/* ==============================================
   CSS VARIABLES
   ============================================== */
:root {
  --bg: #0A0A0F;
  --surface: #111128;
  --card: #1A1A35;
  --border: rgba(139, 92, 246, 0.2);
  --accent: #8B5CF6;
  --accent-light: #A78BFA;
  --accent-glow: rgba(139, 92, 246, 0.4);
  --text: #E2E8F0;
  --muted: #94A3B8;
  --success: #10B981;
  --font-main: 'Inter', sans-serif;
  --font-code: 'Fira Code', monospace;
  --transition: 0.3s ease;
  --navbar-height: 70px;
}

/* Light mode overrides */
[data-theme="light"] {
  --bg: #F8FAFC;
  --surface: #EEF2FF;
  --card: #FFFFFF;
  --border: rgba(139, 92, 246, 0.25);
  --text: #1E293B;
  --muted: #64748B;
}

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

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

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

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

ul { list-style: none; }
img { max-width: 100%; display: block; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-light); }

/* ==============================================
   UTILITY CLASSES
   ============================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section__label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 0.75rem;
  position: relative;
  padding-left: 2.5rem;
}
.section__label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2px;
  background: var(--accent);
}

.section__title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}
.btn--outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn--outline:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}
.btn--full {
  width: 100%;
  justify-content: center;
}

/* Tags */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--accent-light);
  background: rgba(139, 92, 246, 0.08);
}

/* ==============================================
   SCROLL ANIMATIONS
   ============================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal--left.reveal--visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal--right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal--right.reveal--visible {
  opacity: 1;
  transform: translateX(0);
}

/* ==============================================
   SCROLL PROGRESS BAR
   ============================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  z-index: 9999;
  width: 0%;
  transition: width 0.1s linear;
}

/* ==============================================
   NAVBAR
   ============================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: transform 0.3s ease, background var(--transition);
  height: var(--navbar-height);
}
[data-theme="light"] .navbar {
  background: rgba(248, 250, 252, 0.85);
}
.navbar--hidden {
  transform: translateY(-100%);
}

.navbar__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent);
  transition: text-shadow var(--transition);
}
.navbar__brand:hover {
  text-shadow: 0 0 20px var(--accent-glow);
}

.navbar__menu {
  display: flex;
  gap: 2rem;
}
.navbar__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition);
}
.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.navbar__link:hover,
.navbar__link--active {
  color: var(--accent);
}
.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.navbar__theme-toggle {
  background: none;
  border: 2px solid var(--border);
  color: var(--muted);
  font-size: 1.1rem;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.navbar__theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.navbar__hamburger-line {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar__hamburger--active .navbar__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.navbar__hamburger--active .navbar__hamburger-line:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger--active .navbar__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==============================================
   HERO
   ============================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--navbar-height);
}
.hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero__particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}
@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(0) scale(0); }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-100vh) scale(1); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 1.5rem;
}
.hero__greeting {
  font-size: 1.25rem;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 0.5rem;
}
.hero__name {
  font-size: 4.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.hero__typewriter {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--accent-light);
  min-height: 2.5rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-code);
}
.hero__typewriter-cursor {
  animation: cursorBlink 0.7s infinite;
  color: var(--accent);
}
@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero__tagline {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 650px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
}
.hero__badge-dot {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
}

.hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}
.hero__scroll-arrow {
  animation: scrollBounce 2s ease-in-out infinite;
  color: var(--muted);
  font-size: 1.25rem;
}
@keyframes scrollBounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ==============================================
   ABOUT
   ============================================== */
.about__grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 4rem;
}
.about__image-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.about__image-wrapper {
  position: relative;
  width: 220px;
  height: 220px;
  margin-bottom: 1.5rem;
}
.about__image-glow {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: conic-gradient(var(--accent), var(--accent-light), var(--accent));
  animation: glowSpin 4s linear infinite;
}
@keyframes glowSpin { 100% { transform: rotate(360deg); } }

.about__image-placeholder {
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--card), var(--surface));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 900;
  color: var(--accent);
  z-index: 1;
}
.about__status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid var(--border);
  color: var(--accent-light);
  font-size: 0.85rem;
  font-weight: 500;
}
.about__bio {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.about__details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.about__detail-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
}
.about__detail-row i {
  color: var(--accent);
  width: 20px;
  text-align: center;
}
.about__detail-row a {
  color: var(--accent-light);
}
.about__detail-row a:hover {
  color: var(--accent);
}

