/* =========================================================
   SATYAJIT DAS — PROFESSIONAL PERSONAL PORTFOLIO
   Design Identity: Premium Dark Neon Glassmorphism
   ========================================================= */

/* 1. RESET & DESIGN TOKENS */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color System */
  --bg: #050506;
  --bg2: #090A0C;
  --card: #0E0F12;
  --card-hover: #131518;
  --card-border: rgba(255, 255, 255, 0.07);
  --card-border-hover: rgba(166, 255, 77, 0.28);
  
  --accent: #A6FF4D;
  --accent-light: #C4FF7A;
  --accent-dark: #7ED621;
  --accent-dim: rgba(166, 255, 77, 0.09);
  --accent-glow: rgba(166, 255, 77, 0.2);
  --accent-subtle: rgba(166, 255, 77, 0.04);

  --white: #FFFFFF;
  --text-main: #E2E3E8;
  --muted: #9A9AA4;
  --muted-dark: #5C5C66;
  --border: rgba(255, 255, 255, 0.07);

  /* Typography */
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  /* Layout & Geometry */
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-pill: 9999px;
  
  --container-max: 1180px;
  --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  width: 100%;
}

section {
  padding: 115px 0;
  position: relative;
}

.accent { color: var(--accent); }
.accent-gradient {
  background: linear-gradient(135deg, var(--white) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
strong { color: var(--white); font-weight: 600; }

/* 2. SECTION LABELS & HEADERS */
.section-header {
  margin-bottom: 52px;
}
.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.2;
  color: var(--white);
}
.section-sub {
  color: var(--muted);
  font-size: 1.02rem;
  max-width: 620px;
  margin-top: 14px;
  line-height: 1.65;
}

/* 3. REVEAL ANIMATION */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 4. NAVBAR */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), border-color var(--transition);
}
#navbar.scrolled {
  background: rgba(5, 5, 6, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  display: flex;
  align-items: center;
}
.nav-logo .dot {
  color: var(--accent);
  font-size: 1.1rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-cta-btn {
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(166, 255, 77, 0.25);
  transition: all var(--transition);
}
.nav-cta-btn:hover {
  background: var(--accent);
  color: #000;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  transition: border-color var(--transition), background var(--transition);
}
.hamburger:hover {
  border-color: var(--accent);
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 5. HERO SECTION */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 135px 0 85px;
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(166, 255, 77, 0.07) 0%, transparent 65%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse at center, black 35%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 80%);
  pointer-events: none;
}
.hero-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  width: 100%;
}
.hero-text {
  flex: 1.25;
}
.hero-tag-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.hero-badge-pill {
  font-size: 0.78rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(166, 255, 77, 0.22);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero-location-pill {
  font-size: 0.78rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-weight: 500;
}
.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 4.3vw, 3.85rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--white);
  margin-bottom: 16px;
  white-space: nowrap;
}
.hero-role {
  font-family: var(--font-head);
  font-size: clamp(1.15rem, 2.2vw, 1.65rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-sub {
  color: var(--muted);
  font-size: 1.02rem;
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 26px;
}
.typing-wrap {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 34px;
  min-height: 36px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  width: fit-content;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.typed-prefix {
  color: var(--muted);
  font-weight: 500;
}
.typed-text {
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-head);
}
.cursor {
  color: var(--accent);
  animation: blink 1s infinite;
  font-weight: 300;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* BUTTONS */
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-primary {
  padding: 13px 28px;
  background: var(--accent);
  color: #000;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-family: var(--font-head);
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  border: 2px solid var(--accent);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--accent-glow);
}
.btn-primary.full {
  width: 100%;
}

.btn-secondary {
  padding: 13px 26px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-family: var(--font-head);
  font-size: 0.92rem;
  border: 1.5px solid rgba(166, 255, 77, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}
.btn-secondary:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-outline {
  padding: 13px 26px;
  background: transparent;
  color: var(--white);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-family: var(--font-head);
  font-size: 0.92rem;
  border: 1.5px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(166, 255, 77, 0.04);
  transform: translateY(-3px);
}

/* AVATAR */
.hero-img-wrap {
  flex-shrink: 0;
}
.hero-avatar {
  position: relative;
  width: 270px;
  height: 270px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px dashed rgba(166, 255, 77, 0.35);
  animation: spin 24s linear infinite;
}
.avatar-ring-outer {
  position: absolute;
  inset: -22px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
@keyframes spin { to { transform: rotate(360deg); } }

