/* ================================================================
   NGONI MUJURU — Personal Website
   Custom CSS Design System
   ================================================================ */

/* ----------------------------------------------------------------
   1. DESIGN TOKENS
   ---------------------------------------------------------------- */
:root {
  /* Colors */
  --clr-bg-dark:      #0b1120;
  --clr-bg-dark-2:    #111827;
  --clr-bg-card-dark: #1a2236;
  --clr-bg-light:     #f8fafc;
  --clr-bg-white:     #ffffff;
  --clr-bg-card-light:#ffffff;

  --clr-accent:       #06b6d4;   /* cyan */
  --clr-accent-dark:  #0891b2;
  --clr-accent-glow:  rgba(6, 182, 212, 0.25);
  --clr-purple:       #8b5cf6;
  --clr-purple-light: #a78bfa;

  --clr-text-light:   #f1f5f9;
  --clr-text-muted-light: #94a3b8;
  --clr-text-dark:    #0f172a;
  --clr-text-body:    #334155;
  --clr-text-muted:   #64748b;
  --clr-border-dark:  rgba(255,255,255,0.08);
  --clr-border-light: #e2e8f0;

  /* Gradient */
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
  --gradient-dark:   linear-gradient(180deg, #0b1120 0%, #111827 100%);

  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, sans-serif;
  --font-body:    'Inter', -apple-system, sans-serif;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.15);
  --shadow-accent: 0 8px 32px rgba(6,182,212,0.2);

  /* Transitions */
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Nav height */
  --nav-height: 68px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-text-body);
  background: var(--clr-bg-white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ----------------------------------------------------------------
   3. UTILITIES
   ---------------------------------------------------------------- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ----------------------------------------------------------------
   4. NAVIGATION
   ---------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(11, 17, 32, 0.95);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--clr-border-dark);
}

.nav__container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.375rem;
  letter-spacing: -0.5px;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  color: var(--clr-text-muted-light);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
  border-radius: var(--radius-full);
}

.nav__link:hover,
.nav__link.active {
  color: var(--clr-text-light);
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
}

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

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text-light);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

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

/* ----------------------------------------------------------------
   5. BUTTONS
   ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}

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

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(6,182,212,0.35);
}

.btn--outline {
  background: transparent;
  border-color: rgba(255,255,255,0.3);
  color: var(--clr-text-light);
}

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

/* ----------------------------------------------------------------
   6. HERO
   ---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--clr-bg-dark);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Subtle grid pattern */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(6,182,212,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,182,212,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Glow blobs */
.hero::after {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__container {
  position: relative;
  z-index: 2;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-xl);
  min-height: 100vh;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.25);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
  width: fit-content;
}

.hero__badge-dot {
  width: 7px;
  height: 7px;
  background: var(--clr-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

.hero__name {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--clr-text-light);
  margin-bottom: 0.5rem;
}

.hero__name-first {
  display: block;
}

.hero__name-last {
  display: block;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 500;
  color: var(--clr-text-muted-light);
  line-height: 1.4;
  margin-bottom: var(--space-md);
}

.hero__title-line {
  display: block;
  color: var(--clr-purple-light);
}

.hero__bio {
  font-size: 1.0625rem;
  color: var(--clr-text-muted-light);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.hero__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--clr-text-muted-light);
  font-size: 0.875rem;
  transition: color var(--transition);
}

a.hero__meta-item:hover {
  color: var(--clr-accent);
}

.hero__meta-item i {
  font-size: 0.8rem;
  color: var(--clr-accent);
}

.hero__meta-divider {
  color: var(--clr-text-muted-light);
  opacity: 0.4;
}

/* Photo / Visual side */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__photo-frame {
  position: relative;
  width: 340px;
  height: 340px;
}

.hero__photo-ring {
  position: absolute;
  border-radius: 50%;
  animation: spin 12s linear infinite;
}

.hero__photo-ring--outer {
  inset: -16px;
  border: 2px solid transparent;
  background: var(--gradient-accent) border-box;
  -webkit-mask:
    linear-gradient(#fff 0 0) padding-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask:
    linear-gradient(#fff 0 0) padding-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0.6;
}

.hero__photo-ring--inner {
  inset: -8px;
  border: 1px dashed rgba(139,92,246,0.4);
  animation-duration: 20s;
  animation-direction: reverse;
}

