: calc(100% - 1.8rem);
  height: calc(100% - 1.8rem);
  object-fit: cover;
  border-radius: 38% 62% 55% 45% / 44% 38% 62% 56%;
  filter: saturate(1.08) contrast(1.04);
  opacity: 0;
  transition: opacity 0.25s ease, filter 0.25s ease;
}

body[data-theme="light"] .portrait-photo--light,
body[data-theme="dark"] .portrait-photo--dark {
  opacity: 1;
}

body[data-theme="dark"] .portrait-photo--dark {
  filter: saturate(1.2) contrast(1.08) brightness(0.96);
}

.portrait-note {
  position: absolute;
  right: -10px;
  bottom: 30px;
  z-index: 2;
  background: rgba(34, 67, 176, 0.147);
  border: 1px solid rgba(13, 50, 172, 0.759);
  box-shadow: var(--shadow-soft);
  border-radius: 999px;
  padding: 0.7rem 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cobalt);
  transform: rotate(-8deg);
}

.social-rail {
  position: fixed;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
}

.social-rail ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.9rem 0.7rem;
  background: rgba(250, 249, 245, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
}

body[data-theme="dark"] .social-rail ul {
  background: rgba(23, 26, 32, 0.8);
}

.social-rail a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-muted);
  transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.social-rail a:hover {
  color: var(--color-cobalt);
  background: var(--color-cobalt-soft);
  transform: translateY(-1px);
}

.section-header {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.section-header h2 {
  max-width: 760px;
  font-size: clamp(2.5rem, 5vw, 4.3rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.about-copy {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.about-copy p + p {
  margin-top: 1rem;
}

.highlight-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 1.4rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 1rem;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid var(--color-border);
}

body[data-theme="dark"] .stat {
  background: rgba(255, 255, 255, 0.02);
}

.stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--color-cobalt);
}

.stat-label {
  color: var(--color-muted);
  font-size: 0.74rem;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.work-grid {
  display: grid;
  gap: 1.5rem;
}

.project-feature {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.1rem;
  box-shadow: var(--shadow-soft);
}

.project-visual {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius-xl) - 8px);
  min-height: 420px;
}

.project-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-feature:hover .project-visual img,
.project-card:hover .project-visual img {
  transform: scale(1.03);
}

.project-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem 0.5rem 1rem 1rem;
}

.project-number {
  color: var(--color-cobalt);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
}

.project-content h3 {
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(49, 88, 212, 0.04);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.project-copy {
  margin-bottom: 1.5rem;
  color: var(--color-muted);
}

.project-links-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.inline-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-cobalt);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.inline-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0.7);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.inline-link:hover::after {
  transform: scaleX(1);
}

.project-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
  margin-top: 1rem;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: rgba(49, 88, 212, 0.28);
}

.project-visual-small {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.project-visual-small img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card-body {
  padding: 1.2rem;
}

.project-card-body h4 {
  font-size: 1.4rem;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.project-card-body p {
  margin-top: 0.7rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.95rem;
}

.project-card-tags span {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(49, 88, 212, 0.04);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.skill-cluster {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.skill-group {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow-soft);
}

.skill-group h3 {
  font-size: 0.82rem;
  margin-bottom: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-cobalt);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  list-style: none;
}

.skill-list li {
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(49, 88, 212, 0.08);
  color: var(--color-ink-soft);
  font-weight: 500;
}

.skill-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.2rem;
  align-items: start;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-year {
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--color-cobalt);
}

.timeline-content h3 {
  font-size: 1.1rem;
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.timeline-content p {
  margin-top: 0.35rem;
  color: var(--color-muted);
}

.cta-band {
  margin-top: 2rem;
  padding: 2.1rem 2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(130deg, rgba(49, 88, 212, 0.08), rgba(255, 255, 255, 0.35));
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

body[data-theme="dark"] .cta-band {
  background: linear-gradient(130deg, rgba(107, 130, 255, 0.12), rgba(23, 26, 32, 0.5));
}

.cta-band h3 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  max-width: 600px;
}

.page-header {
  padding-top: 2.5rem;
}

.page-header h1 {
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

.page-header p {
  margin-top: 1rem;
  max-width: 620px;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.page-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.2rem;
  box-shadow: var(--shadow-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.2rem;
}

.contact-card-list {
  display: grid;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid var(--color-border);
}

body[data-theme="dark"] .contact-item {
  background: rgba(255, 255, 255, 0.02);
}

.contact-label {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--color-cobalt-soft);
  color: var(--color-cobalt);
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.contact-meta strong {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cobalt);
}

.contact-meta span {
  color: var(--color-muted);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.certificate-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.certificate-card:hover {
  transform: translateY(-3px);
  border-color: rgba(49, 88, 212, 0.28);
}

.certificate-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.7rem;
  padding: 0.38rem 0.7rem;
  border-radius: 999px;
  background: var(--color-cobalt-soft);
  color: var(--color-cobalt);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.certificate-card h3 {
  font-size: 1.2rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.certificate-card p {
  margin-top: 0.7rem;
  color: var(--color-muted);
}

.certificate-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.certificate-tags span {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(49, 88, 212, 0.04);
  padding: 0.35rem 0.6rem;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.certificate-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0 2.5rem;
  background: rgba(255, 255, 255, 0.16);
}

body[data-theme="dark"] .site-footer {
  background: rgba(23, 26, 32, 0.7);
}

.site-footer-inner {
  width: min(calc(100% - 2rem), var(--content-width));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-brand {
  color: var(--color-cobalt);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-weight: 700;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.footer-links a {
  color: var(--color-muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-copy {
  color: var(--color-muted);
  font-size: 0.76rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 1000px) {
  .hero,
  .about-grid,
  .project-feature,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .project-list,
  .skill-cluster,
  .certificate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .social-rail {
    display: none;
  }
}

@media (max-width: 760px) {
  .project-visual {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .project-visual img {
    object-fit: contain;
  }

  .project-feature:hover .project-visual img {
    transform: none;
  }

  .site-header-inner {
    width: min(calc(100% - 1rem), var(--content-width));
  }

  .hamburger {
    display: block;
  }

  .nav-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.5rem 0.75rem; 
    background: rgba(250, 249, 245, 0.98);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  body[data-theme="dark"] .nav-wrap {
    background: rgba(14, 16, 20, 0.98);
  }

  .nav-wrap.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-list ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    border-radius: 12px;
  }

  .page-shell,
  .section-shell {
    width: min(calc(100% - 1rem), var(--content-width));
  }

  .hero {
    min-height: auto;
    padding-top: 1.5rem;
  }

  .hero-copy h1 {
    font-size: clamp(3rem, 18vw, 5rem);
  }

  .project-list,
  .skill-cluster,
  .certificate-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

@media (max-width: 480px) {
  .site-header-inner {
    min-height: 66px;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    width: 100%;
  }

  .page-header h1 {
    font-size: clamp(2.6rem, 15vw, 4rem);
  }
}