/* ============================================================
   PORTFOLIO — arpitgautam.github.io
   Editorial / Refined — Plain CSS, no preprocessor
   ============================================================ */

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

:root {
  --color-bg:       #0c0c0f;
  --color-surface:  #151519;
  --color-border:   #2a2a32;
  --color-text:     #e8e6e1;
  --color-muted:    #9a978f;
  --color-accent:   #c9a86c;
  --color-accent-hover: #dfc08a;
  --color-dim:      #6b6860;

  --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --max-width: 1100px;
  --section-gap: 7rem;
}

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* ── Grain texture overlay ─────────────────────────────────── */
.grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* ── Selection ──────────────────────────────────────────────── */
::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

/* ── Layout helpers ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ── Navigation ────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 12, 15, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 1rem 1.5rem;
}

.nav-logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  text-decoration: none;
  gap: 0.65rem;
}

.nav-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--color-border);
  flex-shrink: 0;
  transition: border-color 0.3s;
}

.nav-logo:hover .nav-avatar {
  border-color: var(--color-accent);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  gap: 0.1rem;
}

.nav-logo:hover .nav-logo-name {
  color: var(--color-text);
}

.nav-logo-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.nav-logo-role {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
  text-decoration: none;
}

.nav-cta {
  padding: 0.45rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  transition: all 0.2s !important;
}

.nav-cta:hover {
  border-color: var(--color-accent) !important;
  color: var(--color-accent) !important;
}

/* ── Hero ──────────────────────────────────────────────────── */
#hero {
  padding: 4rem 0 var(--section-gap);
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

#hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease both;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1.75rem;
}

.hero-line {
  display: block;
}

.hero-line-1 {
  animation: fadeInUp 0.7s ease both;
  animation-delay: 0.15s;
}

.hero-line-2 {
  animation: fadeInUp 0.7s ease both;
  animation-delay: 0.3s;
}

.hero-line-3 {
  animation: fadeInUp 0.7s ease both;
  animation-delay: 0.45s;
  color: var(--color-accent);
}

.hero-line-3 em {
  font-style: italic;
}

.hero-line-4 {
  animation: fadeInUp 0.7s ease both;
  animation-delay: 0.6s;
}

.hero-period {
  color: var(--color-accent);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tagline-point {
  opacity: 0;
  animation: fadeInUp 0.5s ease both;
}

.hero-tagline-coda {
  font-size: 1.1rem;
  max-width: 780px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
  color: var(--color-accent);
  font-weight: 500;
}

.hero-tagline {
  list-style: none;
  padding: 0 0 0 1.25rem;
  border-left: 1px solid var(--color-border);
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 680px;
  margin-bottom: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-tagline li {
  position: relative;
  line-height: 1.7;
}

.hero-tagline li::before {
  content: '';
  position: absolute;
  left: calc(-1.25rem - 3px);
  top: 0.52em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1.5px solid var(--color-accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  animation: fadeInUp 0.7s ease both;
  animation-delay: 0.9s;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-muted);
  border: 2px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-muted);
  color: var(--color-text);
  text-decoration: none;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: fadeInUp 0.7s ease both;
  animation-delay: 1.3s;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollDrift 2s ease-in-out infinite;
}

@keyframes scrollDrift {
  0%, 100% { opacity: 0.5; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* ── Section base ──────────────────────────────────────────── */
section {
  padding: var(--section-gap) 0;
}

section + section {
  border-top: 1px solid var(--color-border);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-title.in-view {
  opacity: 1;
  transform: translateY(0);
}

.section-intro {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.1s;
}

.section-intro.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ── Timeline ──────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(
    to bottom,
    var(--color-accent),
    var(--color-border) 30%,
    var(--color-border) 70%,
    var(--color-accent)
  );
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateX(-16px);
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.timeline-item.in-view {
  opacity: 1;
  transform: translateX(0);
}

