/* ══════════════════════════════════════════════════
   PORTFOLIO v2 · style.css
   Theme: Refined Academic — Warm Ivory + Steel Blue
   ══════════════════════════════════════════════════ */

/* ─── TOKENS ──────────────────────────────────────── */
:root {
  /* Light mode (default) */
  --bg:           #f6f4f0;
  --bg-2:         #ffffff;
  --bg-3:         #eef1f5;
  --border:       #e2deda;
  --border-2:     #d0d8e2;
  --ink:          #20293a;
  --ink-2:        #50607a;
  --ink-3:        #8a98ad;
  --blue:         #4071a0;
  --blue-light:   #eef3f9;
  --blue-mid:     #6a9ac4;
  --blue-dark:    #2d5882;
  --green:        #4caf87;

  --font-display: 'Lora', Georgia, serif;
  --font-body:    'Nunito Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --radius:    6px;
  --radius-lg: 12px;
  --nav-h:     68px;
  --max-w:     1140px;
  --ease:      cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --section-py: clamp(5rem, 9vw, 8rem);

  /* Transition for smooth theme swap */
  --theme-transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

/* Dark mode overrides — applied when <html> has data-theme="dark" */
[data-theme="dark"] {
  --bg:           #0f1117;
  --bg-2:         #181c25;
  --bg-3:         #1f2433;
  --border:       #2a3042;
  --border-2:     #344058;
  --ink:          #e8ecf4;
  --ink-2:        #8d9bb5;
  --ink-3:        #556070;
  --blue:         #6a9fd8;
  --blue-light:   #1a2a40;
  --blue-mid:     #4f80b8;
  --blue-dark:    #93c0f0;
  --green:        #5ecfa0;
}

/* ─── RESET ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; font: inherit; cursor: pointer; }
input, textarea, button { outline: none; }
textarea { resize: vertical; }

/* ─── TYPOGRAPHY HELPERS ──────────────────────────── */
.mono-sm {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--blue);
}
.mono-tag {
  font-family: var(--font-mono);
  color: var(--blue-mid);
  font-weight: 400;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}
.section-eyebrow::before {
  content: '';
  width: 20px; height: 1px;
  background: var(--blue-mid);
  flex-shrink: 0;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.section-heading em { font-style: italic; color: var(--blue); }
.body-text {
  color: var(--ink-2);
  font-size: 1.02rem;
  line-height: 1.8;
  margin-bottom: 1.1rem;
}

/* ─── LAYOUT ──────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 5vw, 2.8rem);
}
.section { padding: var(--section-py) 0; }

/* ─── BUTTONS ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.78rem 1.6rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: all 0.22s var(--ease);
  cursor: pointer;
}
.btn--primary {
  background: var(--blue);
  color: #fff;
  border: 1.5px solid var(--blue);
}
.btn--primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(64,113,160,0.2);
}
.btn--soft {
  background: var(--blue-light);
  color: var(--blue-dark);
  border: 1.5px solid var(--border-2);
}
.btn--soft:hover {
  background: #dce8f5;
  border-color: var(--blue-mid);
  transform: translateY(-2px);
}
.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.84rem;
  background: var(--bg-2);
  color: var(--ink);
  border: 1.5px solid var(--border);
}
.btn--sm:hover { border-color: var(--blue); color: var(--blue); }
.btn--full { width: 100%; justify-content: center; }

/* ─── NAV ─────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.2rem, 5vw, 2.8rem);
  transition: background 0.35s, box-shadow 0.35s;
}
.nav.scrolled {
  background: rgba(246,244,240,0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border);
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.nav__links {
  display: flex;
  gap: 2.2rem;
}
.nav__link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: color 0.2s;
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1.5px;
  background: var(--blue);
  border-radius: 1px;
  transition: width 0.25s var(--ease);
}
.nav__link:hover { color: var(--blue); }
.nav__link:hover::after { width: 100%; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.burger span {
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 1px;
  display: block;
  transition: all 0.3s;
}

/* Mobile overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-2);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.mobile-overlay.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}
.mob-link {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 600;
  color: var(--ink);
  padding: 0.3rem 0;
  text-align: center;
  transition: color 0.2s;
}
.mob-link:hover { color: var(--blue); }

/* ─── HERO ────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  padding: var(--nav-h) clamp(1.2rem, 5vw, 2.8rem) 0;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

/* Hero badge */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.6rem;
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: blink 2.2s ease infinite;
}
@keyframes blink {
  0%,100% { box-shadow: 0 0 0 0 rgba(76,175,135,0.4); }
  50%      { box-shadow: 0 0 0 5px transparent; }
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.9rem;
}
.hero__name em { font-style: italic; color: var(--blue); }

