/* ==========================================================================
   NIRAV LAD - EXECUTIVE PORTFOLIO & RESUME STYLESHEET
   Domain: niravlad.com | Version: 2.0
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Core Color Palette - Slate & Cyan/Emerald Neon Accents */
  --bg-primary: #0a0f1d;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.4);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-emerald: #10b981;
  --accent-violet: #8b5cf6;
  --accent-amber: #f59e0b;

  --gradient-primary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --gradient-accent: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.15), transparent 70%);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.8) 100%);

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(6, 182, 212, 0.25);
  --shadow-emerald-glow: 0 0 25px rgba(16, 185, 129, 0.25);

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  --nav-height: 80px;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(6, 182, 212, 0.5);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08), transparent 70%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(241, 245, 249, 0.9) 100%);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 20px -3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 30px -10px rgba(0, 0, 0, 0.12);
}

/* --------------------------------------------------------------------------
   Global Resets & Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  background-image: 
    radial-gradient(at 10% 15%, rgba(6, 182, 212, 0.07) 0px, transparent 50%),
    radial-gradient(at 90% 85%, rgba(139, 92, 246, 0.06) 0px, transparent 50%),
    radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.04) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Selection */
::selection {
  background-color: rgba(6, 182, 212, 0.3);
  color: #fff;
}

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

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 400;
}

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

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

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  background: rgba(10, 15, 29, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(10, 15, 29, 0.92);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
  height: 70px;
}

[data-theme="light"] .header {
  background: rgba(248, 250, 252, 0.8);
}
[data-theme="light"] .header.scrolled {
  background: rgba(248, 250, 252, 0.95);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.logo-badge {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text span:first-child {
  line-height: 1.1;
  color: var(--text-main);
}

.logo-text span:last-child {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-main);
  padding: 8px;
}

/* --------------------------------------------------------------------------
   Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.45);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

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

.btn-emerald {
  background: var(--gradient-accent);
  color: #042f2e;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-emerald:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.45);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 60px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-glow-bg {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 650px;
  height: 650px;
  background: var(--gradient-glow);
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-emerald);
  margin-bottom: 24px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  position: relative;
}

.status-dot::after {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  opacity: 0.6;
  animation: pulse 2s infinite ease-out;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-highlight-tag {
  color: var(--text-main);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 4px;
  border-bottom: 1px solid var(--accent-cyan);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-quick-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.quick-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.quick-meta-item i {
  color: var(--accent-cyan);
}

/* Hero Right Side - Interactive Tech Terminal Card */
.hero-visual-card {
  position: relative;
}

.hero-card-glow {
  position: absolute;
  inset: -15px;
  background: var(--gradient-primary);
  opacity: 0.15;
  filter: blur(25px);
  border-radius: var(--radius-lg);
  z-index: 0;
}

.tech-terminal {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
}

.terminal-header {
  background: rgba(0, 0, 0, 0.25);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

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

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.8;
}

.terminal-line {
  margin-bottom: 12px;
}

.terminal-line:last-child {
  margin-bottom: 0;
}

.cmd-prompt {
  color: var(--accent-emerald);
}

.cmd-command {
  color: var(--text-main);
  font-weight: 600;
}

.terminal-output {
  color: var(--text-muted);
  padding-left: 14px;
  border-left: 2px solid var(--border-subtle);
  margin-top: 6px;
}

.accent-val {
  color: var(--accent-cyan);
  font-weight: 600;
}

.accent-keyword {
  color: var(--accent-violet);
  font-weight: 600;
}

.accent-str {
  color: #38bdf8;
}

.accent-num {
  color: var(--accent-amber);
}

/* Floating Tech Pills */
.floating-badge {
  position: absolute;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 2;
  animation: float 4s ease-in-out infinite;
}

.floating-badge i {
  font-size: 1.2rem;
}

.floating-badge-1 {
  top: -18px;
  right: 20px;
  border-color: rgba(6, 182, 212, 0.3);
  color: var(--accent-cyan);
  animation-delay: 0s;
}

.floating-badge-2 {
  bottom: -20px;
  left: 20px;
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
  animation-delay: 2s;
}

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

/* --------------------------------------------------------------------------
   Metrics Counter Strip
   -------------------------------------------------------------------------- */
.metrics-strip {
  padding: 40px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.metric-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.metric-icon-box.emerald {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
}

.metric-icon-box.violet {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent-violet);
}

.metric-icon-box.amber {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
}

.metric-details {
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   About & Core Competencies Section
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: flex-start;
}

.about-narrative {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lead-paragraph {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--text-main);
}

.about-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.about-highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 16px 0;
}

.about-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.about-highlight-item i {
  color: var(--accent-cyan);
  margin-top: 4px;
  font-size: 1rem;
}

.competencies-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.competencies-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.competencies-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.competencies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.competency-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

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

.competency-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Skills Matrix Section
   -------------------------------------------------------------------------- */
.skills-tabs-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.skill-tab-btn {
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-tab-btn:hover {
  color: var(--text-main);
  border-color: var(--border-focus);
}

.skill-tab-btn.active {
  background: var(--accent-cyan);
  color: #042f2e;
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.skills-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

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

.category-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.category-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

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

.category-subtitle {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.skill-tags-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.skill-tag {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

