/* ============================================================
   DESIGN SYSTEM — CSS CUSTOM PROPERTIES
============================================================ */
:root {
  /* Dark theme — Mindful & Elegant (Charcoal & Warm Sand) */
  --bg-primary:    #0e1011; /* deep charcoal */
  --bg-secondary:  #151719;
  --bg-card:       #1a1c1e;
  --bg-elevated:   #222427;

  --text-primary:   #e8e6e3; /* soft off-white */
  --text-secondary: #a09f9c;
  --text-muted:     #686765;

  --accent:        #d4b88b; /* soft warm gold/sand */
  --accent2:       #c1a57b;
  --accent-warm:   #e2cfa7;
  --accent-glow:   rgba(212, 184, 139, 0.08);
  --grad-main:     var(--accent); /* fallback for any remaining uses */
  --grad-warm:     var(--accent);

  --border:       rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --radius-sm: 4px; /* sharper, more elegant */
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --nav-h: 66px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.25s var(--ease);
}

[data-theme="light"] {
  --bg-primary:    #faf9f7; /* soft ivory */
  --bg-secondary:  #f2f0ec;
  --bg-card:       #ffffff;
  --bg-elevated:   #e8e5df;

  --text-primary:   #2d2c2a;
  --text-secondary: #666562;
  --text-muted:     #9a9996;

  --accent:        #a3845c; /* earthy gold */
  --accent2:       #8c704c;
  --accent-warm:   #b89a74;
  --accent-glow:   rgba(163, 132, 92, 0.08);
  --grad-main:     var(--accent);
  --grad-warm:     var(--accent);

  --border:       rgba(0, 0, 0, 0.06);
  --border-hover: rgba(0, 0, 0, 0.12);
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a {
  color: inherit;
  text-decoration: none;
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline var(--transition);
}

a:focus-visible {
  outline-color: var(--accent);
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* ============================================================
   SCROLLBAR
============================================================ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }

/* ============================================================
   SUBTLE NOISE OVERLAY
============================================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  opacity: 0.02;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px;
}

/* ============================================================
   TYPOGRAPHY HELPERS
============================================================ */
.t-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent2);
  font-weight: 500;
}

.text-accent {
  color: var(--accent);
  font-weight: inherit;
}

/* ============================================================
   LAYOUT UTILITIES
============================================================ */
.container {
  width: min(1120px, 100% - 48px);
  margin-inline: auto;
}

.section {
  padding: 110px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-secondary);
}

/* ============================================================
   FADE-UP ANIMATION
============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAV
============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    transform 0.3s var(--ease);
}

.nav.scrolled {
  background: rgba(6, 9, 15, 0.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}

[data-theme="light"] .nav.scrolled {
  background: rgba(244, 245, 247, 0.90);
}

.nav.hidden {
  transform: translateY(-100%);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 32px;
  height: 32px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 4px;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--border);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition);
}

.theme-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.theme-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: opacity var(--transition), transform var(--transition);
}

.nav-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.nav-cta:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hamburger {
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.2rem;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition: opacity 0.22s, transform 0.22s;
}

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

.mobile-menu a {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 10px 24px;
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
}

.mobile-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.mobile-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 42px; height: 42px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
}

/* ============================================================
   HERO
============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, black 25%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, black 25%, transparent 75%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}

.hero-orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(212, 184, 139, 0.05) 0%, transparent 65%);
  top: -140px; right: -120px;
}

.hero-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 65%);
  bottom: -60px; left: -80px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  padding: 48px 0 64px;
}

/* Big profile photo wrapper */
.hero-photo-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  padding: 8px;
  border-radius: 50%;
  border: 1px solid var(--border-hover);
  background: transparent;
  box-shadow: none;
}

.hero-photo {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: none;
  display: block;
}

.hero-avail {
  font-size: 0.75rem;
}

.hero-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  max-width: 640px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
  justify-content: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.hero-eyebrow-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.45; transform: scale(0.72); }
}

.hero-title {
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0;
}

.typed-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 0;
}

.typed-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent2);
}

.typed-text {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent2);
  font-weight: 500;
}

.typed-cursor {
  color: var(--accent2);
  animation: blink 0.9s step-end infinite;
  font-weight: 300;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 0;
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: none;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: none;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  border: 1px solid var(--border-hover);
  color: var(--text-secondary);
  background: transparent;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: var(--bg-card);
}

.btn-ghost:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Hero Panel Card (legacy, hidden) */
.hero-panel {
  display: none;
}

.hero-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-warm);
}

.profile-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.profile-img-wrap {
  width: 64px; height: 64px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--bg-elevated);
  background: var(--bg-elevated);
  flex-shrink: 0;
}

.profile-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-name {
  font-weight: 700;
  font-size: 0.98rem;
  margin-bottom: 3px;
}

.profile-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.panel-divider {
  height: 1px;
  background: var(--border);
}

.panel-stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.panel-stat-val {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.panel-stat-lbl {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 9px;
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}

.tech-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.avail-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #4ade80;
}