/* Stats */
.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.about__stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--card);
  border-radius: 16px;
  border-top: 3px solid var(--accent);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.about__stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 40px var(--accent-glow);
}
.about__stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
}
.about__stat-plus {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}
.about__stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* ==============================================
   TIMELINE (Education & Experience)
   ============================================== */
.timeline {
  position: relative;
  padding-left: 3rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-light), transparent);
}
.timeline__item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline__item:last-child { margin-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: -3.05rem;
  top: 1.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 3px var(--accent), 0 0 15px var(--accent-glow);
  transform: translateX(-50%);
  z-index: 1;
}
.timeline__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.timeline__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.timeline__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.timeline__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.timeline__subtitle,
.timeline__date,
.timeline__detail,
.timeline__location {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.timeline__subtitle i,
.timeline__date i,
.timeline__detail i,
.timeline__location i {
  color: var(--accent);
  width: 16px;
  text-align: center;
}
.timeline__coursework {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.timeline__coursework strong { color: var(--text); }

.timeline__list {
  margin: 1rem 0;
  padding-left: 1.25rem;
}
.timeline__list li {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  list-style: disc;
}
.timeline__tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* ==============================================
   EXPERIENCE
   ============================================== */
.experience__desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  margin-top: -1.5rem;
}
.experience__resume {
  text-align: center;
  margin-top: 3rem;
}

/* ==============================================
   PROJECTS
   ============================================== */
.projects__filters {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.projects__filter-btn {
  padding: 0.625rem 1.5rem;
  border: 2px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
}
.projects__filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.projects__filter-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.projects__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.projects__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px var(--accent-glow);
}
.projects__card--hidden { display: none; }

.projects__card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.projects__card-badge--datascience {
  background: rgba(245, 158, 11, 0.15);
  color: #F59E0B;
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.projects__card-badge--aiml {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.projects__card-badge--webdev {
  background: rgba(59, 130, 246, 0.15);
  color: #60A5FA;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.projects__card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
  color: var(--text);
}
.projects__card-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.projects__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}
.projects__card-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}
.projects__card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
}
.projects__card-link:hover { color: var(--accent); }
.projects__card-link--live { color: var(--accent-light); }
.projects__card-link--live:hover { color: var(--accent); }

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

/* ==============================================
   SKILLS & DOMAINS
   ============================================== */
.skills__domains {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.skills__domain-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all var(--transition);
}
.skills__domain-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--accent);
}
.skills__domain-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1.25rem;
  border-radius: 16px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.skills__domain-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}

/* Skill Bars */
.skills__bars {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.skills__bar-item { width: 100%; }
.skills__bar-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.skills__bar-track {
  width: 100%;
  height: 8px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
}
.skills__bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 100px;
  transition: width 1.2s ease-out;
}

/* Skill Tags */
.skills__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skills__tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--accent-light);
  background: rgba(139, 92, 246, 0.06);
  transition: all var(--transition);
}
.skills__tag:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--accent);
}

/* Soft Skills */
.skills__soft {
  text-align: center;
  margin-bottom: 3rem;
}
.skills__soft-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.skills__soft-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}
.skills__soft-tag {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px dashed var(--border);
  border-radius: 100px;
  color: var(--muted);
  transition: all var(--transition);
}
.skills__soft-tag:hover {
  color: var(--accent-light);
  border-color: var(--accent);
}

/* Marquee */
.skills__marquee {
  overflow: hidden;
  padding: 1.5rem 0;
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
}
.skills__marquee-track {
  display: flex;
  gap: 3rem;
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}
.skills__marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
}
.skills__marquee-item i {
  color: var(--accent);
  font-size: 1.25rem;
}
@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==============================================
   CERTIFICATIONS
   ============================================== */
.certifications__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.certifications__card {
  background: linear-gradient(135deg, var(--card), var(--surface));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  transition: all var(--transition);
}
.certifications__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 30px var(--accent-glow);
  border-color: var(--accent);
}
.certifications__card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.certifications__card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.certifications__card-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 0.5rem;
}
.certifications__org-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}
.certifications__org-badge--udemy {
  background: rgba(164, 53, 240, 0.15);
  color: #A435F0;
  border: 1px solid rgba(164, 53, 240, 0.3);
}
.certifications__org-badge--coursera {
  background: rgba(0, 86, 210, 0.15);
  color: #0056D2;
  border: 1px solid rgba(0, 86, 210, 0.3);
}
[data-theme="light"] .certifications__org-badge--coursera { color: #0056D2; }
.certifications__org-badge--nptel {
  background: rgba(255, 152, 0, 0.15);
  color: #FF9800;
  border: 1px solid rgba(255, 152, 0, 0.3);
}
.certifications__org-badge--other {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-light);
  border: 1px solid var(--border);
}
.certifications__card-date {
  font-size: 0.85rem;
  color: var(--muted);
}
.certifications__card-date i {
  color: var(--accent);
  margin-right: 0.3rem;
}
.certifications__view-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  transition: all var(--transition);
  margin-top: auto;
  cursor: pointer;
  position: relative;
  z-index: 2;
}
.certifications__view-btn:hover {
  background: var(--accent-light);
  box-shadow: 0 0 20px var(--accent-glow);
}
.certifications__view-btn--disabled {
  opacity: 0.6;
  pointer-events: none;
  cursor: not-allowed;
}

