/* ==========================================================================
   MUHAMMED NASHID - PERSONAL PORTFOLIO STYLESHEET
   Stack: Pure CSS3 (Vanilla)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES & RESET
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-dark: #070a12;
  --bg-primary: #0a0f1d;
  --bg-secondary: #0f172a;
  --bg-card: #131c31;
  --bg-card-hover: #18243f;
  --bg-card-subtle: #0d1424;

  /* Accent Colors */
  --accent-cyan: #00e5ff;
  --accent-blue: #38bdf8;
  --accent-electric: #2563eb;
  --accent-gradient: linear-gradient(135deg, #00e5ff 0%, #38bdf8 50%, #2563eb 100%);
  --accent-glow: rgba(0, 229, 255, 0.15);
  --accent-glow-subtle: rgba(56, 189, 248, 0.08);

  /* Borders & Dividers */
  --border-subtle: rgba(56, 189, 248, 0.12);
  --border-card: rgba(255, 255, 255, 0.07);
  --border-highlight: rgba(0, 229, 255, 0.35);

  /* Text Colors */
  --text-heading: #ffffff;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Typography Stacks (Pure System Fonts - No external CDN) */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(0, 229, 255, 0.12);

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout Spacing */
  --container-max-width: 1140px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.18), transparent 70%),
    radial-gradient(circle 600px at 100% 20%, rgba(0, 229, 255, 0.05), transparent 80%),
    radial-gradient(circle 500px at 0% 60%, rgba(37, 99, 235, 0.04), transparent 70%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 1rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--accent-cyan);
  color: #000000;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--transition-fast);
  text-decoration: none;
}

.skip-link:focus {
  top: 15px;
}

/* Global Focus Outline for Accessibility */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   2. BASE TYPOGRAPHY & LAYOUT UTILITIES
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

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

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

.section-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 2rem);
  padding-right: clamp(1rem, 4vw, 2rem);
}

.section {
  padding-top: clamp(4rem, 8vw, 6.5rem);
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
  position: relative;
}

.section-header {
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: var(--text-secondary);
  max-width: 650px;
  line-height: 1.55;
  margin-top: 0.5rem;
}

.section-divider {
  width: 50px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  margin-top: 1rem;
}

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

/* --------------------------------------------------------------------------
   3. NAVIGATION BAR
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(7, 10, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-card);
  z-index: 1000;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(7, 10, 18, 0.95);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.brand-logo {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-heading);
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-fast);
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.logo-bracket {
  color: var(--accent-cyan);
}

.logo-text {
  margin: 0 2px;
}

.primary-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-cyan);
  background-color: rgba(56, 189, 248, 0.08);
}

.nav-link.active {
  color: var(--text-heading);
  background-color: rgba(56, 189, 248, 0.12);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
}

/* Mobile Menu Toggle Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-fast), background-color var(--transition-fast);
}

.menu-toggle:hover .hamburger-bar {
  background-color: var(--accent-cyan);
}

/* Active Hamburguer State (Cross) */
.menu-toggle.is-active .hamburger-bar:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.menu-toggle.is-active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active .hamburger-bar:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   4. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-cyan);
  width: fit-content;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 2s infinite ease-in-out;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 600;
  color: var(--accent-blue);
  letter-spacing: -0.01em;
}

.hero-description {
  font-size: clamp(1rem, 1.8vw, 1.075rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
  margin-top: 0.5rem;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.45rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #070a12;
  box-shadow: 0 4px 16px rgba(0, 229, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(0, 229, 255, 0.4);
  color: #000000;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-heading);
  border-color: var(--border-card);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-highlight);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-card);
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--text-secondary);
  color: #ffffff;
  transform: translateY(-2px);
}

.icon-svg {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Hero Visual Column */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Profile Photo / Initials Placeholder Card */
.profile-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(19, 28, 49, 0.9) 0%, rgba(13, 20, 36, 0.9) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.profile-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(0, 229, 255, 0.2);
}

/* Squared Avatar Wrapper (Increased Size) */
.avatar-wrapper {
  position: relative;
  width: clamp(150px, 18vw, 180px);
  height: clamp(150px, 18vw, 180px);
  flex-shrink: 0;
  border-radius: 16px; /* Squared shape with modern rounded corners */
  padding: 3px;
  background: var(--accent-gradient);
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.35);
  overflow: hidden;
}

