/* ============================================
   Dr. Primus Vekuh - Portfolio
   Apple/Tesla Inspired Design System
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #000000;
  --color-bg-secondary: #0a0a0a;
  --color-bg-card: #111111;
  --color-bg-card-hover: #1a1a1a;
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-text-muted: #6e6e73;
  --color-accent: #2997ff;
  --color-accent-hover: #0077ed;
  --color-accent-glow: rgba(41, 151, 255, 0.15);
  --color-gradient-start: #2997ff;
  --color-gradient-end: #30d158;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);
  --font-display: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --max-width: 1200px;
  --section-padding: 120px 0;
  --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-smooth: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/* ---------- Typography ---------- */
.heading-xl {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.heading-lg {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-md {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.heading-sm {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

.text-body {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.text-small {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
}

.text-center {
  text-align: center;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
}

.nav-inner {
  max-width: var(--max-width);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

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

.nav-cta {
  padding: 8px 20px;
  border-radius: 980px;
  background: var(--color-accent);
  color: #fff !important;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.8) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 980px;
  background: rgba(41, 151, 255, 0.1);
  border: 1px solid rgba(41, 151, 255, 0.2);
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease-out;
}

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

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-title .name {
  display: block;
  background: linear-gradient(135deg, #ffffff 0%, #a1a1a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title .role {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-top: 8px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 1.6;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 64px;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 980px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(41, 151, 255, 0.3);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
  color: var(--color-text-primary);
}

.btn-icon {
  width: 18px;
  height: 18px;
}

/* ---------- Section Headers ---------- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-header .label {
  margin-bottom: 16px;
  display: block;
}

.section-header .heading-lg {
  margin-bottom: 16px;
}

.section-header .text-body {
  margin-top: 16px;
}

/* ---------- About Section ---------- */
.about {
  background: var(--color-bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: 24px;
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.about-image::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  z-index: -1;
  opacity: 0.3;
}

.about-content .label {
  margin-bottom: 16px;
  display: block;
}

.about-content .heading-lg {
  margin-bottom: 24px;
}

.about-content .text-body {
  margin-bottom: 32px;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-highlight {
  padding: 20px;
  border-radius: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

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

.about-highlight .icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.about-highlight .title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.about-highlight .desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---------- Expertise Section ---------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.expertise-card {
  padding: 40px 32px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.expertise-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.expertise-card:hover::before {
  opacity: 1;
}

.expertise-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
}

.expertise-card .heading-sm {
  margin-bottom: 12px;
}

.expertise-card .text-body {
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.expertise-tag {
  padding: 4px 12px;
  border-radius: 980px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ---------- Ventures Section ---------- */
.ventures {
  background: var(--color-bg-secondary);
}

.ventures-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.venture-card {
  padding: 32px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.venture-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.venture-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.venture-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  flex-shrink: 0;
}

.venture-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.venture-url {
  font-size: 0.8rem;
  color: var(--color-accent);
}

.venture-card .text-body {
  font-size: 0.95rem;
  flex-grow: 1;
}

.venture-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 980px;
  background: rgba(41, 151, 255, 0.1);
  border: 1px solid rgba(41, 151, 255, 0.15);
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-top: 16px;
  width: fit-content;
}

/* ---------- Experience Timeline ---------- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gradient-start), var(--color-gradient-end), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 48px;
}

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

.timeline-dot {
  position: absolute;
  left: -5px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 0 4px var(--color-accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- Certifications ---------- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.cert-card {
  padding: 24px;
  border-radius: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-fast);
}

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

.cert-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.cert-info .cert-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.cert-info .cert-issuer {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---------- Education ---------- */
.education {
  background: var(--color-bg-secondary);
}

.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.edu-card {
  padding: 40px 32px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-smooth);
}

.edu-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.edu-degree {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.edu-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.edu-school {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.edu-location {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.edu-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* ---------- Speaking / Impact ---------- */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.impact-card {
  padding: 40px 24px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-smooth);
}

.impact-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.impact-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.impact-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* ---------- Featured Section (Parallax) ---------- */
.featured-section {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.featured-section .bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.featured-section .bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.featured-section .bg-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, transparent 30%, transparent 70%, var(--color-bg) 100%);
}

.featured-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 80px 24px;
}

.featured-content .heading-lg {
  margin-bottom: 20px;
}

.featured-content .text-body {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Contact Section ---------- */
.contact {
  background: var(--color-bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info .heading-lg {
  margin-bottom: 20px;
}

.contact-info .text-body {
  margin-bottom: 40px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  color: var(--color-text-primary);
}

.contact-link:hover {
  border-color: var(--color-border-hover);
  transform: translateX(4px);
  color: var(--color-text-primary);
}

.contact-link .icon {
  font-size: 1.25rem;
}

.contact-link .link-text {
  font-size: 0.95rem;
}

.contact-link .link-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

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

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ---------- Footer ---------- */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

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

.footer-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- Particle Canvas ---------- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .expertise-grid,
  .ventures-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .edu-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-cta {
    display: none;
  }
  
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .expertise-grid,
  .ventures-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  
  .hero-stat .number {
    font-size: 2rem;
  }
  
  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .about-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}