/* ═══════════════════════════════════════════════
   RIZBHI NAWSHAD EVAN — Portfolio Styles
   Dark Spotify-inspired design system
═══════════════════════════════════════════════ */

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

:root {
  --bg-base:       #0a0a0a;
  --bg-surface:    #111111;
  --bg-elevated:   #1a1a1a;
  --bg-card:       #161616;
  --bg-hover:      #222222;
  --accent:        #1ed760;
  --accent-dim:    rgba(30,215,96,0.12);
  --accent-glow:   rgba(30,215,96,0.25);
  --gold:          #f5c842;
  --gold-dim:      rgba(245,200,66,0.12);
  --blue:          #4a9eff;
  --blue-dim:      rgba(74,158,255,0.12);
  --red:           #ff4d4d;
  --red-dim:       rgba(255,77,77,0.12);
  --purple:        #a855f7;
  --purple-dim:    rgba(168,85,247,0.12);
  --teal:          #2dd4bf;
  --teal-dim:      rgba(45,212,191,0.12);
  --text-white:    #ffffff;
  --text-primary:  #e8e8e8;
  --text-secondary:#a0a0a0;
  --text-muted:    #666666;
  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(255,255,255,0.14);
  --sidebar-w:     220px;
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     18px;
  --radius-xl:     24px;
  --shadow-card:   0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow:   0 0 40px rgba(30,215,96,0.15);
  --font-sans:     'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono:     'DM Mono', 'Fira Code', monospace;
  --transition:    0.2s ease;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--text-white); }
p { color: var(--text-secondary); line-height: 1.7; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ═══════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 28px 0;
  z-index: 100;
  overflow: hidden;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 28px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.logo-mark {
  width: 34px; height: 34px;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-text {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-white);
}

.sidebar-nav { flex: 1; padding: 0 10px; }

.sidebar-nav ul { display: flex; flex-direction: column; gap: 2px; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-white);
}

.nav-link.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.nav-icon { display: flex; align-items: center; flex-shrink: 0; opacity: 0.7; }
.nav-link.active .nav-icon { opacity: 1; }
.nav-link:hover .nav-icon { opacity: 1; }

.sidebar-footer {
  padding: 20px 20px 0;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.availability-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
}

.pulse-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ═══════════════════════════════════════════
   MOBILE HEADER
═══════════════════════════════════════════ */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  align-items: center;
  justify-content: space-between;
  z-index: 200;
}

.mobile-logo { display: flex; align-items: center; gap: 10px; }

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE NAV OVERLAY ── */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(16px);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav {
  position: absolute;
  top: 56px; left: 0; right: 0;
  padding: 20px;
}

.mobile-nav ul { display: flex; flex-direction: column; gap: 4px; }

.mobile-nav-link {
  display: block;
  padding: 14px 20px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.mobile-nav-link:hover {
  background: var(--bg-elevated);
  color: var(--accent);
}

/* ═══════════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════════ */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

/* ── SECTIONS ── */
.section {
  min-height: 100vh;
  padding: 80px 60px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.section-header {
  margin-bottom: 56px;
  max-width: 640px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

/* ═══════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════ */
.hero-section {
  flex-direction: row;
  align-items: center;
  gap: 60px;
  min-height: 100vh;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(30,215,96,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { flex: 1; max-width: 600px; position: relative; z-index: 1; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-name {
  display: flex;
  flex-direction: column;
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: 28px;
}

.name-line { display: block; color: var(--text-white); }
.name-line.accent { color: var(--accent); }

.hero-subtext {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover {
  background: #1bc653;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(30,215,96,0.3);
}

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

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-large { padding: 16px 36px; font-size: 16px; }

/* ── HERO STATS ── */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}

.stat-item { display: flex; flex-direction: column; gap: 2px; }

.stat-number {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ── HERO VISUAL ── */
.hero-visual {
  flex-shrink: 0;
  width: 340px;
  height: 340px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
  animation: spin linear infinite;
}

