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

:root {
  --bg: #080808;
  --surface: #0f0f0f;
  --surface-2: #161616;
  --surface-3: #1c1c1c;
  --border: #1e1e1e;
  --border-hover: #303030;
  --text: #f0f0f0;
  --text-secondary: #878787;
  --text-muted: #3e3e3e;
  --accent: #F59E0B;
  --accent-hover: #FBBF24;
  --accent-dim: rgba(245, 158, 11, 0.08);
  --accent-glow: rgba(245, 158, 11, 0.18);
  --accent-border: rgba(245, 158, 11, 0.25);
  --green: #10B981;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
  --nav-height: 72px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

strong {
  color: var(--accent);
  font-weight: 600;
}

/* ============================================
   UTILITIES
   ============================================ */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 108px 0;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.6;
}

.section-header {
  margin-bottom: 64px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
}

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

.btn-secondary:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition), backdrop-filter var(--transition), border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom-color: var(--border);
}

.nav-container {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
  gap: 48px;
}

.nav-logo {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  color: var(--text);
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  flex-shrink: 0;
  background: var(--accent-dim);
}

.nav-cta:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  transition: all var(--transition);
  border-radius: 2px;
}

.nav-mobile {
  display: none;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 28px 24px;
}

.nav-mobile.open {
  display: block;
}

.nav-mobile ul {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-mobile a {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-mobile a:hover {
  color: var(--text);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 65% 55% at 50% -5%, rgba(245, 158, 11, 0.07), transparent 70%),
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 100% 100%, 68px 68px, 68px 68px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  padding-top: 56px;
  padding-bottom: 80px;
}

.hero-content {
  max-width: 740px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-hover);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 36px;
  background: var(--surface);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse-dot 2.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(16, 185, 129, 0); }
}

.hero-name {
  font-size: clamp(56px, 9vw, 96px);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.93;
  margin-bottom: 22px;
  background: linear-gradient(150deg, #ffffff 30%, rgba(255, 255, 255, 0.55) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(15px, 2.2vw, 20px);
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-desc {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--border);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 600px;
}

.hero-stat {
  background: var(--surface);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  transition: background var(--transition);
}

.hero-stat:hover {
  background: var(--surface-2);
}

.stat-number {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}

.stat-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 52px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scroll-anim 2.2s ease-in-out infinite;
}

@keyframes scroll-anim {
  0%, 100% { transform: scaleY(1) translateY(0); opacity: 1; }
  50% { transform: scaleY(0.6) translateY(8px); opacity: 0.4; }
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-photo {
  position: relative;
  width: 148px;
  height: 148px;
  margin-bottom: 32px;
}

.about-photo img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
  object-position: center top;
  display: block;
  border: 1px solid var(--border-hover);
  position: relative;
  z-index: 1;
}

.about-photo-ring {
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--radius-lg) + 4px);
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  z-index: 0;
}

.about-text .section-title {
  margin-bottom: 24px;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 15.5px;
  line-height: 1.78;
  margin-bottom: 18px;
}

.about-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 28px;
}

.about-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

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

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), transform var(--transition-slow);
}

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

.about-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  color: var(--accent);
  margin-bottom: 16px;
}

.about-card h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.about-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   RESULTS / METRICS
   ============================================ */
.results-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.metric-card {
  background: var(--surface);
  padding: 40px 32px;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background var(--transition);
}

.metric-card:hover {
  background: var(--surface-2);
}

.metric-card:hover::before {
  background: var(--accent);
}

.metric-card--featured {
  background: var(--accent-dim);
}

.metric-card--featured::before {
  background: var(--accent) !important;
}

.metric-card--featured:hover {
  background: rgba(245, 158, 11, 0.12);
}

.metric-value {
  font-size: clamp(42px, 5.5vw, 60px);
  font-weight: 900;
  letter-spacing: -0.045em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 14px;
}

.metric-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.metric-detail {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ============================================
   EXPERTISE
   ============================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.expertise-grid .expertise-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  max-width: calc(50% - 10px);
}