.profile-image {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc(100% - 6px);
  height: calc(100% - 6px);
  border-radius: 13px; /* Squared image shape */
  object-fit: cover;
  object-position: center 15%;
  background-color: var(--bg-primary);
  display: block;
  z-index: 2;
  transition: transform var(--transition-normal);
}

.profile-card:hover .profile-image {
  transform: scale(1.04);
}

/* Initials Placeholder when profile.jpg is not yet provided */
.initials-placeholder {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc(100% - 6px);
  height: calc(100% - 6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: linear-gradient(135deg, #0f1c38 0%, #070d1a 100%);
  color: var(--text-heading);
  position: relative;
  user-select: none;
  z-index: 1;
}

.initials-text {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.initials-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  opacity: 0.9;
  margin-top: 4px;
}

.profile-meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.profile-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.25;
}

.profile-role {
  font-size: 0.95rem;
  color: var(--accent-blue);
  font-weight: 600;
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 0.4rem;
}

.mini-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

/* Decorative Terminal Card */
.terminal-card {
  background-color: #0b1120;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  font-family: var(--font-mono);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background-color: #080c16;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background-color: #ef4444; }
.dot-yellow { background-color: #f59e0b; }
.dot-green { background-color: #10b981; }

.terminal-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.terminal-status {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 1px 6px;
  background-color: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-radius: 3px;
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 1rem 1.25rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.term-line {
  color: var(--text-primary);
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.term-prompt {
  color: var(--accent-cyan);
  font-weight: 700;
  user-select: none;
}

.term-cmd {
  color: #f1f5f9;
  font-weight: 600;
}

.term-arg {
  color: var(--text-secondary);
}

.term-output {
  padding-left: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.term-dim {
  color: var(--text-muted);
}

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

.text-green {
  color: #34d399;
}

.term-active {
  margin-top: 4px;
}

.term-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background-color: var(--accent-cyan);
  vertical-align: middle;
  animation: cursor-blink 1s infinite steps(2, start);
}

/* --------------------------------------------------------------------------
   5. ABOUT ME SECTION
   -------------------------------------------------------------------------- */
.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-normal);
}

.about-card:hover {
  border-color: var(--border-subtle);
}

.about-text-content {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.about-text-content .lead-text {
  color: var(--text-heading);
  font-weight: 500;
  font-size: 1.125rem;
  line-height: 1.7;
}

.about-key-highlights {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.highlight-item:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

.highlight-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background-color: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.highlight-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.highlight-desc {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--text-heading);
}

/* --------------------------------------------------------------------------
   6. TECHNICAL SKILLS SECTION
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.skill-category-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.skill-category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.skill-category-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.skill-category-card:hover::before {
  opacity: 1;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.card-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
}

.category-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.skill-chips-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background-color: var(--bg-card-subtle);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  font-size: 0.9125rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.skill-chip:hover {
  border-color: var(--accent-cyan);
  background-color: rgba(56, 189, 248, 0.08);
  transform: translateY(-1px);
}

.chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.chip-name {
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   7. INTERNSHIP & EDUCATION (TIMELINE & CARDS)
   -------------------------------------------------------------------------- */
.timeline-container {
  display: flex;
  flex-direction: column;
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.5rem;
  position: relative;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.marker-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 3px solid var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan);
  margin-top: 1.5rem;
  z-index: 2;
}

.marker-line {
  flex-grow: 1;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan) 0%, rgba(56, 189, 248, 0.1) 100%);
  margin-top: 8px;
}

.experience-card,
.education-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.experience-card:hover,
.education-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.experience-card-header,
.education-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}

.badge-role {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  padding: 3px 9px;
  border-radius: var(--radius-full);
  margin-bottom: 0.5rem;
}

.experience-role,
.education-degree {
  font-size: clamp(1.25rem, 2.2vw, 1.45rem);
  font-weight: 700;
  color: var(--text-heading);
}

.experience-organization {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--accent-blue);
  margin-top: 0.25rem;
}

.org-name {
  font-weight: 600;
}

.org-separator {
  color: var(--text-muted);
}

.org-location {
  color: var(--text-secondary);
}

.experience-body p,
.education-summary {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.experience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 0.5rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 4px;
}

/* Education Specific Details */
.education-institution {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-top: 0.25rem;
}

.education-badge .batch-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background-color: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  display: inline-block;
}

.education-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background-color: var(--bg-card-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.meta-row {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9375rem;
}

.meta-label {
  color: var(--text-muted);
  min-width: 155px;
  font-weight: 500;
}