.avatar-inner {
  width: 225px;
  height: 225px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #181b16, #0c0d0e 80%);
  border: 2px solid rgba(166, 255, 77, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(166, 255, 77, 0.12), inset 0 0 30px rgba(0, 0, 0, 0.8);
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
}
.hero-avatar:hover .avatar-inner {
  border-color: var(--accent);
  box-shadow: 0 0 80px rgba(166, 255, 77, 0.22);
}
.avatar-initials {
  font-family: var(--font-head);
  font-size: 3.9rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--accent);
}
.avatar-badge {
  position: absolute;
  bottom: 6px;
  right: -12px;
  background: rgba(14, 15, 18, 0.94);
  backdrop-filter: blur(12px);
  color: var(--white);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(166, 255, 77, 0.32);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  font-weight: 600;
  transition: opacity var(--transition);
}
.scroll-hint:hover {
  color: var(--accent);
}
.scroll-line {
  width: 1.5px;
  height: 36px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollDown 1.6s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 6. ABOUT SECTION */
.about-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: start;
}
.about-text-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.45);
}
.about-text-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(166, 255, 77, 0.04) 0%, transparent 60%);
  pointer-events: none;
}
.about-text-card .lead-text {
  font-size: 1.08rem;
  color: var(--white);
  font-weight: 500;
  line-height: 1.75;
  margin-bottom: 18px;
}
.about-text-card p {
  color: #B5B6C0;
  margin-bottom: 18px;
  font-size: 0.98rem;
  font-weight: 400;
  line-height: 1.75;
}
.about-text-card p:last-of-type {
  margin-bottom: 24px;
}
.about-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
.highlight-chip {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  transition: all var(--transition);
}
.highlight-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.info-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: all var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.info-card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(166, 255, 77, 0.05);
}
.info-icon {
  font-size: 1.55rem;
  flex-shrink: 0;
  line-height: 1;
}
.info-label {
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}
.info-value {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.45;
}
.featured-info-card {
  border-color: rgba(166, 255, 77, 0.22);
  background: radial-gradient(circle at 80% 20%, rgba(166, 255, 77, 0.06), var(--card) 70%);
}

/* 7. FOCUS PILLARS */
.pharma-section {
  background: var(--bg);
}
.pharma-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.pharma-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.pharma-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.pharma-card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-subtle);
}
.pharma-card:hover::before {
  transform: scaleX(1);
}
.pharma-icon {
  font-size: 2.1rem;
  margin-bottom: 16px;
}
.pharma-card h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--white);
}
.pharma-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

/* 8. EDUCATION (TIMELINE) */
.education-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.timeline {
  position: relative;
  padding-left: 36px;
  max-width: 900px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent) 0%, rgba(166, 255, 77, 0.4) 60%, transparent 100%);
}
.timeline-item {
  position: relative;
  margin-bottom: 36px;
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-dot {
  position: absolute;
  left: -34px;
  top: 14px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg2);
  box-shadow: 0 0 14px var(--accent-glow);
  transition: transform var(--transition);
}
.timeline-item:hover .timeline-dot {
  transform: scale(1.35);
  box-shadow: 0 0 20px var(--accent);
}
.timeline-content {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px 32px;
  transition: all var(--transition);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.timeline-content:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateX(4px);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.45), 0 0 25px rgba(166, 255, 77, 0.05);
}
.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}
.timeline-year {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.timeline-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.timeline-content h3 {
  font-family: var(--font-head);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.timeline-degree {
  color: var(--text-main);
  font-size: 0.96rem;
  font-weight: 500;
  margin-bottom: 12px;
}
.timeline-desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* 9. EXPERIENCE */
.experience-section {
  background: var(--bg);
}
.exp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.exp-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  position: relative;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.exp-card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(166, 255, 77, 0.05);
}
.exp-card.full-span {
  grid-column: 1 / -1;
  background: radial-gradient(circle at 12% 40%, rgba(166, 255, 77, 0.04), var(--card) 65%);
  border-color: rgba(166, 255, 77, 0.18);
}
.exp-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(166, 255, 77, 0.25);
}
.exp-company {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.exp-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
  padding-right: 80px;
}
.exp-date {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 16px;
}
.exp-card > p {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
  margin-bottom: 22px;
  flex: 1;
}
.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.exp-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  transition: all var(--transition);
}
.exp-tags span:hover {
  background: var(--accent-dim);
  border-color: rgba(166, 255, 77, 0.3);
  color: var(--accent);
}