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

.hero__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  border: 4px solid var(--clr-bg-dark);
  position: relative;
  z-index: 1;
}

/* Floating stat chips */
.hero__stat {
  position: absolute;
  background: var(--clr-bg-card-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  animation: float 4s ease-in-out infinite;
}

.hero__stat-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--clr-accent);
  line-height: 1;
}

.hero__stat-label {
  font-size: 0.7rem;
  color: var(--clr-text-muted-light);
  font-weight: 500;
  white-space: nowrap;
}

.hero__stat i {
  font-size: 1.1rem;
  color: var(--clr-accent);
}

.hero__stat--1 { bottom: 30px; left: -20px; animation-delay: 0s; }
.hero__stat--2 { top: 40px;    right: -30px; animation-delay: 1.5s; }
.hero__stat--3 { bottom: 100px; right: -40px; animation-delay: 0.8s; }

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

/* Scroll CTA */
.hero__scroll-cta {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--clr-text-muted-light);
  font-size: 0.8rem;
  transition: color var(--transition);
  align-self: center;
}

.hero__scroll-cta:hover { color: var(--clr-accent); }

.hero__scroll-cta i {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

/* ----------------------------------------------------------------
   7. SECTION COMMON
   ---------------------------------------------------------------- */
.section {
  padding: var(--space-2xl) 0;
}

.section--light {
  background: var(--clr-bg-light);
}

.section--dark {
  background: var(--clr-bg-dark-2);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--space-xs);
}

.section__header--light .section__eyebrow {
  color: var(--clr-accent);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  color: var(--clr-text-dark);
}

.section__header--light .section__title {
  color: var(--clr-text-light);
}

.section__subtitle {
  margin-top: var(--space-sm);
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ----------------------------------------------------------------
   8. ABOUT
   ---------------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about__lead {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--clr-text-dark);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.about__text p {
  color: var(--clr-text-body);
  margin-bottom: var(--space-sm);
  line-height: 1.75;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.about__stat {
  text-align: center;
  padding: var(--space-md) var(--space-sm);
  background: var(--clr-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--clr-border-light);
}

.about__stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.about__stat-label {
  font-size: 0.775rem;
  color: var(--clr-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about__expertise-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-text-dark);
  margin-bottom: var(--space-md);
}

.expertise__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.expertise__item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.expertise__icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(139,92,246,0.12));
  border: 1px solid rgba(6,182,212,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  font-size: 1rem;
}

.expertise__item strong {
  display: block;
  font-weight: 600;
  color: var(--clr-text-dark);
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.expertise__item p {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
}

/* ----------------------------------------------------------------
   9. SKILLS
   ---------------------------------------------------------------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.skill-card {
  background: var(--clr-bg-card-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition), transform var(--transition);
}

.skill-card:hover {
  border-color: rgba(6,182,212,0.4);
  transform: translateY(-3px);
}

.skill-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.skill-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text-light);
  margin-bottom: var(--space-sm);
}

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

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-text-muted-light);
  transition: all var(--transition);
}

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

.tag--accent {
  background: rgba(6,182,212,0.12);
  border-color: rgba(6,182,212,0.3);
  color: var(--clr-accent);
}

/* Certifications row */
.certs__row {
  border-top: 1px solid var(--clr-border-dark);
  padding-top: var(--space-xl);
}

.certs__title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted-light);
  margin-bottom: var(--space-md);
  text-align: center;
}

.certs__grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.cert-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--clr-bg-card-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), transform var(--transition);
}

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

.cert-card__icon {
  font-size: 1.5rem;
  color: var(--clr-accent);
}

.cert-card__name {
  display: block;
  font-weight: 600;
  color: var(--clr-text-light);
  font-size: 0.9rem;
}

.cert-card__year {
  font-size: 0.775rem;
  color: var(--clr-text-muted-light);
}

/* ----------------------------------------------------------------
   10. EXPERIENCE TIMELINE
   ---------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-purple), rgba(139,92,246,0.1));
  border-radius: var(--radius-full);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline__item.visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline__dot {
  position: absolute;
  left: -36px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gradient-accent);
  border: 3px solid var(--clr-bg-light);
  box-shadow: 0 0 0 2px var(--clr-accent);
  z-index: 1;
}