.ring-1 { width: 200px; height: 200px; animation-duration: 20s; border-color: rgba(30,215,96,0.15); }
.ring-2 { width: 280px; height: 280px; animation-duration: 30s; animation-direction: reverse; }
.ring-3 { width: 340px; height: 340px; animation-duration: 45s; border-color: rgba(255,255,255,0.04); }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.orbit-center {
  width: 80px; height: 80px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: #000;
  z-index: 2;
  box-shadow: 0 0 40px rgba(30,215,96,0.4);
}

.orbit-node {
  position: absolute;
  background: var(--bg-elevated);
  border: 1px solid var(--border-hover);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-white);
  white-space: nowrap;
}

.node-1 { top: 20px; right: 40px; color: var(--accent); border-color: var(--accent-dim); }
.node-2 { bottom: 60px; left: 10px; color: var(--gold); border-color: var(--gold-dim); }
.node-3 { bottom: 20px; right: 20px; color: var(--blue); border-color: var(--blue-dim); }

/* ═══════════════════════════════════════════
   IDENTITY SECTION
═══════════════════════════════════════════ */
.identity-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1000px;
}

.identity-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.identity-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.identity-card.card-featured {
  border-color: rgba(30,215,96,0.2);
  background: linear-gradient(135deg, rgba(30,215,96,0.05) 0%, var(--bg-card) 60%);
}

.identity-card.card-accent {
  border-color: rgba(74,158,255,0.2);
  background: linear-gradient(135deg, rgba(74,158,255,0.05) 0%, var(--bg-card) 60%);
}

.identity-card-icon {
  width: 52px; height: 52px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent);
}

.card-accent .identity-card-icon { color: var(--blue); }

.identity-card-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.identity-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.identity-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.identity-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── TAGS ── */
.tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════
   BIOGRAPHY SECTION
═══════════════════════════════════════════ */
.bio-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: start;
  max-width: 1100px;
}

.bio-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.bio-lead {
  font-size: 18px !important;
  color: var(--text-primary) !important;
  font-weight: 500;
}

.bio-standards {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.bio-standards-title, .bio-domains-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.standards-list { display: flex; flex-direction: column; gap: 16px; }

.standard-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.standard-icon {
  width: 22px; height: 22px;
  background: var(--accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.standard-item strong {
  display: block;
  font-size: 13px;
  color: var(--text-white);
  margin-bottom: 3px;
}

.standard-item p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

.bio-domains {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.domain-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.domain-pill:last-child { border-bottom: none; }

.domain-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-green { background: var(--accent); }
.dot-blue  { background: var(--blue); }
.dot-purple { background: var(--purple); }

/* ═══════════════════════════════════════════
   SKILLS SECTION
═══════════════════════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1100px;
}

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.skill-group:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.skill-group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.skill-group-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-white);
}

.skill-group-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-group-icon.green  { background: var(--accent-dim);  color: var(--accent); }
.skill-group-icon.gold   { background: var(--gold-dim);    color: var(--gold); }
.skill-group-icon.blue   { background: var(--blue-dim);    color: var(--blue); }
.skill-group-icon.red    { background: var(--red-dim);     color: var(--red); }
.skill-group-icon.purple { background: var(--purple-dim);  color: var(--purple); }
.skill-group-icon.teal   { background: var(--teal-dim);    color: var(--teal); }

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

.skill-list li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 14px;
  position: relative;
}

.skill-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 4px; height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
}

/* ═══════════════════════════════════════════
   SERVICES SECTION
═══════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1100px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.service-card.service-card-featured {
  border-color: rgba(30,215,96,0.25);
  background: linear-gradient(135deg, rgba(30,215,96,0.06) 0%, var(--bg-card) 60%);
}

.service-number {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.service-icon {
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0.8;
}

.service-card-featured .service-icon { opacity: 1; }

.service-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ═══════════════════════════════════════════
   WORK / CASE STUDIES
═══════════════════════════════════════════ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1100px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.case-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.case-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.case-number {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.case-domain {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

.domain-gold   { background: var(--gold-dim);   color: var(--gold); }
.domain-green  { background: var(--accent-dim); color: var(--accent); }
.domain-blue   { background: var(--blue-dim);   color: var(--blue); }
.domain-red    { background: var(--red-dim);    color: var(--red); }
.domain-teal   { background: var(--teal-dim);   color: var(--teal); }
.domain-purple { background: var(--purple-dim); color: var(--purple); }