/* 10. SKILLS */
.skills-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.top-skills-banner {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 18px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 34px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.banner-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--white);
}
.banner-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill-badge-highlight {
  background: rgba(166, 255, 77, 0.08);
  color: var(--accent);
  border: 1px solid rgba(166, 255, 77, 0.22);
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.skill-badge-highlight:hover {
  background: rgba(166, 255, 77, 0.14);
  border-color: rgba(166, 255, 77, 0.35);
  transform: translateY(-1px);
}

.skills-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn:hover {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--white);
  transform: translateY(-1px);
}
.tab-btn.active {
  border-color: rgba(166, 255, 77, 0.35);
  color: var(--white);
  background: rgba(166, 255, 77, 0.1);
  font-weight: 600;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

.skills-panel {
  display: none;
}
.skills-panel.active {
  display: block;
}
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 36px;
}
.skill-bar-wrap {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: all var(--transition);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}
.skill-bar-wrap:hover {
  background: var(--card-hover);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}
.skill-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--text-main);
}
.skill-label span:last-child {
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}
.skill-track {
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, rgba(166, 255, 77, 0.6), var(--accent));
  border-radius: var(--radius-pill);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.languages-box {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  margin-top: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.lang-header {
  display: flex;
  align-items: center;
  gap: 16px;
}
.lang-icon {
  font-size: 1.8rem;
}
.lang-header h3 {
  font-family: var(--font-head);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.lang-header p {
  color: var(--muted);
  font-size: 0.86rem;
}
.lang-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.lang-pill {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 18px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color var(--transition);
}
.lang-pill:hover {
  border-color: rgba(255, 255, 255, 0.14);
}
.lang-name {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
}
.lang-level {
  font-size: 0.74rem;
  color: var(--accent);
  font-weight: 500;
}

/* 11. PROJECTS */
.projects-section {
  background: var(--bg);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

/* Featured Project: MediTrack */
.project-card.featured-project-card {
  grid-column: 1 / -1;
  background: radial-gradient(circle at 85% 15%, rgba(166, 255, 77, 0.07), var(--card) 60%);
  border: 1px solid rgba(166, 255, 77, 0.28);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55), 0 0 35px var(--accent-subtle);
  padding: 42px 38px;
  border-radius: var(--radius-lg);
}
.featured-project-card .project-title {
  font-size: 2rem;
  color: var(--white);
}
.project-badge-featured {
  background: var(--accent);
  color: #000;
  font-family: var(--font-head);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}
.project-role-tag {
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.project-features-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 22px 0;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px;
  border-radius: var(--radius);
}
.feat-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--text-main);
  line-height: 1.6;
}
.feat-check {
  color: var(--accent);
  font-weight: 800;
}

/* Regular Project Cards */
.project-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.project-card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 30px var(--accent-subtle);
}
.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.project-status-pill {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(166, 255, 77, 0.2);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.project-num {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.2);
  line-height: 1;
  transition: -webkit-text-stroke var(--transition);
}
.project-card:hover .project-num {
  -webkit-text-stroke: 1px var(--accent);
}
.project-title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.35;
}
.project-desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 22px;
}
.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.tech-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.project-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.project-btn-primary {
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #000;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.project-btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}
.project-btn-secondary {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--white);
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 700;
  border: 1.5px solid var(--border);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.project-btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}
.project-btn-tag {
  font-size: 0.75rem;
  color: var(--muted-dark);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* 12. VISION & MISSION */
.mission-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.mission-block {
  background: var(--card);
  border: 1px solid rgba(166, 255, 77, 0.2);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  margin-bottom: 60px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.mission-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(166, 255, 77, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.mission-badge {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}
.mission-text {
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.65;
  max-width: 820px;
  margin: 0 auto;
}
.counters-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.counter-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 38px 28px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.counter-card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-5px);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.45), 0 0 25px rgba(166, 255, 77, 0.05);
}
.counter-num-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.counter-num {
  font-family: var(--font-head);
  font-size: 3.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.counter-plus {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
}
.counter-label {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  margin-top: 12px;
}

/* 13. CONTACT */
.contact-section {
  background: var(--bg);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 50px;
  align-items: start;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 28px;
}
.contact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1;
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 13px;
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}
.contact-item:hover .contact-icon {
  transform: scale(1.1) rotate(-4deg);
  border-color: var(--accent);
}
.contact-label {
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 4px;
}
.contact-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
  transition: color var(--transition);
}
a.contact-value:hover {
  color: var(--accent);
}
.contact-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}
.social-btn {
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition);
  border: 1.5px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.social-btn.linkedin:hover {
  border-color: #0A66C2;
  color: #0A66C2;
  background: rgba(10, 102, 194, 0.1);
  transform: translateY(-2px);
}
.social-btn.whatsapp:hover {
  border-color: #25D366;
  color: #25D366;
  background: rgba(37, 211, 102, 0.1);
  transform: translateY(-2px);
}
.social-btn.github:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.contact-form-wrap {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}
.contact-form-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 90% 10%, rgba(166, 255, 77, 0.03) 0%, transparent 60%);
  pointer-events: none;
}
.form-group {
  margin-bottom: 22px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.required-star {
  color: var(--accent);
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #4D4D57;
}
.form-feedback {
  margin-top: 16px;
  font-size: 0.92rem;
  text-align: center;
  min-height: 24px;
  font-weight: 600;
}
.form-feedback.success { color: var(--accent); }
.form-feedback.error { color: #FF6B6B; }

