/* ==========================================================================
   Kishore Kumar A - Professional Portfolio CSS
   Embedded Systems & Industrial Automation Engineer
   ========================================================================== */

:root {
  --bg-primary: #080C13;
  --bg-secondary: #0D131E;
  --bg-tertiary: #141D2D;
  --card-bg: rgba(15, 23, 36, 0.75);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(47, 224, 189, 0.45);
  
  --teal: #2FE0BD;
  --teal-glow: rgba(47, 224, 189, 0.35);
  --teal-light: #9BFFEA;
  --blue: #3878FF;
  --blue-glow: rgba(56, 120, 255, 0.35);
  --blue-light: #9BC4FF;
  --amber: #FFB347;
  --amber-glow: rgba(255, 179, 71, 0.35);
  
  --text-primary: #F3F5F8;
  --text-secondary: #9BA4B5;
  --text-muted: #5C677D;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--teal-glow);
  
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--teal);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Background Grids & Orbs */
.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  will-change: transform;
}
.orb-1 {
  width: 450px;
  height: 450px;
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, var(--teal-glow) 0%, transparent 70%);
  animation: floatOrb 14s ease-in-out infinite alternate;
}
.orb-2 {
  width: 500px;
  height: 500px;
  top: 30%;
  right: -150px;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  animation: floatOrb 18s ease-in-out infinite alternate-reverse;
}
.orb-3 {
  width: 380px;
  height: 380px;
  bottom: 10%;
  left: 20%;
  background: radial-gradient(circle, rgba(47, 224, 189, 0.15) 0%, transparent 70%);
  animation: floatOrb 12s ease-in-out infinite alternate;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, 50px) scale(1.15); }
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: var(--transition-normal);
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(8, 12, 19, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, rgba(47, 224, 189, 0.2), rgba(56, 120, 255, 0.2));
  border: 1px solid var(--teal);
  border-radius: var(--radius-md);
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 0 12px var(--teal-glow);
}

.brand-name {
  color: var(--text-primary);
}
.brand-name span {
  color: var(--teal);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal);
  transition: var(--transition-fast);
  border-radius: var(--radius-full);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 13.5px;
  transition: var(--transition-normal);
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
  stroke-width: 2.2;
}

.btn-primary {
  background: var(--teal);
  color: #05100E;
  border: 1px solid var(--teal);
  box-shadow: 0 0 15px rgba(47, 224, 189, 0.3);
}

.btn-primary:hover {
  background: var(--teal-light);
  box-shadow: 0 0 25px rgba(47, 224, 189, 0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn-outline:hover {
  background: rgba(47, 224, 189, 0.1);
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 12.5px;
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
}
.mobile-toggle svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 140px 0 80px;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

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

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(47, 224, 189, 0.1);
  border: 1px solid rgba(47, 224, 189, 0.3);
  border-radius: var(--radius-full);
  color: var(--teal);
  font-size: 12.5px;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-bottom: 22px;
  box-shadow: 0 0 15px rgba(47, 224, 189, 0.15);
}

.status-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 8px var(--teal);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 12px var(--teal); }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.hero-title {
  font-size: clamp(38px, 5.5vw, 58px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, #FFFFFF 30%, var(--teal) 80%, var(--blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-description {
  font-size: 15.5px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 30px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.social-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.social-chip svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
}

.social-chip:hover {
  background: var(--teal);
  color: #06110E;
  border-color: var(--teal);
  transform: translateY(-3px);
  box-shadow: 0 4px 14px var(--teal-glow);
}
.social-chip:hover svg {
  stroke: #06110E;
}

/* Profile Card Widget */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.profile-card-wrapper {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.profile-card {
  position: relative;
  background: linear-gradient(160deg, rgba(13, 22, 35, 0.92) 0%, rgba(8, 14, 23, 0.98) 100%);
  border: 1.5px solid rgba(47, 224, 189, 0.35);
  border-radius: var(--radius-xl);
  padding: 24px 24px 22px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 35px rgba(47, 224, 189, 0.15);
  backdrop-filter: blur(16px);
  text-align: center;
  overflow: hidden;
  transition: var(--transition-normal);
}

.profile-card:hover {
  border-color: var(--teal);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.7), 0 0 45px rgba(47, 224, 189, 0.25);
}