.timeline-item:nth-child(1).in-view { transition-delay: 0s; }
.timeline-item:nth-child(2).in-view { transition-delay: 0.12s; }
.timeline-item:nth-child(3).in-view { transition-delay: 0.24s; }
.timeline-item:nth-child(4).in-view { transition-delay: 0.36s; }
.timeline-item:nth-child(5).in-view { transition-delay: 0.48s; }
.timeline-item:nth-child(6).in-view { transition-delay: 0.60s; }

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 0.35rem;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  z-index: 1;
  transition: background 0.2s;
}

.timeline-item:hover .timeline-marker {
  background: var(--color-accent);
}

.timeline-content {
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  transition: border-color 0.2s, transform 0.2s;
}

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

.timeline-content--link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.timeline-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--color-dim);
  transition: color 0.2s;
}

.timeline-content--link:hover .timeline-read-more {
  color: var(--color-accent);
}

/* ── Milestone variant ─────────────────────────────────────── */
.timeline-marker--milestone {
  width: 4px;
  height: 36px;
  border-radius: 2px;
  transform: none;
  background: var(--color-accent);
  border: none;
  left: calc(-2.5rem + 5.5px);
  top: 0;
  box-shadow: 0 0 8px rgba(201, 168, 108, 0.4);
}

.timeline-milestone {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
}

/* ── The stone shape ───────────────────────────────────────── */
.milestone-stone {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  filter:
    drop-shadow(4px 0 0 rgba(120, 90, 40, 0.8))
    drop-shadow(0 6px 0 rgba(0, 0, 0, 0.5))
    drop-shadow(6px 6px 8px rgba(0, 0, 0, 0.6));
}

/* Rounded dome top */
.milestone-stone-cap {
  width: 120px;
  height: 60px;
  background: linear-gradient(160deg, #e8c97a 0%, #c9a86c 45%, #9a7a40 100%);
  border-radius: 60px 60px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.milestone-flag {
  width: 52px;
  height: 34px;
  display: flex;
  flex-direction: column;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
  margin-top: 6px;
}

.flag-stripe {
  flex: 1;
}

.flag-black  { background: #000000; }
.flag-red    { background: #DD0000; }
.flag-gold   { background: #FFCE00; }

/* Stone body — concrete-like with painted bands */
.milestone-stone-body {
  width: 120px;
  background:
    linear-gradient(to right, rgba(0,0,0,0.25) 0%, transparent 12%, transparent 88%, rgba(0,0,0,0.25) 100%),
    linear-gradient(to bottom, #4a4640 0%, #3a3530 60%, #2e2a26 100%);
  border-left: 3px solid #9a7a40;
  border-right: 3px solid #9a7a40;
  border-bottom: 3px solid #9a7a40;
  padding: 1.4rem 0.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  position: relative;
}

/* Painted stripe below the dome */
.milestone-stone-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(to right, #9a7a40, #e8c97a, #9a7a40);
}

.milestone-stone-body span {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: #f0d898;
  line-height: 1.45;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}

/* Tapered base — like a stone sitting in dirt */
.milestone-stone-foot {
  width: 130px;
  height: 16px;
  background: linear-gradient(to bottom, #2e2a26, #1e1a16);
  border-left: 3px solid #9a7a40;
  border-right: 3px solid #9a7a40;
  border-bottom: 3px solid #6b5020;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 8% 100%);
}

.milestone-desc {
  font-size: 1.05rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.inline-link {
  color: var(--color-accent);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.82em;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.inline-link:hover {
  opacity: 0.75;
}

.timeline-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: 0.4rem;
}

.timeline-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.timeline-content p {
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ── Stats Bar ─────────────────────────────────────────────── */
.stats-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1.25rem 0;
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0 2rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.stat-divider {
  width: 1px;
  height: 1.75rem;
  background: var(--color-border);
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .stats-inner {
    gap: 1.25rem 0;
    flex-wrap: wrap;
  }
  .stat-item {
    flex-basis: 50%;
    padding: 0.5rem 0;
  }
  .stat-divider {
    display: none;
  }
}