.expertise-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition-slow), box-shadow var(--transition-slow);
}

.expertise-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--accent-border);
}

.expertise-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 22px;
}

.expertise-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
  color: var(--text);
}

.expertise-card > p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.72;
  margin-bottom: 22px;
}

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

.expertise-tags li {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 9px;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.expertise-card:hover .expertise-tags li {
  border-color: var(--border-hover);
  color: var(--text);
}

/* ============================================
   EXPERIENCE / TIMELINE
   ============================================ */
.experience-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.timeline {
  position: relative;
  padding-left: 40px;
  max-width: 900px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 40px;
  width: 1px;
  background: linear-gradient(to bottom, var(--border-hover) 70%, transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

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

.timeline-dot {
  position: absolute;
  left: -46px;
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-hover);
  transition: all 0.3s ease;
}

.timeline-item:first-child .timeline-dot {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.timeline-item:hover .timeline-dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.timeline-content {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.timeline-item:hover .timeline-content {
  border-color: var(--border-hover);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 20px;
}

.timeline-title-group {
  flex: 1;
}

.timeline-current-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.timeline-role {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.timeline-date {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 3px;
  letter-spacing: 0.02em;
}

.timeline-bullets {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-bullets li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 18px;
  position: relative;
}

.timeline-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-hover);
}

/* ============================================
   TOOLS
   ============================================ */
.tools-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tools-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px 88px;
}

.tools-cat-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 15px;
  transition: all var(--transition);
  cursor: default;
}

.tool-badge:hover {
  border-color: var(--border-hover);
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tool-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.85;
}

/* ============================================
   EDUCATION
   ============================================ */
.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 820px;
}

.education-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition-slow);
}

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

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

.edu-info h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.015em;
}

.edu-info p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.edu-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================
   CONTACT
   ============================================ */
.contact-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 88px;
  align-items: start;
}

.contact-left .section-title {
  margin-bottom: 20px;
}

.contact-left > p {
  font-size: 15.5px;
  color: var(--text-secondary);
  line-height: 1.72;
  margin-bottom: 40px;
}

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

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--border-hover);
  transform: translateX(5px);
}

.contact-link--static {
  cursor: default;
}

.contact-link--static:hover {
  transform: none;
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-link-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.contact-link-value {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.contact-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.contact-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.contact-card > p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
  outline: none;
  line-height: 1.5;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0;
  background: var(--bg);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.footer-logo {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 4px;
  color: var(--text);
}

.footer-logo span {
  color: var(--accent);
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 24px;
  margin-top: 4px;
  margin-bottom: 4px;
}

.footer-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

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

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.fade-in:nth-child(2) { transition-delay: 0.08s; }
.fade-in:nth-child(3) { transition-delay: 0.16s; }
.fade-in:nth-child(4) { transition-delay: 0.24s; }
.fade-in:nth-child(5) { transition-delay: 0.32s; }
.fade-in:nth-child(6) { transition-delay: 0.40s; }

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .tools-categories {
    gap: 40px 56px;
  }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 44px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    max-width: 100%;
  }

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

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

  .tools-categories {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .about-cards {
    grid-template-columns: 1fr 1fr;
  }

  .timeline {
    padding-left: 28px;
  }

  .timeline-content {
    padding: 22px 20px;
  }

  .timeline-header {
    flex-direction: column;
    gap: 8px;
  }

  .timeline-dot {
    left: -34px;
  }

  .hero-scroll {
    display: none;
  }

  .hero-actions {
    margin-bottom: 52px;
  }

  .contact-card {
    padding: 24px;
  }
}

@media (max-width: 560px) {
  .hero-name {
    font-size: 52px;
  }

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

  .metric-card {
    padding: 28px 24px;
  }

  .about-cards {
    grid-template-columns: 1fr;
  }

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

  .stat-number {
    font-size: 24px;
  }

  .expertise-card {
    padding: 24px;
  }
}