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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

:root {
  --bg:           #262524;
  --bg-2:         #2e2d2b;
  --card:         #323130;
  --border:       #3d3b38;
  --accent:       #cc6b40;
  --accent-light: #d4845a;
  --accent-glow:  rgba(204, 107, 64, 0.22);
  --accent-glow2: rgba(204, 107, 64, 0.10);
  --text:         #e8e6e0;
  --text-muted:   #8a8880;
  --text-dim:     #b0aea8;
  --nav-bg:       rgba(38, 37, 36, 0.92);
  --shadow:       0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.6);
  --radius:       12px;
  --radius-sm:    8px;
  --transition:   0.25s ease;
}

[data-theme="light"] {
  --bg:           #f5ede3;
  --bg-2:         #ede4d8;
  --card:         #faf7f2;
  --border:       #ddd0c0;
  --accent:       #c96033;
  --accent-light: #d4784a;
  --accent-glow:  rgba(201, 96, 51, 0.16);
  --accent-glow2: rgba(201, 96, 51, 0.08);
  --text:         #1a130a;
  --text-muted:   #7a6650;
  --text-dim:     #6a5842;
  --nav-bg:       rgba(245, 237, 227, 0.92);
  --shadow:       0 4px 24px rgba(201,96,51,0.10);
  --shadow-lg:    0 8px 40px rgba(201,96,51,0.14);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
strong { font-weight: 600; color: var(--text); }

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── Container ─── */
.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  letter-spacing: 0.01em;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow), 0 0 0 4px var(--accent-glow2);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ─── Nav ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: transform 0.3s ease, background var(--transition), border-color var(--transition);
}
.nav--hidden { transform: translateY(-100%); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--accent);
  transition: opacity var(--transition);
}
.nav__logo:hover { opacity: 0.8; }

.nav__links {
  display: flex;
  gap: 0.25rem;
}
.nav__links a {
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover {
  color: var(--text);
  background: var(--accent-glow2);
}

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

.theme-toggle {
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow2);
}

/* sun shown in dark mode, moon in light mode */
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  width: 38px; height: 38px;
  padding: 8px;
  cursor: pointer;
  transition: border-color var(--transition);
}
.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: background var(--transition);
}
.hamburger:hover { border-color: var(--accent); }

/* ─── Mobile Menu ─── */
.mobile-menu {
  position: fixed;
  top: 0; right: 0;
  width: min(320px, 85vw);
  height: 100dvh;
  background: var(--card);
  border-left: 1px solid var(--border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 2rem;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu.open { transform: translateX(0); }

.mobile-menu ul { display: flex; flex-direction: column; gap: 0.5rem; }
.mobile-menu .mobile-link {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 0.6rem 0;
  transition: color var(--transition);
  border-bottom: 1px solid var(--border);
}
.mobile-menu .mobile-link:hover { color: var(--accent); }

.mobile-menu__close {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition);
}
.mobile-menu__close:hover { border-color: var(--accent); color: var(--accent); }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  backdrop-filter: blur(4px);
}
.mobile-overlay.open { opacity: 1; pointer-events: all; }

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

.hero__blobs { display: none; }

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
  padding-top: 3rem;
  padding-bottom: 5rem;
}

.hero__content { max-width: 560px; }

.hero__greeting {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.hero__name {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero__role {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  min-height: 2em;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.hero__typewriter { color: var(--accent-light); font-weight: 600; }
.hero__cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero__tagline {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.65;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero__contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero__contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.hero__contact-link:hover { color: var(--accent); }
.hero__contact-link svg { flex-shrink: 0; }

.hero__photo { display: flex; align-items: center; justify-content: center; }
.hero__photo-wrap {
  width: 280px; height: 280px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 8px var(--accent-glow), 0 0 60px var(--accent-glow);
  flex-shrink: 0;
  transition: box-shadow var(--transition);
}
.hero__photo-wrap:hover {
  box-shadow: 0 0 0 10px var(--accent-glow), 0 0 80px rgba(204,107,64,0.22);
}
.hero__photo-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bounce 2s ease-in-out infinite;
  z-index: 1;
  transition: color var(--transition);
}
.hero__scroll-hint:hover { color: var(--accent); }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ─── Section Common ─── */
.section { padding: 6rem 0; }
.section--alt { background: var(--bg-2); transition: background var(--transition); }

.section__label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.section__title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
  line-height: 1.2;
}

/* ─── Fade-in Animation ─── */
.fade-in {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── About ─── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3.5rem;
  align-items: start;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.stat-card__num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.35rem;
}
.stat-card__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  line-height: 1.3;
}

