/* ── LIGHT THEME (default) ────────────────────────── */
[data-theme="light"] {
  --ink: #0e0e12;
  --ink2: #1c1c26;
  --paper: #f5f3ee;
  --warm: #ede9e0;
  --accent: #1a3cff;
  --muted: #888890;
  --line: #d8d4c8;
  --nav-bg: rgba(245, 243, 238, 0.441);
  --skills-bg: #0e0e12;
  --skills-title: #f5f3ee;
  --skills-em: #6b8fff;
  --skills-num: #555566;
  --skills-border: #ffffff18;
  --skills-cat: #8888aa;
  --pill-border: #ffffff18;
  --pill-color: #ccccdd;
  --footer-bg: #0e0e12;
  --footer-copy: #555566;
  --footer-link: #555566;
  --theme-icon: "☀️";
}

/* ── DARK THEME ────────────────────────────────────── */
[data-theme="dark"] {
  --ink: #e8e6f0;
  --ink2: #c8c6d8;
  --paper: #0f0f16;
  --warm: #181824;
  --accent: #6b8fff;
  --muted: #6666888;
  --muted: #888899;
  --line: #2a2a3a;
  --nav-bg: rgba(15, 15, 22, 0.478);
  --skills-bg: #0a0a12;
  --skills-title: #e8e6f0;
  --skills-em: #8ba4ff;
  --skills-num: #444456;
  --skills-border: #ffffff12;
  --skills-cat: #666677;
  --pill-border: #ffffff14;
  --pill-color: #aaaacc;
  --footer-bg: #0a0a12;
  --footer-copy: #444456;
  --footer-link: #444456;
}

/* ── RESET ────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Syne", sans-serif;
  overflow-x: hidden;
  transition:
    background 0.35s ease,
    color 0.35s ease;
}
/* cursor:none only on real pointer devices */
@media (pointer: fine) {
  body {
    cursor: none;
  }
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
}
img {
  display: block;
  max-width: 100%;
}

/* ── CUSTOM CURSOR (desktop/mouse only) ───────────── */
.cursor,
.cursor-ring {
  display: none;
}
@media (pointer: fine) {
  .cursor {
    display: block;
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition:
      width 0.25s,
      height 0.25s,
      background 0.25s;
  }
  .cursor-ring {
    display: block;
    position: fixed;
    z-index: 9998;
    pointer-events: none;
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--ink);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition:
      width 0.3s,
      height 0.3s,
      border-color 0.3s;
  }
  body:has(a:hover) .cursor {
    width: 16px;
    height: 16px;
    background: #e63946;
  }
  body:has(a:hover) .cursor-ring {
    width: 50px;
    height: 50px;
    border-color: var(--accent);
  }
}

/* ── NAV ──────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 3rem;
  transition:
    background 0.4s,
    padding 0.4s,
    backdrop-filter 0.4s;
}
nav.solid {
  background: var(--nav-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  padding: 1rem 3rem;
}
.nav-logo {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.55rem;
  font-weight: 300;
  letter-spacing: 0.04em;
}
.nav-logo strong {
  font-weight: 600;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ── THEME TOGGLE ─────────────────────────────────── */
.theme-toggle {
  width: 44px;
  height: 24px;
  background: var(--line);
  border-radius: 99px;
  border: none;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
  flex-shrink: 0;
}
[data-theme="dark"] .theme-toggle {
  background: var(--accent);
}
.theme-toggle::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  transition: transform 0.3s;
}
[data-theme="dark"] .theme-toggle::after {
  transform: translateX(20px);
}
/* sun/moon icon beside toggle */
.theme-icon {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.3s;
  user-select: none;
}

.nav-cta {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1.5px solid var(--ink);
  padding: 0.5rem 1.25rem;
  border-radius: 99px;
  transition:
    background 0.25s,
    color 0.25s,
    border-color 0.25s;
}
.nav-cta:hover {
  background: var(--ink);
  color: var(--paper);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0.3rem;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  display: block;
  transition: 0.3s;
}