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

.skill-tag.highlight {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

.skill-category-summary {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--border-subtle);
}

/* --------------------------------------------------------------------------
   Work Experience Section
   -------------------------------------------------------------------------- */
.experience-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.experience-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-violet), var(--accent-emerald));
  border-radius: var(--radius-full);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 50px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-node {
  position: absolute;
  left: 11px;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 4px solid var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  z-index: 2;
  transition: transform var(--transition-fast);
}

.timeline-item:hover .timeline-node {
  transform: scale(1.3);
  background: var(--accent-cyan);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.timeline-card:hover {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.timeline-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.timeline-role-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-role-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.timeline-company {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-badge-location {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.timeline-period-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.timeline-period-badge.current {
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
}

.timeline-responsibilities {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.timeline-responsibilities li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.timeline-responsibilities li i {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  margin-top: 6px;
  flex-shrink: 0;
}

.timeline-responsibilities li strong {
  color: var(--text-main);
}

.timeline-tech-stack {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.stack-label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Project Portfolio Showcase Section
   -------------------------------------------------------------------------- */
.portfolio-filter-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-main);
  border-color: var(--accent-cyan);
}

.filter-btn.active {
  background: var(--accent-cyan);
  color: #042f2e;
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.project-header-visual {
  height: 180px;
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.project-pattern-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image: radial-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 16px 16px;
}

.project-type-icon {
  font-size: 3.5rem;
  color: var(--accent-cyan);
  opacity: 0.9;
  transition: transform var(--transition-bounce);
  position: relative;
  z-index: 1;
}

.project-card:hover .project-type-icon {
  transform: scale(1.15) rotate(5deg);
}

.project-badge-corner {
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
  backdrop-filter: blur(8px);
  z-index: 2;
}

.project-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-client-meta {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  margin-bottom: 8px;
  font-weight: 600;
  text-transform: uppercase;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.35;
}

.project-excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.project-metrics-highlight {
  background: var(--bg-tertiary);
  border-left: 3px solid var(--accent-cyan);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--text-main);
}

.project-metrics-highlight span {
  font-weight: 700;
  color: var(--accent-cyan);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
  margin-top: auto;
}

.project-tag-item {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-muted);
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.btn-view-project {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: gap var(--transition-fast);
}

.btn-view-project:hover {
  gap: 12px;
  color: #fff;
}

.btn-live-project {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-live-project:hover {
  background: var(--accent-emerald);
  color: #042f2e;
  border-color: var(--accent-emerald);
  transform: translateY(-1px);
}

/* Privacy & Data Masking for Sensitive Client Information */
.blur-sensitive {
  filter: blur(5.5px);
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 3px;
  display: inline-block;
  letter-spacing: 0.5px;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-top: 6px;
}

.erp-mini-preview {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 16px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.erp-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-dim);
}

.erp-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}

.erp-stat-box {
  background: var(--bg-tertiary);
  padding: 6px 8px;
  border-radius: 4px;
  text-align: center;
  border: 1px solid var(--border-subtle);
}

.erp-stat-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.erp-stat-lbl {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Certifications & Education Section
   -------------------------------------------------------------------------- */
.edu-cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.edu-cert-column {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.column-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.column-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.column-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.edu-item {
  display: flex;
  gap: 18px;
}

.edu-icon-badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.edu-degree {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.edu-institution {
  font-size: 0.95rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 6px;
}

.edu-meta {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  margin-bottom: 12px;
}

.edu-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cert-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: all var(--transition-fast);
}

.cert-card:hover {
  border-color: var(--accent-cyan);
  transform: translateX(4px);
  background: var(--bg-card-hover);
}

.cert-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cert-icon {
  font-size: 1.8rem;
  color: #0056D2; /* Coursera Blue */
}

.cert-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.cert-issuer {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.cert-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: flex-start;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.contact-heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 28px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-channel-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact-channel-item:hover {
  border-color: var(--border-focus);
}

.channel-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.channel-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.channel-title {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
}

.channel-val {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.btn-copy-channel {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.btn-copy-channel:hover {
  background: var(--accent-cyan);
  color: #042f2e;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.form-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 13px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   Interactive Modal System (Project Case Study & Live Resume)
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 860px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: scale(0.92);
  transition: transform var(--transition-bounce);
}

.modal-overlay.active .modal-dialog {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: #ef4444;
  color: #fff;
  border-color: #ef4444;
}

.modal-header {
  padding: 32px 32px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.modal-body {
  padding: 32px;
  color: var(--text-muted);
  line-height: 1.7;
}

.modal-section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 24px 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-section-title:first-child {
  margin-top: 0;
}

.modal-section-title i {
  color: var(--accent-cyan);
}

.modal-highlight-box {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-cyan);
  padding: 16px 20px;
  margin: 16px 0;
  color: var(--text-main);
  font-size: 0.95rem;
}

.modal-footer {
  padding: 20px 32px;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  padding: 14px 22px;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 16px;
}

.back-to-top-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.back-to-top-btn:hover {
  background: var(--accent-cyan);
  color: #042f2e;
  border-color: var(--accent-cyan);
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .skills-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    display: none;
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .skills-container {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .edu-cert-grid {
    grid-template-columns: 1fr;
  }
  .competencies-grid {
    grid-template-columns: 1fr;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}