.about__text p {
  color: var(--text-dim);
  margin-bottom: 1.1rem;
  font-size: 0.97rem;
}
.about__text p:last-child { margin-bottom: 0; }
.about__text strong { color: var(--text); }

/* ─── Timeline ─── */
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline__item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 1.25rem;
  padding-bottom: 2.5rem;
}
.timeline__item:last-child { padding-bottom: 0; }

.timeline__marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.35rem;
}
.timeline__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2.5px solid var(--bg-2);
  box-shadow: 0 0 0 4px var(--accent-glow);
  flex-shrink: 0;
  margin-bottom: 0.5rem;
}
.section--alt .timeline__dot { border-color: var(--bg-2); }
.timeline__line {
  flex: 1;
  width: 1.5px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
  opacity: 0.5;
  border-radius: 2px;
  min-height: 2rem;
}

.timeline__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.timeline__card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 24px var(--accent-glow);
}

.timeline__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.timeline__role {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.timeline__company {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.92rem;
}
.timeline__company-note {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.timeline__right { text-align: right; flex-shrink: 0; }
.timeline__period {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--accent-glow2);
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  margin-bottom: 0.35rem;
  white-space: nowrap;
}
.timeline__location {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline__bullets {
  padding-left: 1.15rem;
  list-style: disc;
  color: var(--text-dim);
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
}
.timeline__bullets li::marker { color: var(--accent); }

.timeline__tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.25rem 0.7rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--accent-glow2);
  transition: border-color var(--transition), color var(--transition);
}
.tag:hover { border-color: var(--accent); color: var(--accent-light); }
.tag--sm { font-size: 0.72rem; padding: 0.2rem 0.6rem; }

/* ─── Skills ─── */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.skills__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.skills__card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.skills__icon {
  width: 42px; height: 42px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

.skills__category {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.skills__pills { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pill {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.22rem 0.6rem;
  border-radius: 50px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  transition: background var(--transition), color var(--transition);
}
.skills__card:hover .pill {
  background: var(--accent-glow2);
  border-color: var(--border);
}

/* ─── Projects ─── */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project__card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project__card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.project__badge {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
}
.project__badge--live {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.project__icon {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.project__name {
  font-size: 1.05rem;
  font-weight: 700;
  padding-right: 4rem;
}

.project__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}

.project__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.project__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
  transition: gap var(--transition), opacity var(--transition);
}
.project__link:hover { gap: 0.65rem; opacity: 0.8; }

/* ─── Achievements ─── */
.achievements__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.achievement__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.achievement__card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.achievement__num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.achievement__text {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ─── Contact ─── */
.contact__container { text-align: center; }
.contact__sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 3rem;
  margin-top: -1.5rem;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  text-align: left;
}
.contact__link:hover {
  border-color: var(--accent);
  transform: translateX(4px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.contact__link-icon {
  width: 44px; height: 44px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.contact__link-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.contact__link-value {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

/* ─── Footer ─── */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
  transition: background var(--transition), border-color var(--transition);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ─── Back to Top ─── */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px var(--accent-glow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--accent-glow); }

/* ─── Responsive: Tablet ─── */
@media (max-width: 1024px) {
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .achievements__grid { grid-template-columns: repeat(2, 1fr); }
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__photo-wrap { width: 220px; height: 220px; }
}

@media (max-width: 860px) {
  .about__grid { grid-template-columns: 1fr; gap: 2rem; }
  .about__stats { grid-template-columns: repeat(4, 1fr); gap: 0.75rem; }
}

/* ─── Responsive: Mobile ─── */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .hamburger { display: flex; }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 2rem;
    gap: 2.5rem;
  }
  .hero__content { max-width: 100%; }
  .hero__photo { order: -1; }
  .hero__photo-wrap { width: 180px; height: 180px; margin: 0 auto; }
  .hero__ctas { justify-content: center; }
  .hero__contacts { justify-content: center; }
  .hero__role { justify-content: center; }

  .about__stats { grid-template-columns: repeat(2, 1fr); }

  .timeline__item { grid-template-columns: 20px 1fr; gap: 1rem; }
  .timeline__meta { flex-direction: column; gap: 0.5rem; }
  .timeline__right { text-align: left; }

  .skills__grid { grid-template-columns: 1fr; }
  .projects__grid { grid-template-columns: 1fr; }
  .achievements__grid { grid-template-columns: repeat(2, 1fr); }

  .section { padding: 4rem 0; }
  .footer__inner { justify-content: center; text-align: center; }
}

@media (max-width: 400px) {
  .achievements__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__contacts { flex-direction: column; align-items: center; gap: 0.65rem; }
}