/* ── HERO ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: 9rem 3rem 0;
  position: relative;
  overflow: hidden;
}
.hero-bg-text {
  position: absolute;
  bottom: -2rem;
  right: -1rem;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(7rem, 18vw, 16rem);
  font-weight: 300;
  font-style: italic;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  pointer-events: none;
  user-select: none;
  line-height: 1;
  white-space: nowrap;
  transition: -webkit-text-stroke 0.35s;
}
.hero-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: end;
}
.hero-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.hero-label::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.hero h1 {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}
.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2rem;
  padding-bottom: 0.5rem;
}
.hero-desc {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 400px;
}
.hero-desc strong {
  color: var(--ink);
  font-weight: 600;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.btn-fill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.8rem 1.8rem;
  border-radius: 99px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    background 0.25s,
    transform 0.2s,
    color 0.25s;
}
.btn-fill:hover {
  background: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}
.btn-ghost:hover {
  color: var(--ink);
}
.btn-ghost i {
  font-size: 0.7rem;
}
.hero-socials {
  display: flex;
  gap: 0.75rem;
  padding-bottom: 0.25rem;
}
.hero-socials a {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.88rem;
  transition:
    border-color 0.2s,
    color 0.2s,
    background 0.2s;
}
.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: #1a3cff10;
}
.hero-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding: 1.25rem 0;
  margin-top: 3rem;
}
.hero-stat {
  text-align: center;
}
.hero-stat strong {
  font-family: "Cormorant Garamond", serif;
  font-size: 2rem;
  font-weight: 400;
  display: block;
}
.hero-stat span {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── SECTION BASE ─────────────────────────────────── */
section {
  padding: 8rem 3rem;
}
.sec-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem;
}
.sec-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.sec-title {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
}
.sec-title em {
  font-style: italic;
  color: var(--accent);
}

/* ── ABOUT ────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 5rem;
  align-items: start;
}
.about-text p {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 300;
  line-height: 1.6;
  color: var(--ink2);
  margin-bottom: 1.5rem;
}
.about-text p span {
  color: var(--accent);
  font-style: italic;
}
.about-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.det {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.2rem;
  background: var(--warm);
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition:
    border-color 0.2s,
    background 0.35s;
}
.det:hover {
  border-color: var(--accent);
}
.det-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.det-val {
  font-size: 0.93rem;
  font-weight: 600;
}

/* ── SKILLS (dark section, adapts to theme) ───────── */
.skills-bg {
  background: var(--skills-bg);
  color: var(--skills-title);
  transition: background 0.35s;
}
.skills-bg .sec-title {
  color: var(--skills-title);
}
.skills-bg .sec-title em {
  color: var(--skills-em);
}
.skills-bg .sec-num {
  color: var(--skills-num);
}
.skills-bg .sec-header {
  border-color: var(--skills-border);
}
.skills-rows {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.skill-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  align-items: center;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--skills-border);
  transition: background 0.2s;
}
.skill-row:hover {
  background: #ffffff04;
}
.skill-row-cat {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--skills-cat);
}
.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pill {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--pill-border);
  border-radius: 99px;
  font-size: 0.8rem;
  color: var(--pill-color);
  transition:
    border-color 0.2s,
    color 0.2s;
}
.pill:hover {
  border-color: var(--skills-em);
  color: #fff;
}
.pill.learning {
  border-style: dashed;
  color: var(--skills-cat);
  font-style: italic;
}
.skills-note {
  margin-top: 2rem;
  font-size: 0.75rem;
  color: var(--skills-num);
  font-style: italic;
}