/* 14. FOOTER */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 50px 0 40px;
}
.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}
.footer-top {
  text-align: center;
  margin-bottom: 28px;
}
.footer-logo {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}
.footer-bio {
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 600px;
  margin: 0 auto;
}
.footer-divider {
  height: 1px;
  background: var(--border);
  margin: 28px 0;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 0.88rem;
}
.footer-sub {
  color: var(--muted-dark);
  font-size: 0.82rem;
}

/* 15. BACK TO TOP BUTTON */
#back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  border: none;
  font-size: 1.25rem;
  font-weight: 800;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}
#back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
#back-top:hover {
  background: var(--accent-light);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px var(--accent-glow);
}

/* =========================================================
   16. RESPONSIVE BREAKPOINTS
   ========================================================= */

/* Laptops / Small Desktops (<= 1024px) */
@media (max-width: 1024px) {
  .pharma-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-content {
    gap: 40px;
  }
  .hero-name {
    font-size: clamp(2.3rem, 4vw, 3.4rem);
  }
}

/* Tablets (<= 992px) */
@media (max-width: 992px) {
  .hero-name {
    white-space: normal;
  }
}

/* Tablets (<= 768px) */
@media (max-width: 768px) {
  section {
    padding: 85px 0;
  }
  
  /* Mobile Navigation Drawer */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 290px;
    background: rgba(10, 11, 12, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 32px;
    gap: 22px;
    transition: right 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    z-index: 1000;
  }
  .nav-links.open {
    right: 0;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.8);
  }
  .nav-links a {
    font-size: 1.15rem;
    font-weight: 600;
    width: 100%;
  }
  .nav-cta-btn {
    display: none;
  }
  .hamburger {
    display: flex;
  }

  /* Hero Mobile */
  .hero-section {
    padding: 125px 0 65px;
  }
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
    gap: 32px;
  }
  .hero-tag-wrap {
    justify-content: center;
  }
  .hero-name {
    font-size: clamp(2.2rem, 6vw, 3rem);
    white-space: normal;
  }
  .hero-sub {
    margin: 0 auto 24px;
  }
  .typing-wrap {
    margin: 0 auto 28px;
  }
  .hero-btns {
    justify-content: center;
  }
  .hero-avatar {
    width: 200px;
    height: 200px;
  }
  .avatar-inner {
    width: 165px;
    height: 165px;
  }
  .avatar-initials {
    font-size: 2.8rem;
  }
  .avatar-badge {
    bottom: -6px;
    right: -6px;
    font-size: 0.7rem;
    padding: 6px 12px;
  }

  /* Grids */
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .exp-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .counters-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .mission-block {
    padding: 40px 24px;
  }
  .about-text-card {
    padding: 28px 22px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

/* Mobile Phones (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }
  .hero-name {
    font-size: 2.3rem;
  }
  .hero-role {
    font-size: 1.15rem;
  }
  .pharma-grid {
    grid-template-columns: 1fr;
  }
  .contact-form-wrap {
    padding: 24px 18px;
  }
  .project-card.featured-project-card {
    padding: 26px 18px;
  }
  .hero-btns {
    flex-direction: column;
    width: 100%;
  }
  .hero-btns a {
    width: 100%;
  }
  .timeline {
    padding-left: 26px;
  }
  .timeline-dot {
    left: -24px;
    width: 12px;
    height: 12px;
  }
  .timeline-content {
    padding: 22px 18px;
  }
  .exp-card {
    padding: 26px 18px;
  }
  .exp-card h3 {
    padding-right: 0;
    margin-top: 24px;
  }
  .languages-box {
    padding: 22px 18px;
  }
  .skills-tabs {
    gap: 8px;
  }
  .tab-btn {
    padding: 8px 16px;
    font-size: 0.82rem;
  }
  .skill-bar-wrap {
    padding: 14px 16px;
  }
  #back-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}