.avail-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 2s infinite;
}

/* ============================================================
   SECTION HEADER
============================================================ */
.sec-header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 64px;
}

.sec-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.sec-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.75;
}

/* ============================================================
   ABOUT
============================================================ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-lead {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.about-body {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

.about-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 6px;
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.about-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.about-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: border-color var(--transition);
}

.about-card:hover {
  border-color: var(--border-hover);
}

.about-card-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.about-card-value {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-primary);
}

.about-card-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   SKILLS
============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  cursor: default;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 36px var(--accent-glow);
}

.skill-icon {
  font-size: 1.65rem;
  color: var(--accent);
  width: 50px; height: 50px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  transition: background var(--transition);
}

.skill-card:hover .skill-icon {
  background: rgba(124, 108, 252, 0.22);
}

.skill-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.skill-card:hover .skill-name {
  color: var(--text-primary);
}

/* ============================================================
   PROJECTS
============================================================ */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.project-item:hover {
  border-color: var(--border-hover);
}

.project-header {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 26px 28px;
  cursor: pointer;
  user-select: none;
}

.project-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.project-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project-title-main {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: color var(--transition);
}

.project-item:hover .project-title-main {
  color: var(--accent);
}

.project-tags {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  padding: 3px 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-muted);
}

.project-arrow {
  width: 34px; height: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-shrink: 0;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.project-arrow i {
  transition: transform 0.3s var(--ease);
}

.project-item:hover .project-arrow {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.projects-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: -26px 0 26px;
}

.projects-filter-btn {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 7px 12px;
  border-radius: 999px;
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}

.projects-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

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

.projects-filter-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.project-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.42s var(--ease);
}

.project-body.open {
  max-height: 600px;
}

.project-body-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  padding: 0 28px 28px;
  align-items: start;
}

.project-body-inner > * {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.28s var(--ease), transform 0.35s var(--ease);
}

.project-body.open .project-body-inner > * {
  opacity: 1;
  transform: translateY(0);
}

.project-body.open .project-thumb {
  transition-delay: 0.04s;
}

.project-body.open .project-desc-area {
  transition-delay: 0.13s;
}

.project-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
  background: var(--bg-elevated);
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease), filter 0.45s var(--ease);
  transform-origin: center;
}

.project-item:hover .project-thumb img {
  transform: scale(1.035);
  filter: saturate(1.08) contrast(1.02);
}

.project-item.is-filter-hidden {
  display: none;
}

.projects-empty {
  display: none;
  margin-top: 6px;
  padding: 14px 16px;
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  background: var(--bg-card);
  font-size: 0.86rem;
}

.projects-empty.show {
  display: block;
}

.project-desc-area {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.project-desc {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.project-features-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-feature {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.project-feature::before {
  content: '→';
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  flex-shrink: 0;
}

.project-links-row {
  display: flex;
  gap: 10px;
  padding-top: 4px;
  flex-wrap: wrap;
}

.proj-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.83rem;
  font-weight: 600;
  transition: all var(--transition);
}

.proj-btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
}

.proj-btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.proj-btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.proj-btn-ghost {
  border: 1px solid var(--border-hover);
  color: var(--text-secondary);
  background: transparent;
}

.proj-btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.proj-btn-ghost:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   EDUCATION
============================================================ */
.education-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 72px;
}

.education-side {
  position: sticky;
  top: calc(var(--nav-h) + 36px);
  align-self: start;
}

.edu-side-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Timeline */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border);
}

.tl-item {
  padding: 0 0 44px 32px;
  position: relative;
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-dot {
  position: absolute;
  left: -5px;
  top: 7px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--text-muted);
  transition: border-color var(--transition), background var(--transition);
}

.tl-item:hover .tl-dot {
  border-color: var(--accent);
  background: var(--accent);
}

.tl-period {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.tl-degree {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.tl-school {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.tl-grade {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-muted);
}

/* ============================================================
   CONTACT
============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.contact-left {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-lead {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.contact-body {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), transform var(--transition);
}

.contact-row:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.contact-row:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.contact-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-hover);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.contact-copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.contact-copy-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.contact-icon {
  width: 40px; height: 40px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-lbl {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-val {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Contact Right Card */
.contact-right {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
}

.contact-right::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-warm));
}

.contact-right-title {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}

.contact-right-sub {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 28px;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 28px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.92rem;
  transition: opacity var(--transition), transform var(--transition);
  cursor: pointer;
}

.cta-link:hover {
  opacity: 0.88;
  transform: translateY(-2px);
}

.cta-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.resume-row {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 40px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.footer-location {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.8;
}

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-link i {
  font-size: 0.95rem;
}

/* ============================================================
   BACK TO TOP
============================================================ */
.back-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 42px; height: 42px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: all var(--transition);
  z-index: 90;
}

.back-top.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.copy-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(12px);
  opacity: 0;
  pointer-events: none;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  z-index: 95;
  transition: opacity var(--transition), transform var(--transition);
}