.case-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
}

.case-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* ── CASE DETAILS (expandable) ── */
.case-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.case-details.open { max-height: 600px; }

.case-detail-block {
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

.case-detail-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.case-detail-block p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── TOGGLE BUTTON ── */
.case-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 4px;
}

.case-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.toggle-icon {
  transition: transform 0.3s ease;
}

.case-toggle[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

/* ═══════════════════════════════════════════
   PROCESS SECTION
═══════════════════════════════════════════ */
.process-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  align-items: center;
  max-width: 1000px;
}

.process-steps { display: flex; flex-direction: column; gap: 0; }

.process-step {
  display: flex;
  gap: 20px;
  position: relative;
}

.step-connector {
  position: absolute;
  left: 19px;
  top: 44px;
  width: 2px;
  height: calc(100% - 20px);
  background: var(--border);
}

.step-marker {
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: var(--bg-elevated);
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  transition: all var(--transition);
}

.process-step:hover .step-marker {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.step-marker.last { border-color: var(--accent); background: var(--accent-dim); }

.step-number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
}

.step-marker.last .step-number { color: var(--accent); }
.process-step:hover .step-number { color: var(--accent); }

.step-content {
  padding: 8px 0 32px;
  flex: 1;
}

.step-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.step-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── PROCESS VISUAL ── */
.process-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-circle {
  width: 240px; height: 240px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-circle-inner {
  width: 140px; height: 140px;
  background: var(--bg-elevated);
  border: 2px solid rgba(30,215,96,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.process-circle-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  text-align: center;
  line-height: 1.4;
}

.process-circle-svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  animation: spin 20s linear infinite;
}

/* ═══════════════════════════════════════════
   CONTACT SECTION
═══════════════════════════════════════════ */
.contact-section {
  min-height: 80vh;
  justify-content: space-between;
  border-bottom: none;
}

.contact-glow {
  position: absolute;
  bottom: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(30,215,96,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.contact-content { position: relative; z-index: 1; }

.contact-header { max-width: 600px; }

.contact-actions { margin-bottom: 32px; }

.contact-standards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-standard-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.contact-standard-item svg { color: var(--accent); flex-shrink: 0; }

/* ── FOOTER ── */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 48px;
  margin-top: 60px;
  border-top: 1px solid var(--border);
}

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

.footer-logo {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-white);
}

.footer-tagline {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════
   MOBILE BOTTOM NAV
═══════════════════════════════════════════ */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  z-index: 200;
  padding: 0 8px;
  align-items: center;
  justify-content: space-around;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 500;
  transition: all var(--transition);
}

.bottom-nav-item.active { color: var(--accent); }
.bottom-nav-item:hover { color: var(--text-white); }

/* ═══════════════════════════════════════════
   SCROLL REVEAL
═══════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════
   RESPONSIVE — TABLET
═══════════════════════════════════════════ */
@media (max-width: 1100px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .bio-layout { grid-template-columns: 1fr; gap: 40px; }
  .bio-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .process-layout { grid-template-columns: 1fr; }
  .process-visual { display: none; }
}

@media (max-width: 900px) {
  .hero-section { flex-direction: column; align-items: flex-start; gap: 40px; }
  .hero-visual { display: none; }
  .identity-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — MOBILE
═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .mobile-nav-overlay { display: block; }
  .mobile-bottom-nav { display: flex; }

  .main-content { margin-left: 0; }

  .section {
    padding: 80px 20px 100px;
    min-height: auto;
  }

  .hero-section { padding-top: 80px; min-height: 100vh; }

  .hero-name { font-size: clamp(36px, 10vw, 56px); }

  .hero-stats { gap: 16px; }
  .stat-number { font-size: 22px; }

  .skills-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .bio-sidebar { grid-template-columns: 1fr; }

  .section-title { font-size: clamp(24px, 6vw, 36px); }

  .site-footer { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-wrap: wrap; gap: 12px; }
  .stat-divider { display: none; }
}