.hero__role {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--ink-2);
  margin-bottom: 1.4rem;
  letter-spacing: 0.02em;
}

.hero__desc {
  color: var(--ink-2);
  font-size: clamp(0.95rem, 1.5vw, 1.08rem);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

/* Stack pills */
.hero__stack {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.stack-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.stack-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.stack-pills li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--blue-dark);
  background: var(--blue-light);
  border: 1px solid var(--border-2);
  border-radius: 4px;
  padding: 0.22rem 0.6rem;
}

/* ─── CODE CARD ───────────────────────────────────── */
.hero__right {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.hero__code-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(32,41,58,0.07);
}
.code-card__bar {
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #f87171; }
.dot.y { background: #fbbf24; }
.dot.g { background: #4ade80; }
.code-card__filename {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  margin-left: 0.5rem;
}
.code-card__body {
  padding: 1.4rem 1.6rem;
  margin: 0;
  overflow: auto;
}
code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--ink-2);
  display: block;
  white-space: pre;
}
/* Syntax colours — muted, not garish */
.c-kw  { color: var(--blue-dark); font-weight: 500; }
.c-cls { color: #2d7a4a; }
.c-str { color: #a05c20; }
.c-op  { color: var(--ink-3); }
.c-cm  { color: var(--ink-3); font-style: italic; }

/* Mini stats row */
.hero__stat-row {
  display: flex;
  gap: 1rem;
}
.mini-stat {
  flex: 1;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  text-align: center;
}
.mini-stat__n {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 0.2rem;
}
.mini-stat__l {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ─── REVEAL ANIMATIONS ───────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(22px);
  animation: revUp 0.75s var(--ease) forwards;
}
.d1 { animation-delay: 0.12s; }
.d2 { animation-delay: 0.24s; }
.d3 { animation-delay: 0.36s; }
.d4 { animation-delay: 0.5s; }
.d5 { animation-delay: 0.64s; }
@keyframes revUp { to { opacity: 1; transform: none; } }

.sr {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.sr.visible { opacity: 1; transform: none; }
.sr.d1 { transition-delay: 0.1s; }
.sr.d2 { transition-delay: 0.2s; }

/* ─── ABOUT ───────────────────────────────────────── */
.about { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.about__grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.about__portrait {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.portrait-svg { width: 100%; display: block; }
.portrait__badge {
  position: absolute;
  bottom: 0.9rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(246,244,240,0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.3rem 0.85rem;
  white-space: nowrap;
}

.about__facts {
  margin-top: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}
.fact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}
.fact-icon { font-size: 1rem; margin-top: 0.1rem; flex-shrink: 0; }
.fact-item strong { display: block; font-size: 0.92rem; color: var(--ink); font-weight: 700; }
.fact-item span   { font-size: 0.85rem; color: var(--ink-2); }

/* ─── SKILLS ──────────────────────────────────────── */
.skills { background: var(--bg); }

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.skill-group {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
}

.skill-group__title {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.skill-group__icon {
  width: 18px; height: 18px;
  color: var(--blue);
  flex-shrink: 0;
}

.skill-list { display: flex; flex-direction: column; gap: 1rem; }

.skill-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 0.6rem;
  row-gap: 0.3rem;
}
.skill-item__name {
  font-size: 0.84rem;
  color: var(--ink);
  font-weight: 600;
  grid-column: 1;
  grid-row: 1;
}
.skill-item__pct {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-3);
  grid-column: 2;
  grid-row: 1;
  align-self: center;
}
.skill-item__bar {
  grid-column: 1 / -1;
  grid-row: 2;
  height: 3px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
}
.skill-item__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--blue-mid), var(--blue));
  border-radius: 2px;
  transition: width 1.3s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Tool badges */
.tools-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.4rem 1.8rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.tools-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}
.tool-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.tool-badges li {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.22rem 0.7rem;
  transition: border-color 0.2s, color 0.2s;
}
.tool-badges li:hover { border-color: var(--blue-mid); color: var(--blue); }

/* ─── PROJECTS ────────────────────────────────────── */
.projects { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.projects__list { display: flex; flex-direction: column; }

.project {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 2rem;
  padding: 2.8rem 0;
}
.project-divider {
  height: 1px;
  background: var(--border);
}

.project__meta { padding-top: 0.25rem; }

.project__num {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-3);
  margin-bottom: 0.8rem;
}
.project__tags {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.project__tags li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--blue-dark);
  background: var(--blue-light);
  border: 1px solid var(--border-2);
  border-radius: 3px;
  padding: 0.18rem 0.55rem;
  display: inline-block;
  width: fit-content;
}