/* ==============================================
   MEDIA MODAL
   ============================================== */
.media-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}
.media-modal--open {
  display: block;
}
.media-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.media-modal--open .media-modal__backdrop {
  opacity: 1;
}
.media-modal__panel {
  position: relative;
  width: min(88vw, 680px);
  max-height: 88vh;
  margin: 6vh auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transform: translateY(24px) scale(0.98);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}
.media-modal--open .media-modal__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.media-modal__close {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  z-index: 3;
}
.media-modal__body {
  padding: 3.2rem 1.2rem 1.2rem;
  overflow: auto;
  max-height: 88vh;
}
.media-modal__image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: contain;
}

/* ==============================================
   CONTACT
   ============================================== */
.contact__subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 3rem;
  line-height: 1.7;
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact__info-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all var(--transition);
}
.contact__info-card:hover {
  border-color: var(--accent);
  transform: translateX(5px);
}
.contact__info-card > i {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact__info-card h4 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.15rem;
}
.contact__info-card span,
.contact__info-card a {
  font-size: 0.95rem;
  color: var(--text);
}
.contact__info-card a:hover { color: var(--accent); }

.contact__socials {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}
.contact__social-link {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--muted);
  transition: all var(--transition);
}
.contact__social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-3px);
}

.contact__quick-actions {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}
.contact__quick-actions .btn {
  padding: 0.65rem 1.25rem;
  font-size: 0.9rem;
}

/* Contact Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact__form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.contact__form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.contact__form-group input,
.contact__form-group textarea {
  padding: 0.875rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font-main);
  outline: none;
  transition: all var(--transition);
  resize: vertical;
}
.contact__form-group input:focus,
.contact__form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.contact__form-group input::placeholder,
.contact__form-group textarea::placeholder {
  color: var(--muted);
  opacity: 0.5;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--success);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  z-index: 9999;
  box-shadow: 0 10px 40px rgba(16, 185, 129, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}
.toast--visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ==============================================
   FOOTER
   ============================================== */
.footer {
  background: var(--surface);
  padding: 3rem 0 1.5rem;
  border-top: 1px solid var(--border);
}
.footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.footer__brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent);
}
.footer__nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__nav a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--accent); }

.footer__socials {
  display: flex;
  gap: 1rem;
}
.footer__socials a {
  color: var(--muted);
  font-size: 1.15rem;
  transition: color var(--transition);
}
.footer__socials a:hover { color: var(--accent); }

.footer__divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 1.5rem;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__bottom p {
  font-size: 0.85rem;
  color: var(--muted);
}
.footer__heart { color: #EF4444; }

/* ==============================================
   BACK TO TOP
   ============================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--accent-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
}
.back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

/* ==============================================
   RESPONSIVE — 1280px
   ============================================== */
@media (max-width: 1280px) {
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
  .certifications__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ==============================================
   RESPONSIVE — 768px (Tablet)
   ============================================== */
@media (max-width: 768px) {
  .navbar__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
    z-index: 999;
  }
  .navbar__menu--open { right: 0; }
  .navbar__hamburger { display: flex; }

  .hero__name { font-size: 3rem; }
  .hero__typewriter { font-size: 1.15rem; }
  .section__title { font-size: 2rem; }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }
  .about__details { align-items: center; }
  .about__stats { grid-template-columns: repeat(3, 1fr); gap: 1rem; }

  .skills__domains { grid-template-columns: 1fr; }
  .projects__grid { grid-template-columns: 1fr; }
  .certifications__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .media-modal__panel { width: 94vw; max-height: 90vh; margin: 5vh auto; }

  .footer__top { flex-direction: column; text-align: center; }
  .footer__nav { justify-content: center; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

/* ==============================================
   RESPONSIVE — 480px (Mobile)
   ============================================== */
@media (max-width: 480px) {
  .hero__name { font-size: 2.5rem; }
  .hero__typewriter { font-size: 1rem; }
  .hero__cta { flex-direction: column; align-items: center; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .media-modal__body { padding: 3.2rem 0.9rem 0.9rem; }

  .section { padding: 60px 0; }
  .section__title { font-size: 1.75rem; margin-bottom: 2rem; }

  .about__stats { grid-template-columns: 1fr; }
  .about__image-wrapper { width: 180px; height: 180px; }
  .certifications__grid { grid-template-columns: 1fr; }
  .contact__socials { justify-content: center; }
  .contact__quick-actions { flex-direction: column; }
}

/* ==============================================
   RESPONSIVE — 360px (Small Mobile)
   ============================================== */
@media (max-width: 360px) {
  .container { padding: 0 1rem; }
  .hero__name { font-size: 2rem; }
  .navbar__brand { font-size: 1.15rem; }
  .timeline { padding-left: 2rem; }
  .timeline__dot { left: -2.05rem; }
}