/* ── Domains ───────────────────────────────────────────────── */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
}

.domain-card {
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  opacity: 0;
  transform: translateY(20px);
}

.domain-card.in-view {
  opacity: 1;
  transform: translateY(0);
}

.domain-card:nth-child(1).in-view { transition-delay: 0s; }
.domain-card:nth-child(2).in-view { transition-delay: 0.06s; }
.domain-card:nth-child(3).in-view { transition-delay: 0.12s; }
.domain-card:nth-child(4).in-view { transition-delay: 0.18s; }
.domain-card:nth-child(5).in-view { transition-delay: 0.24s; }
.domain-card:nth-child(6).in-view { transition-delay: 0.30s; }

.domain-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.domain-icon {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.domain-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.domain-card p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.domain-orgs {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.85rem;
}

.domain-org {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  text-decoration: none;
  opacity: 0.75;
  transition: opacity 0.2s;
}

.domain-org:hover {
  opacity: 1;
}

/* ── About ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.about-grid.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 600px) {
  .about-grid {
    grid-template-columns: auto 1fr;
  }
}

.about-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  transition: border-color 0.3s;
}

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

.about-photo-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.3s;
}

.about-photo-placeholder span {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-accent);
}

.about-photo-placeholder:hover {
  border-color: var(--color-accent);
}

.about-text p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 0.98rem;
  line-height: 1.75;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-text strong {
  color: var(--color-text);
  font-weight: 600;
}

.text-ul {
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 3px;
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-list li {
  color: var(--color-muted);
  font-size: 0.98rem;
  line-height: 1.75;
  padding-left: 1.25rem;
  position: relative;
}

.about-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* ── Education ─────────────────────────────────────────────── */
.about-education {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.edu-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.edu-degree {
  font-size: 0.98rem;
  color: var(--color-text);
  line-height: 1.5;
}

.edu-school {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.2s;
}

.edu-school:hover {
  opacity: 1;
}

.edu-honours {
  color: var(--color-accent);
  font-size: 0.88rem;
}

.edu-formerly {
  color: var(--color-dim);
  font-size: 0.72rem;
}

.cert-link {
  text-decoration: none;
  color: var(--color-text);
  transition: color 0.2s;
}

.cert-link:hover {
  color: var(--color-accent);
}

.cert-why {
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin-top: 0.25rem;
}

/* ── Contact ───────────────────────────────────────────────── */
.contact-intro {
  color: var(--color-muted);
  margin-bottom: 2rem;
  max-width: 480px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  font-weight: 500;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--color-surface);
  opacity: 0;
  transform: translateY(12px);
}

.contact-link.in-view {
  opacity: 1;
  transform: translateY(0);
}

.contact-link:nth-child(2).in-view {
  transition-delay: 0.08s;
}

.contact-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
  transform: translateX(4px);
}

.contact-link svg {
  flex-shrink: 0;
  color: var(--color-dim);
  transition: color 0.2s;
}

.contact-link:hover svg {
  color: var(--color-accent);
}

.contact-link-label {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.contact-link-sub {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-dim);
  font-family: var(--font-mono);
}

.arrow-icon {
  transition: transform 0.2s;
}

.contact-link:hover .arrow-icon {
  transform: translate(2px, -2px);
}

/* ── Footer ────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-dim);
  font-size: 0.8rem;
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
}

.footer-version {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
  :root {
    --section-gap: 5rem;
  }

  .nav-inner {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
  }

  .nav-logo-role {
    display: none;
  }

  .nav-links {
    width: 100%;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .nav-links a {
    font-size: 0.78rem;
  }

  #hero {
    padding-top: 5rem;
    min-height: auto;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .domain-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .hero-scroll-hint {
    display: none;
  }

  .timeline {
    padding-left: 2rem;
  }
}