/* ── EXPERIENCE ───────────────────────────────────── */
.exp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.exp-col-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.exp-col-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.tl {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.35s;
}
.tl:last-child {
  border-bottom: none;
}
.tl-year {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--muted);
  padding-top: 0.25rem;
  line-height: 1.4;
}
.tl-title {
  font-size: 0.97rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.tl-org {
  font-size: 0.83rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.tl-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── PROJECTS ─────────────────────────────────────── */
.projects-bg {
  background: var(--warm);
  transition: background 0.35s;
}
.proj-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.proj-item {
  background: var(--paper);
  border-radius: 6px;
  overflow: hidden;
  transition: background 0.35s;
}
.proj-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1.75rem 2rem;
  cursor: pointer;
  transition: background 0.2s;
}
.proj-header:hover {
  background: var(--warm);
}
.proj-header-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.proj-index {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--muted);
  width: 2rem;
}
.proj-name {
  font-size: 1.05rem;
  font-weight: 700;
}
.proj-tech {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.15rem;
}
.proj-toggle {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  color: var(--muted);
  transition:
    transform 0.3s,
    border-color 0.3s,
    color 0.3s;
}
.proj-item.open .proj-toggle {
  transform: rotate(45deg);
  border-color: var(--accent);
  color: var(--accent);
}
.proj-body {
  display: none;
  padding: 0 2rem 1.75rem calc(2rem + 2rem + 1.5rem);
}
.proj-item.open .proj-body {
  display: block;
}
.proj-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}
.proj-links-row {
  display: flex;
  gap: 0.75rem;
}
.proj-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1.1rem;
  border-radius: 99px;
  border: 1.5px solid var(--ink);
  transition:
    background 0.2s,
    color 0.2s;
}
.proj-link:hover {
  background: var(--ink);
  color: var(--paper);
}
.proj-link.outline {
  border-color: var(--line);
  color: var(--muted);
}
.proj-link.outline:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: transparent;
}

/* ── CONTACT ──────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.contact-intro {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 300;
  line-height: 1.4;
  margin-bottom: 2.5rem;
}
.contact-intro em {
  font-style: italic;
  color: var(--accent);
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.c-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.88rem;
  transition:
    border-color 0.2s,
    background 0.2s;
}
.c-link:hover {
  border-color: var(--accent);
  background: #1a3cff08;
}
.c-link i {
  color: var(--accent);
  width: 18px;
}
.c-link span {
  color: var(--muted);
  font-size: 0.75rem;
  display: block;
}
.c-link strong {
  display: block;
  font-weight: 600;
}
.form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.form input,
.form textarea {
  width: 100%;
  background: var(--warm);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  font-family: "Syne", sans-serif;
  font-size: 0.88rem;
  color: var(--ink);
  outline: none;
  transition:
    border-color 0.25s,
    background 0.35s,
    color 0.35s;
}
.form input:focus,
.form textarea:focus {
  border-color: var(--accent);
}
.form input::placeholder,
.form textarea::placeholder {
  color: var(--muted);
}
.form textarea {
  resize: vertical;
  min-height: 120px;
}

/* ── FOOTER ───────────────────────────────────────── */
footer {
  background: var(--footer-bg);
  color: var(--skills-title);
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  transition: background 0.35s;
}
.f-logo {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.2rem;
  font-weight: 300;
}
.f-logo strong {
  font-weight: 600;
}
.f-copy {
  color: var(--footer-copy);
}
.f-socials {
  display: flex;
  gap: 0.85rem;
}
.f-socials a {
  color: var(--footer-link);
  transition: color 0.2s;
}
.f-socials a:hover {
  color: var(--skills-title);
}

/* ── REVEAL ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ── RESPONSIVE ───────────────────────────────────── */
@media (max-width: 900px) {
  nav {
    padding: 1.25rem 1.5rem;
  }
  nav.solid {
    padding: 0.9rem 1.5rem;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--line);
    padding: 1.5rem;
    gap: 1.25rem;
    backdrop-filter: blur(14px);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .hero {
    padding: 8rem 1.5rem 0;
  }
  .hero-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-bg-text {
    font-size: 5rem;
    bottom: 0;
    right: 0;
  }
  section {
    padding: 5rem 1.5rem;
  }
  .about-grid,
  .exp-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .skill-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  footer {
    flex-direction: column;
    gap: 1.25rem;
    text-align: center;
    padding: 2rem 1.5rem;
  }
}
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  .proj-header {
    grid-template-columns: 1fr;
  }
  .proj-toggle {
    display: none;
  }
  .proj-body {
    padding-left: 2rem;
  }
  .hero-bar {
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
  }
}