/* Corner Tech Brackets */
.card-corner-accent {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--teal);
  border-style: solid;
  pointer-events: none;
  opacity: 0.75;
  transition: var(--transition-fast);
}
.profile-card:hover .card-corner-accent {
  opacity: 1;
  box-shadow: 0 0 8px var(--teal);
}
.corner-tl {
  top: 10px;
  left: 10px;
  border-width: 2px 0 0 2px;
  border-top-left-radius: 4px;
}
.corner-tr {
  top: 10px;
  right: 10px;
  border-width: 2px 2px 0 0;
  border-top-right-radius: 4px;
}
.corner-bl {
  bottom: 10px;
  left: 10px;
  border-width: 0 0 2px 2px;
  border-bottom-left-radius: 4px;
}
.corner-br {
  bottom: 10px;
  right: 10px;
  border-width: 0 2px 2px 0;
  border-bottom-right-radius: 4px;
}

/* Top Integrated HUD Status Header */
.profile-hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.hud-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-primary);
  backdrop-filter: blur(8px);
  transition: var(--transition-fast);
}

.hud-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--card-border-hover);
}

.hud-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.hud-dot.teal {
  background: var(--teal);
  box-shadow: 0 0 8px var(--teal);
}
.hud-dot.amber {
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
}

.circuit-canvas-bg {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  pointer-events: none;
}

.profile-img-wrap {
  position: relative;
  width: 155px;
  height: 155px;
  margin: 0 auto 16px;
}

.profile-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg-tertiary);
  box-shadow: 0 0 0 2px var(--teal), 0 10px 30px rgba(0, 0, 0, 0.5);
}

.profile-glow-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1.5px dashed var(--teal);
  animation: rotateRing 20s linear infinite;
  opacity: 0.6;
}

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

.profile-name {
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 4px;
}
.profile-tag {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--teal);
  margin-bottom: 16px;
}

.profile-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: center;
  margin-bottom: 20px;
}

.p-badge {
  font-size: 11.5px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.p-badge:hover {
  border-color: var(--teal);
  color: var(--text-primary);
  background: rgba(47, 224, 189, 0.1);
  transform: translateY(-1px);
}

.p-badge.highlight {
  background: rgba(47, 224, 189, 0.12);
  border-color: rgba(47, 224, 189, 0.4);
  color: var(--teal);
}

.profile-card-action {
  position: relative;
  z-index: 2;
  margin-top: 4px;
}

/* Stats Highlight Bar */
.stats-banner {
  margin-top: 40px;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--card-border);
}

.stat-number {
  font-size: 26px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--teal);
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12.5px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* ==========================================================================
   Section Headers & Common Utilities
   ========================================================================== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 55px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 12px;
}
.section-eyebrow::before, .section-eyebrow::after {
  content: '//';
  opacity: 0.6;
}

.section-title {
  font-size: clamp(28px, 3.8vw, 38px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 15.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-card-hero {
  background: linear-gradient(145deg, rgba(16, 25, 40, 0.8) 0%, rgba(10, 16, 26, 0.9) 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 40px;
}

.about-card-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--teal), var(--blue));
}

.about-quote-icon {
  font-size: 40px;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.8;
}

.about-summary-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-primary);
  font-weight: 500;
}

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

.pillar-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-5px);
  border-color: var(--card-border-hover);
  box-shadow: var(--shadow-glow);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(47, 224, 189, 0.1);
  border: 1px solid rgba(47, 224, 189, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  margin-bottom: 20px;
}
.pillar-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
}

.pillar-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.pillar-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mini-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   Experience Section
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 2px;
  background: linear-gradient(to bottom, var(--teal), rgba(47, 224, 189, 0.1));
}

.timeline-item {
  position: relative;
  padding-left: 70px;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: 20px;
  top: 24px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--teal);
  box-shadow: 0 0 12px var(--teal);
  z-index: 2;
}

.experience-card {
  background: var(--card-bg);
  border: 1.5px solid rgba(47, 224, 189, 0.3);
  border-radius: var(--radius-xl);
  padding: 34px 30px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.experience-card:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-glow);
}

.exp-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
}

.exp-role {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
}

.exp-company {
  font-size: 15px;
  font-weight: 600;
  color: var(--teal);
  margin-top: 2px;
}

.exp-duration {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--amber);
  background: rgba(255, 179, 71, 0.1);
  border: 1px solid rgba(255, 179, 71, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.exp-body {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 22px;
}

.exp-skills-group {
  margin-bottom: 24px;
}
.exp-skills-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.exp-actions {
  display: flex;
  gap: 14px;
  align-items: center;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.project-filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 45px;
}