.meta-value {
  color: var(--text-heading);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   8. CURRENTLY LEARNING SECTION
   -------------------------------------------------------------------------- */
.pipeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 3rem);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.pipeline-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pipeline-badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pipeline-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-heading);
}

/* Pipeline Flow & Node Graphics in Pure CSS */
.pipeline-flow {
  display: grid;
  grid-template-columns: repeat(7, auto);
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  position: relative;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  z-index: 2;
}

.step-circle {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--bg-card-subtle);
  border: 2px solid var(--border-subtle);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.pipeline-step:hover .step-circle {
  transform: scale(1.1);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px var(--accent-glow);
}

.step-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
}

.step-sub {
  font-size: 0.775rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.pipeline-connector {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: 40px;
  height: 2px;
}

.connector-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.2), rgba(0, 229, 255, 0.6), rgba(56, 189, 248, 0.2));
}

.connector-pulse {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-horizontal 3s infinite linear;
}

.pipeline-footer {
  border-top: 1px solid var(--border-card);
  padding-top: 1.25rem;
}

.pipeline-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.status-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
  flex-shrink: 0;
  animation: pulse-dot 2s infinite ease-in-out;
}

/* --------------------------------------------------------------------------
   9. CONTACT SECTION
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  padding: 1.35rem 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  color: var(--text-heading);
}

.contact-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.contact-card:hover .contact-card-icon {
  transform: scale(1.08);
  background-color: rgba(0, 229, 255, 0.15);
}

.contact-card-content {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.contact-label {
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.contact-arrow {
  margin-left: auto;
  font-size: 1.25rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.contact-card:hover .contact-arrow {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   10. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #05070d;
  border-top: 1px solid var(--border-card);
  padding: 3rem 0 2rem;
  margin-top: 3rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-tagline strong {
  color: var(--text-heading);
}

.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-cyan);
}

.back-to-top-link {
  color: var(--accent-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.footer-bottom {
  max-width: var(--container-max-width);
  margin: 1.5rem auto 0;
  padding: 0 clamp(1rem, 4vw, 2rem);
  text-align: center;
}

.copyright-text {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. ANIMATIONS & REVEAL STATES
   -------------------------------------------------------------------------- */
@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.85);
  }
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes pulse-horizontal {
  0% { left: 0%; opacity: 0.2; }
  50% { opacity: 1; }
  100% { left: 100%; opacity: 0.2; }
}

/* Reveal-on-scroll styles */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fallback if JS is disabled or fails: elements stay visible */
.no-js .reveal-on-scroll {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   12. RESPONSIVE LAYOUTS (TABLET & MOBILE)
   -------------------------------------------------------------------------- */

/* Tablet & Smaller Desktops */
@media (max-width: 968px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pipeline-flow {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding: 0.5rem 0;
  }

  .pipeline-connector {
    width: 2px;
    height: 30px;
    margin: 0 auto;
  }

  .connector-line {
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.2), rgba(0, 229, 255, 0.6), rgba(56, 189, 248, 0.2));
  }

  .connector-pulse {
    animation: none;
    display: none;
  }
}

/* Mobile Devices */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: rgba(7, 10, 18, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-card);
    flex-direction: column;
    padding: 2rem 1.5rem;
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    overflow-y: auto;
  }

  .primary-nav.nav-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .nav-link {
    display: block;
    font-size: 1.15rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
  }

  .nav-link.active::after {
    display: none;
  }

  .timeline-item {
    grid-template-columns: 32px 1fr;
    gap: 0.875rem;
  }

  .marker-dot {
    width: 14px;
    height: 14px;
    margin-top: 1.25rem;
  }

  .meta-row {
    flex-direction: column;
    gap: 0.15rem;
  }

  .meta-label {
    min-width: auto;
    font-size: 0.8rem;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    width: 100%;
    justify-content: flex-start;
    gap: 1rem;
  }
}

/* Medium & Small Mobile Screens */
@media (max-width: 640px) {
  .profile-card {
    flex-direction: column;
    text-align: center;
    gap: 1.25rem;
  }

  .avatar-wrapper {
    margin: 0 auto;
  }

  .profile-tags {
    justify-content: center;
  }
}

/* Small Mobile Screens */
@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

/* --------------------------------------------------------------------------
   13. REDUCED-MOTION SUPPORT
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }

  .status-indicator,
  .status-pulse-dot,
  .term-cursor,
  .connector-pulse {
    animation: none !important;
  }
}