.project__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 0.7rem;
  transition: color 0.2s;
}
.project:hover .project__title { color: var(--blue); }

.project__desc {
  font-size: 0.97rem;
  color: var(--ink-2);
  line-height: 1.8;
  margin-bottom: 1.1rem;
}

.project__highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.4rem;
}
.project__highlights li {
  font-size: 0.87rem;
  color: var(--ink-2);
  padding-left: 1.1rem;
  position: relative;
}
.project__highlights li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--blue-mid);
  font-family: var(--font-mono);
}

.project__links { display: flex; gap: 0.7rem; flex-wrap: wrap; }

.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--bg-2);
  background: var(--blue);
  border: 1.5px solid var(--blue);
  border-radius: var(--radius);
  padding: 0.45rem 1rem;
  transition: all 0.2s;
}
.link-pill svg { width: 14px; height: 14px; flex-shrink: 0; }
.link-pill:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.link-pill--outline {
  background: transparent;
  color: var(--blue);
}
.link-pill--outline:hover { background: var(--blue-light); border-color: var(--blue-mid); }

/* ─── CONTACT ─────────────────────────────────────── */
.contact { background: var(--bg); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-top: 0.5rem;
}
.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}
.contact-detail__icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  background: var(--blue-light);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  margin-top: 0.1rem;
}
.contact-detail__icon svg { width: 16px; height: 16px; }
.contact-detail__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.15rem;
}
.contact-detail__val {
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--blue);
  transition: color 0.2s;
}
.contact-detail__val:hover { color: var(--blue-dark); }

/* Form */
.contact__form {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  box-shadow: 0 2px 12px rgba(32,41,58,0.05);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}
.form-group input,
.form-group textarea {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.78rem 0.95rem;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-3); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(64,113,160,0.1);
}
.form__success {
  display: none;
  text-align: center;
  font-size: 0.88rem;
  color: var(--green);
  font-weight: 600;
  padding-top: 0.2rem;
}
.form__success.show { display: block; }

/* ─── FOOTER ──────────────────────────────────────── */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 1.8rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.footer__logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}
.footer__copy {
  font-size: 0.82rem;
  color: var(--ink-3);
}
.footer__top {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--blue);
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
}
.footer__top:hover { opacity: 0.6; }

/* ─── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: calc(var(--nav-h) + 2rem);
    padding-bottom: 3rem;
    min-height: auto;
  }
  .hero__right { display: none; } /* show code card on wider screens only */
  .about__grid { grid-template-columns: 1fr; }
  .about__portrait { max-width: 300px; }
  .contact__inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav__links, .nav > .btn { display: none; }
  .burger { display: flex; }

  .project {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .project__meta {
    display: flex;
    align-items: center;
    gap: 0.8rem;
  }
  .project__tags { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .skills__grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; text-align: center; }
}
/* ─── CONTENT PROTECTION ──────────────────────────── */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Allow text selection inside the contact form inputs only */
input, textarea {
  -webkit-user-select: text;
  user-select: text;
}
/* ─── THEME TRANSITION ────────────────────────────── */
body,
.nav,
.about,
.skills,
.projects,
.contact,
.footer,
.skill-group,
.hero__code-card,
.contact__form,
.mini-stat,
.testimonial,
.tool-badges li,
input, textarea {
  transition: var(--theme-transition);
}

/* ─── THEME TOGGLE BUTTON ─────────────────────────── */
.nav__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  position: relative;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--blue);
  transform: rotate(20deg);
}

.theme-toggle__icon {
  position: absolute;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.25s, transform 0.35s var(--ease);
}
.theme-toggle__icon svg { width: 17px; height: 17px; }

/* Light mode → show sun, hide moon */
.theme-toggle__icon--sun  { opacity: 1;  transform: scale(1)   rotate(0deg); }
.theme-toggle__icon--moon { opacity: 0;  transform: scale(0.4) rotate(90deg); }

/* Dark mode → hide sun, show moon */
[data-theme="dark"] .theme-toggle__icon--sun  { opacity: 0;  transform: scale(0.4) rotate(-90deg); }
[data-theme="dark"] .theme-toggle__icon--moon { opacity: 1;  transform: scale(1)   rotate(0deg); }

/* Dark mode: code card syntax tweaks for readability */
[data-theme="dark"] .c-kw  { color: #7ab8f5; }
[data-theme="dark"] .c-cls { color: #7ecfa8; }
[data-theme="dark"] .c-str { color: #f0a070; }
[data-theme="dark"] .c-cm  { color: var(--ink-3); }