.filter-tab {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  transition: var(--transition-fast);
}

.filter-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.filter-tab.active {
  background: var(--teal);
  color: #06110E;
  border-color: var(--teal);
  box-shadow: 0 0 15px var(--teal-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--card-border-hover);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(47, 224, 189, 0.2);
}

.project-thumbnail {
  position: relative;
  height: 200px;
  background: var(--bg-tertiary);
  overflow: hidden;
  cursor: pointer;
}

.project-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-thumbnail img {
  transform: scale(1.05);
}

.project-badge-top {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.badge-featured {
  background: rgba(47, 224, 189, 0.85);
  color: #05100E;
}
.badge-ongoing {
  background: rgba(255, 179, 71, 0.9);
  color: #1A1000;
}
.badge-mini {
  background: rgba(56, 120, 255, 0.85);
  color: #FFFFFF;
}

.project-gallery-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: rgba(8, 12, 19, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  font-size: 11.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transform: translateY(6px);
  transition: var(--transition-fast);
}

.project-thumbnail:hover .project-gallery-btn {
  opacity: 1;
  transform: translateY(0);
}

.project-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-date {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.project-title {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.project-card:hover .project-title {
  color: var(--teal);
}

.project-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.p-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.75);
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.project-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.project-cta-link svg {
  width: 14px;
  height: 14px;
  stroke: var(--teal);
  stroke-width: 2.2;
  transition: transform var(--transition-fast);
}

.project-card:hover .project-cta-link svg {
  transform: translateX(4px);
}

.github-link-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.github-link-icon svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.github-link-icon:hover {
  background: var(--text-primary);
  color: #060B12;
}

/* ==========================================================================
   Technical Skills Section
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.skill-category-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition-normal);
}

.skill-category-card:hover {
  border-color: var(--card-border-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.skill-cat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.skill-cat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(47, 224, 189, 0.1);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
}
.skill-cat-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.skill-cat-title {
  font-size: 17px;
  font-weight: 700;
}

.skill-chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-pill-tag {
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.skill-pill-tag:hover {
  background: rgba(47, 224, 189, 0.15);
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-2px);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* ==========================================================================
   Education & Certifications Section (Separate Full-Width Sections)
   ========================================================================== */
.academic-card-full {
  background: linear-gradient(145deg, rgba(16, 25, 40, 0.85) 0%, rgba(10, 16, 26, 0.95) 100%);
  border: 1.5px solid rgba(47, 224, 189, 0.35);
  border-radius: var(--radius-xl);
  padding: 40px 45px;
  position: relative;
  box-shadow: var(--shadow-md), 0 0 25px rgba(47, 224, 189, 0.1);
}

.academic-main-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.academic-institution {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.academic-sub {
  font-size: 15px;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: 10px;
}

.academic-degree {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.cgpa-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(47, 224, 189, 0.12);
  border: 1px solid rgba(47, 224, 189, 0.4);
  border-radius: var(--radius-full);
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 0 15px rgba(47, 224, 189, 0.2);
}

.coursework-divider {
  height: 1px;
  background: linear-gradient(to right, rgba(47, 224, 189, 0.3), rgba(255, 255, 255, 0.05), transparent);
  margin: 30px 0;
}

.coursework-title {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.coursework-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.coursework-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.coursework-item:hover {
  background: rgba(47, 224, 189, 0.08);
  border-color: var(--teal);
  color: var(--text-primary);
  transform: translateX(3px);
}

.cw-bullet {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 6px var(--teal);
  flex-shrink: 0;
}

/* Certifications 3-Column Grid */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cert-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.cert-card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--amber);
  background: rgba(255, 179, 71, 0.12);
  border: 1px solid rgba(255, 179, 71, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  width: fit-content;
}

.cert-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.cert-issuer {
  font-size: 13px;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: 12px;
}

.cert-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.cert-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
}
.cert-link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  transition: transform var(--transition-fast);
}
.cert-card:hover .cert-link svg {
  transform: translateX(3px);
}
.cert-link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

/* ==========================================================================
   Organizations Section
   ========================================================================== */
.orgs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.org-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition-normal);
}

.org-card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
}

.org-acronym {
  font-size: 18px;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 4px;
}