.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .project-thumb img,
  .copy-toast {
    transition: none;
  }
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1024px) {
  .container {
    width: min(900px, 100% - 40px);
  }

  .section {
    padding: 80px 0;
  }

  .about-layout,
  .contact-layout {
    gap: 48px;
  }

  .project-body-inner {
    gap: 24px;
  }
}

@media (max-width: 920px) {
  .hero-panel {
    display: none;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .education-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .education-side {
    position: static;
  }

  .project-body-inner {
    grid-template-columns: 1fr;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

@media (max-width: 768px) {
  .container {
    width: calc(100% - 36px);
  }

  .section {
    padding: 64px 0;
  }

  .sec-header {
    margin-bottom: 48px;
  }

  .sec-title {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }

  .hero-photo {
    width: 200px;
    height: 200px;
  }

  .hero-title {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-actions {
    gap: 10px;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
  }

  .about-lead {
    font-size: 1.15rem;
  }

  .contact-lead {
    font-size: clamp(1.4rem, 4vw, 1.8rem);
  }

  .contact-row {
    padding: 14px 16px;
    gap: 12px;
  }

  .contact-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .footer-links {
    gap: 16px;
  }
}

@media (max-width: 600px) {
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding: 56px 0;
  }

  .sec-header {
    margin-bottom: 40px;
  }

  .nav-logo {
    font-size: 0.85rem;
  }

  .nav-logo-mark {
    width: 28px;
    height: 28px;
    font-size: 0.65rem;
  }

  .hero-inner {
    padding: 40px 0 48px;
  }

  .hero-photo {
    width: 160px;
    height: 160px;
  }

  .hero-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-tags {
    gap: 6px;
    margin-top: 4px;
  }

  .tech-tag {
    font-size: 0.68rem;
    padding: 3px 8px;
  }

  .btn-primary,
  .btn-ghost {
    padding: 9px 18px;
    font-size: 0.85rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions a {
    width: 100%;
    justify-content: center;
  }

  .about-card {
    padding: 16px 18px;
  }

  .about-card-label {
    font-size: 0.65rem;
  }

  .about-links {
    gap: 10px;
  }

  .about-link {
    font-size: 0.8rem;
    padding: 7px 12px;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
  }

  .skill-card {
    padding: 16px 12px;
    gap: 8px;
  }

  .skill-icon {
    width: 40px;
    height: 40px;
    font-size: 1.4rem;
  }

  .skill-name {
    font-size: 0.75rem;
  }

  .project-header {
    grid-template-columns: 24px 1fr auto;
    gap: 12px;
    padding: 16px 14px;
  }

  .project-num {
    font-size: 0.68rem;
  }

  .project-title-main {
    font-size: 0.95rem;
  }

  .project-tag {
    font-size: 0.62rem;
  }

  .project-body-inner {
    padding: 0 14px 18px;
    gap: 14px;
  }

  .project-arrow {
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
  }

  .proj-btn {
    padding: 8px 14px;
    font-size: 0.78rem;
    gap: 5px;
  }

  .project-desc {
    font-size: 0.88rem;
  }

  .project-feature {
    font-size: 0.8rem;
  }

  .timeline::before {
    left: -6px;
  }

  .tl-item {
    padding: 0 0 32px 26px;
  }

  .tl-degree {
    font-size: 0.95rem;
  }

  .tl-school {
    font-size: 0.8rem;
  }

  .contact-items {
    gap: 8px;
  }

  .contact-row {
    padding: 12px 14px;
    gap: 10px;
    border-radius: var(--radius-sm);
  }

  .contact-icon {
    width: 32px;
    height: 32px;
    font-size: 0.95rem;
  }

  .contact-lbl {
    font-size: 0.65rem;
  }

  .contact-val {
    font-size: 0.85rem;
  }

  .contact-right {
    padding: 24px;
    border-radius: var(--radius-md);
  }

  .contact-right-title {
    font-size: 1.2rem;
  }

  .contact-right-sub {
    font-size: 0.88rem;
  }

  .cta-link {
    padding: 11px 22px;
    font-size: 0.88rem;
    width: 100%;
    justify-content: center;
  }

  .back-top {
    bottom: 18px;
    right: 18px;
    width: 40px;
    height: 40px;
    font-size: 0.95rem;
  }

  .footer-brand,
  .footer-location {
    font-size: 0.72rem;
  }

  .footer-link {
    font-size: 0.78rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: calc(100% - 28px);
  }

  .section {
    padding: 48px 0;
  }

  .nav-logo span {
    display: none;
  }

  .hero-title {
    font-size: clamp(1.4rem, 8vw, 2rem);
  }

  .hero-photo {
    width: 140px;
    height: 140px;
  }

  .sec-title {
    font-size: clamp(1.4rem, 6vw, 1.8rem);
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }

  .project-header {
    grid-template-columns: 20px 1fr auto;
  }

  .cta-link {
    flex-direction: column-reverse;
    gap: 6px;
  }

  .resume-row {
    margin-top: 20px;
    padding-top: 16px;
  }
}