:root {
  --bg: #ffffff;
  --fg: #0b1727;
  --muted: #5b667a;
  --accent: #0ea76d;
  --accent-strong: #0c8a5c;
  --card: #f7fafb;
  --border: #e5eaf2;
  --shadow: 0 12px 36px rgba(12, 28, 48, 0.08);
  --radius-sm: 0.65rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.2rem;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --content-max: 1120px;
  --font-sans: "Manrope", "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --line-height: 1.6;
}

:root[data-theme="dark"] {
  --bg: #0b0f14;
  --fg: #e9eef5;
  --muted: #9fb1c6;
  --accent: #2ed68e;
  --accent-strong: #1cad77;
  --card: #111927;
  --border: #1f2a3a;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: clamp(15px, 0.45vw + 14px, 18px);
  line-height: var(--line-height);
  text-rendering: optimizeLegibility;
  transition: background 0.35s ease, color 0.35s ease;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  text-decoration-color: var(--accent);
}

a:hover {
  text-decoration-color: var(--accent-strong);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

h1,
h2,
h3 {
  color: var(--fg);
  line-height: 1.25;
  margin: 0 0 var(--space-3);
}

h1 {
  font-size: clamp(2.25rem, 2vw + 1.6rem, 3rem);
}

h2 {
  font-size: clamp(1.6rem, 1.5vw + 1.2rem, 2.1rem);
}

h3 {
  font-size: clamp(1.15rem, 1vw + 1rem, 1.4rem);
}

p {
  margin: 0 0 var(--space-3);
}

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

.lead {
  font-size: clamp(1.05rem, 0.75vw + 1rem, 1.25rem);
  font-weight: 500;
  color: var(--fg);
}

.eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: var(--space-2);
}

.container {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 1.5rem);
}

.section {
  padding-block: clamp(2.5rem, 2vw + 2rem, 4rem);
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 96px;
}

.section-heading {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.stack {
  display: grid;
}

.gap-md {
  gap: var(--space-3);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  background: var(--accent);
  color: #fff;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  z-index: 20;
}

.skip-link:focus-visible {
  position: fixed;
  left: var(--space-3);
  top: var(--space-3);
  width: auto;
  height: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(120deg, #0ea76d, #0c8a5c);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

:root[data-theme="dark"] .site-header {
  background: linear-gradient(120deg, #0f8f5b, #0b6c49);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  text-decoration: none;
}

.logo {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.tagline {
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  position: relative;
  padding: 0.35rem 0.25rem;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.2s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after,
.nav a.active::after,
.nav a[aria-current="true"]::after {
  width: 100%;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--fg);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.6rem 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  text-decoration: none;
}

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

.btn:active {
  transform: translateY(0);
}

.btn.primary {
  background: var(--accent);
  color: #0d241a;
  border-color: var(--accent);
  box-shadow: 0 14px 30px rgba(14, 167, 109, 0.35);
}

.btn.primary:hover {
  background: var(--accent-strong);
  color: #fff;
}

.btn.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

:root[data-theme="dark"] .btn {
  background: #132032;
  color: var(--fg);
  border-color: var(--border);
}

:root[data-theme="dark"] .btn.ghost {
  color: #e9eef5;
  border-color: rgba(233, 238, 245, 0.5);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.about-grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 800px) {
  .about-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  }
}

.profile {
  margin: 0;
  padding: var(--space-3);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
}

.profile figcaption {
  margin-top: var(--space-3);
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 42px rgba(12, 28, 48, 0.12);
}

:root[data-theme="dark"] .card {
  background: #0f1724;
}

.card-body {
  padding: var(--space-4);
}

.card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.projects-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.filter-btn {
  border-radius: 999px;
  padding-inline: var(--space-3);
  padding-block: 0.45rem;
  font-size: 0.9rem;
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d241a;
}

.projects-refine {
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.inline-form label {
  font-weight: 600;
  font-size: 0.95rem;
}

.inline-form input,
.inline-form select {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--fg);
  min-width: 220px;
}

:root[data-theme="dark"] .inline-form input,
:root[data-theme="dark"] .inline-form select {
  background: #132032;
  color: var(--fg);
}

.projects-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.project-card picture {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.card-body h3 {
  margin-top: 0;
}

.toggle-details {
  margin: var(--space-2) 0;
  font-size: 0.9rem;
}

.details {
  margin: 0;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: rgba(14, 167, 109, 0.08);
  border: 1px solid var(--border);
  line-height: 1.5;
}

:root[data-theme="dark"] .details {
  background: rgba(46, 214, 142, 0.08);
}

.project-highlights {
  margin: var(--space-3) 0 0;
  padding-left: 1.1rem;
  color: var(--fg);
}

.project-highlights li {
  margin-bottom: var(--space-1);
}

.no-results {
  text-align: center;
  margin-top: var(--space-3);
  font-weight: 600;
}

.repo-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-3);
}

.repo-status,
.repo-error,
.repo-empty {
  margin-bottom: var(--space-3);
  font-size: 0.95rem;
}

.repo-error {
  color: #c03221;
}

.repo-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.repo-card {
  border-radius: var(--radius-md);
}

.repo-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.repo-title a {
  font-weight: 700;
  text-decoration: none;
  color: var(--accent-strong);
}

.repo-desc {
  margin-bottom: var(--space-3);
}

.repo-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  color: var(--muted);
  font-size: 0.9rem;
}

.repo-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(14, 167, 109, 0.1);
  color: var(--fg);
}

.live-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.weather-card {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(14, 167, 109, 0.06);
}

.weather-temp {
  font-size: clamp(2.1rem, 1vw + 2rem, 2.8rem);
  font-weight: 800;
  color: var(--accent-strong);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.weather-meta p {
  margin: 0;
}

.weather-location {
  font-weight: 700;
}

.quote-text {
  font-size: 1.05rem;
  line-height: 1.6;
}

.quote-author {
  margin-top: var(--space-2);
  font-weight: 600;
}

.favorite-quote {
  margin-top: var(--space-3);
}

.form {
  max-width: 520px;
  display: grid;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  gap: var(--space-2);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--fg);
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.form-row input:focus-visible,
.form-row textarea:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(14, 167, 109, 0.2);
}

:root[data-theme="dark"] .form-row input,
:root[data-theme="dark"] .form-row textarea {
  background: #132032;
}

.input-hint {
  color: #c03221;
  font-size: 0.9rem;
  min-height: 1em;
}

.input-hint.ok {
  color: var(--accent-strong);
}

.form-status {
  min-height: 1.2em;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  font-weight: 600;
}

.form-status.error {
  border-color: #c03221;
  background: rgba(192, 50, 33, 0.12);
  color: #a42518;
}

.form-status.success {
  border-color: var(--accent);
  background: rgba(14, 167, 109, 0.12);
  color: var(--accent-strong);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.card-inline {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--border);
}

.site-footer {
  background: #f4f6f9;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

:root[data-theme="dark"] .site-footer {
  background: #0f1724;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) clamp(1rem, 3vw, 1.5rem);
  flex-wrap: wrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  .nav {
    justify-content: flex-start;
  }

  .header-inner {
    align-items: flex-start;
  }
}