.timeline__card {
  background: var(--clr-bg-white);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.timeline__card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(6,182,212,0.3);
  transform: translateX(4px);
}

.timeline__card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.timeline__company {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-text-dark);
  margin-bottom: 2px;
}

.timeline__role {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-accent);
}

.timeline__period {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  background: var(--clr-bg-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--clr-border-light);
  white-space: nowrap;
}

.timeline__bullets {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline__bullets li {
  font-size: 0.9rem;
  color: var(--clr-text-body);
  padding-left: 1.25rem;
  position: relative;
  line-height: 1.55;
}

.timeline__bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  opacity: 0.6;
}

.timeline__award {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-sm);
  padding: 10px 14px;
  background: linear-gradient(135deg, rgba(234,179,8,0.08), rgba(251,146,60,0.06));
  border: 1px solid rgba(234,179,8,0.2);
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  color: #b45309;
  font-weight: 500;
}

.timeline__award i {
  color: #d97706;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ----------------------------------------------------------------
   11. EDUCATION
   ---------------------------------------------------------------- */
.education__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.edu-card {
  position: relative;
  background: var(--clr-bg-card-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s ease;
}

.edu-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.edu-card:hover {
  border-color: rgba(6,182,212,0.4);
}

.edu-card__year-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: rgba(255,255,255,0.04);
  letter-spacing: -2px;
  pointer-events: none;
}

.edu-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.edu-card__institution {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-accent);
  margin-bottom: 4px;
}

.edu-card__degree {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-text-light);
  margin-bottom: var(--space-sm);
}

.edu-card__details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.edu-card__details li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--clr-text-muted-light);
  line-height: 1.45;
}

.edu-card__details li i {
  color: var(--clr-accent);
  margin-top: 2px;
  flex-shrink: 0;
  font-size: 0.75rem;
}

/* ----------------------------------------------------------------
   12. CONTACT
   ---------------------------------------------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: var(--space-lg) var(--space-md);
  background: var(--clr-bg-white);
  border: 2px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  color: var(--clr-text-dark);
}

.contact-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
  color: var(--clr-text-dark);
}

.contact-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(139,92,246,0.1));
  border: 1px solid rgba(6,182,212,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--clr-accent);
  transition: background var(--transition), transform var(--transition);
}

.contact-card:hover .contact-card__icon {
  background: var(--gradient-accent);
  color: #fff;
  transform: scale(1.1);
}

.contact-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
}

.contact-card__value {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--clr-text-dark);
}

.contact-card__cta {
  font-size: 0.8rem;
  color: var(--clr-accent);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transform: translateY(4px);
  transition: all var(--transition);
}

.contact-card:hover .contact-card__cta {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------------------------------
   13. FOOTER
   ---------------------------------------------------------------- */
.footer {
  background: var(--clr-bg-dark);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--clr-border-dark);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.125rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.footer__links {
  display: flex;
  gap: var(--space-sm);
}

.footer__links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--clr-border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted-light);
  font-size: 0.875rem;
  transition: all var(--transition);
}

.footer__links a:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: rgba(6,182,212,0.08);
}

/* ----------------------------------------------------------------
   14. SCROLL ANIMATIONS
   ---------------------------------------------------------------- */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------------------------------
   15. RESPONSIVE
   ---------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: calc(var(--nav-height) + var(--space-lg));
    gap: var(--space-xl);
    min-height: unset;
    padding-bottom: var(--space-xl);
  }

  .hero__badge,
  .hero__actions,
  .hero__meta {
    justify-content: center;
  }

  .hero__bio {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__visual {
    order: -1;
  }

  .hero__photo-frame {
    width: 260px;
    height: 260px;
  }

  .hero__stat--1 { left: 0; }
  .hero__stat--2 { right: 0; }
  .hero__stat--3 { right: -10px; }

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

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

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

  .contact__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .timeline {
    padding-left: 28px;
  }

  .timeline__dot {
    left: -24px;
  }

  .timeline__card-header {
    flex-direction: column;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(11,17,32,0.97);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--clr-border-dark);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__toggle {
    display: flex;
  }
}

@media (max-width: 560px) {
  .section {
    padding: var(--space-xl) 0;
  }

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

  .hero__stat {
    display: none;
  }

  .hero__scroll-cta {
    display: none;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}