.org-full-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.org-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.org-role-tag {
  color: var(--text-secondary);
}
.org-dates-tag {
  font-family: var(--font-mono);
  color: var(--amber);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
  background: linear-gradient(160deg, rgba(16, 25, 42, 0.9) 0%, rgba(9, 14, 23, 0.95) 100%);
  border: 1.5px solid rgba(47, 224, 189, 0.35);
  border-radius: var(--radius-xl);
  padding: 50px 40px;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(47, 224, 189, 0.1);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.contact-info-side {
  display: flex;
  flex-direction: column;
}

.contact-lead {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 30px;
}

.contact-channel-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.contact-channel-item:hover {
  background: rgba(47, 224, 189, 0.08);
  border-color: var(--teal);
  transform: translateX(4px);
}

.channel-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(47, 224, 189, 0.15);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.channel-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

.channel-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.channel-label {
  font-size: 11.5px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
}

.channel-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.copy-btn {
  padding: 6px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.copy-btn:hover {
  color: var(--teal);
  background: rgba(255, 255, 255, 0.08);
}
.copy-btn svg {
  width: 16px;
  height: 16px;
}

/* Quick Action Box */
.contact-action-card {
  background: rgba(13, 19, 30, 0.7);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 34px;
  text-align: center;
}

.action-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(47, 224, 189, 0.2), rgba(56, 120, 255, 0.2));
  border: 1px solid var(--teal);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 0 20px var(--teal-glow);
}
.action-card-icon svg {
  width: 28px;
  height: 28px;
}

.action-card-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 8px;
}

.action-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.action-btn-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--card-border);
  background: var(--bg-primary);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  font-weight: 800;
  font-size: 16px;
}

.footer-note {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Modals & Lightbox
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(4, 7, 12, 0.85);
  backdrop-filter: blur(10px);
  padding: 30px 16px;
  overflow-y: auto;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1.5px solid rgba(47, 224, 189, 0.45);
  border-radius: var(--radius-xl);
  padding: 36px 32px 30px;
  position: relative;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.7), 0 0 35px rgba(47, 224, 189, 0.15);
  animation: modalFadeIn 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: var(--teal);
  color: #06110E;
  border-color: var(--teal);
}
.modal-close svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2.4;
}

.modal-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
}

.modal-title {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 22px;
  padding-right: 36px;
}

.modal-section-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
  margin-top: 22px;
}
.modal-section-label:first-of-type {
  margin-top: 0;
}

.modal-text {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Architecture Flow in Modal */
.modal-arch-flow {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0;
}

.arch-step-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.arch-step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--teal);
  color: #06110E;
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.modal-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.modal-img-thumb {
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--card-border);
  cursor: pointer;
  transition: var(--transition-fast);
}
.modal-img-thumb:hover {
  border-color: var(--teal);
  transform: scale(1.04);
}
.modal-img-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Lightbox Gallery */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(2, 4, 8, 0.94);
  backdrop-filter: blur(12px);
  padding: 40px 20px;
}

.lightbox-overlay.open {
  display: flex;
}

.lightbox-main {
  position: relative;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  animation: modalFadeIn 0.2s ease;
}

.lightbox-caption {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 14px;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 310;
  transition: var(--transition-fast);
}
.lightbox-close:hover {
  background: var(--teal);
  color: #000;
}

.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #FFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 310;
  transition: var(--transition-fast);
}
.lightbox-arrow:hover {
  background: var(--teal);
  color: #06110E;
  border-color: var(--teal);
}
.lightbox-arrow svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2.4;
}
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

.lightbox-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 310;
}

.lightbox-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: var(--transition-fast);
}
.lightbox-dot.active {
  background: var(--teal);
  transform: scale(1.3);
  box-shadow: 0 0 8px var(--teal);
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--teal);
  color: #06110E;
  font-weight: 700;
  font-size: 13.5px;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-normal);
}
.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-content {
    align-items: center;
  }
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  .stats-banner {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .stat-item:nth-child(2)::after {
    display: none;
  }
  .pillars-grid, .certs-grid, .orgs-grid, .contact-wrapper {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 19, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    flex-direction: column;
    padding: 28px 24px;
    gap: 20px;
    transform: translateY(-150%);
    transition: var(--transition-normal);
  }
  .nav-menu.open {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: flex;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .floating-badge {
    display: none;
  }
  .stats-banner {
    grid-template-columns: 1fr;
  }
  .stat-item::after {
    display: none !important;
  }
  .lightbox-arrow {
    width: 40px;
    height: 40px;
  }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
}