/* ==========================================================================
   MUHAMMAD MOHSIN ASHRAF — CYBERSECURITY & SOC TEAM LEAD PORTFOLIO
   Theme: Cyber Defense Obsidian & Neon Telemetry
   ========================================================================== */

:root {
  --bg-deep: #07090e;
  --bg-surface: #0e131f;
  --bg-surface-elevated: #141c2e;
  --bg-card: rgba(18, 26, 44, 0.7);
  --bg-card-hover: rgba(24, 35, 60, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(16, 185, 129, 0.3);
  --border-cyan: rgba(6, 182, 212, 0.35);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

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

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

body {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Subtle cyber background grid & gradients */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(16, 185, 129, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(6, 182, 212, 0.08) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: -1;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.9rem 0;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-shield {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-emerald), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 1rem;
  box-shadow: 0 0 15px var(--accent-emerald-glow);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-hire {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-emerald), #059669);
  color: #061e14;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 15px var(--accent-emerald-glow);
  transition: var(--transition);
}

.btn-hire:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
  color: #000;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 5rem 0 3.5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-emerald);
  margin-bottom: 1.5rem;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 3.25rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 80%, var(--accent-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 18px var(--accent-cyan-glow);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.freelance-badges {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.freelance-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.freelance-link:hover {
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
}

/* Hero Portrait Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.portrait-frame {
  position: relative;
  width: 320px;
  height: 420px;
  border-radius: 24px;
  padding: 8px;
  background: linear-gradient(145deg, rgba(6, 182, 212, 0.4), rgba(16, 185, 129, 0.1), rgba(99, 102, 241, 0.3));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 40px rgba(6, 182, 212, 0.15);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  filter: contrast(1.05) brightness(0.98);
}

/* Floating cyber badges over portrait */
.float-stat-badge {
  position: absolute;
  background: rgba(14, 19, 31, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-accent);
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.float-stat-badge.badge-top {
  top: -15px;
  right: -25px;
}

.float-stat-badge.badge-bottom {
  bottom: -20px;
  left: -25px;
  border-color: var(--border-cyan);
}

.stat-icon {
  font-size: 1.5rem;
}

.stat-num {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   METRICS TRUST BAR
   ========================================================================== */
.metrics-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(14, 19, 31, 0.4);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.metric-item h3 {
  font-size: 2.4rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

.metric-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 0.6rem;
  display: inline-block;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
}

/* ==========================================================================
   SPECIALIZATIONS / SERVICES
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-cyan);
  background: var(--bg-card-hover);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.service-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* ==========================================================================
   ENTERPRISE DEPLOYMENTS & PROJECTS
   ========================================================================== */
.project-filters {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.project-location {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.project-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-indigo);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-impact {
  background: rgba(0, 0, 0, 0.25);
  border-left: 2px solid var(--accent-cyan);
  padding: 0.65rem 0.9rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.project-impact strong {
  color: var(--text-main);
}

/* ==========================================================================
   EXPERIENCE TIMELINE
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-emerald), var(--accent-cyan), var(--border-subtle));
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3rem;
}

.timeline-dot {
  position: absolute;
  left: 17px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 3px solid var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-cyan);
  background: var(--bg-card-hover);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-role {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.timeline-company {
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.95rem;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
}

.timeline-bullets {
  list-style: none;
  margin-top: 1rem;
}

.timeline-bullets li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  line-height: 1.55;
}

.timeline-bullets li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-emerald);
}

/* ==========================================================================
   CERTIFICATIONS & EDUCATION
   ========================================================================== */
.credentials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
}

.cert-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.cert-badge-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.cert-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.cert-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Education Cards */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.edu-degree {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
}

.edu-school {
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}

.edu-cgpa {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.edu-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CONTACT & FREELANCE SECTION
   ========================================================================== */
.contact-section {
  background: linear-gradient(180deg, transparent, rgba(14, 19, 31, 0.6));
  border-top: 1px solid var(--border-subtle);
}

.contact-card-main {
  background: var(--bg-surface);
  border: 1px solid var(--border-cyan);
  border-radius: 24px;
  padding: 3.5rem 3rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(6, 182, 212, 0.1);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-left h3 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.contact-left p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.direct-channels {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.channel-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.channel-link:hover {
  border-color: var(--accent-cyan);
  transform: translateX(4px);
}

.channel-icon {
  font-size: 1.25rem;
  color: var(--accent-cyan);
}

.channel-text .channel-type {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 600;
}

.channel-text .channel-val {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
}

/* Freelance Platform CTA Cards */
.platform-cta-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  justify-content: center;
}

.platform-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.platform-card:hover {
  border-color: var(--accent-emerald);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.platform-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
}

.platform-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.platform-btn {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--border-accent);
  color: var(--accent-emerald);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  white-space: nowrap;
}

.platform-card:hover .platform-btn {
  background: var(--accent-emerald);
  color: #000;
}

/* ==========================================================================
   AI AGENT CHAT WIDGET
   ========================================================================== */
.chat-launcher {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1000;
}

.launcher-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border: 1px solid var(--accent-cyan);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 10px 35px rgba(6, 182, 212, 0.3), 0 0 15px rgba(16, 185, 129, 0.2);
  transition: var(--transition);
}

.launcher-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 45px rgba(6, 182, 212, 0.45);
}

.launcher-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-emerald));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: #000;
}

/* Chat Modal Window */
.chat-window {
  position: fixed;
  bottom: 90px;
  right: 28px;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 560px;
  max-height: calc(100vh - 120px);
  background: rgba(14, 20, 32, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-cyan);
  border-radius: 20px;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.65), 0 0 35px rgba(6, 182, 212, 0.2);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.95);
}

.chat-window.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.chat-header {
  background: rgba(10, 15, 26, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chat-header-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-emerald));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 1.1rem;
}

.chat-header-text h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.chat-header-text span {
  font-size: 0.72rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.chat-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chat-ctrl-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.chat-ctrl-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* Chat Messages Stream */
.chat-messages {
  flex-grow: 1;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-msg {
  display: flex;
  gap: 0.65rem;
  max-width: 88%;
}

.chat-msg.user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.msg-bubble {
  padding: 0.75rem 1rem;
  border-radius: 16px;
  font-size: 0.88rem;
  line-height: 1.5;
}

.chat-msg.agent .msg-bubble {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  border-top-left-radius: 4px;
}

.chat-msg.user .msg-bubble {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #fff;
  border-top-right-radius: 4px;
}

.chat-msg.agent .msg-bubble a {
  color: var(--accent-cyan);
  text-decoration: underline;
}

.chat-msg.agent .msg-bubble code {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* Suggested Question Chips */
.chat-suggestions {
  padding: 0.5rem 1.25rem 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(10, 15, 26, 0.5);
}

.sugg-chip {
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.sugg-chip:hover {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
}

/* Chat Input Bar */
.chat-input-bar {
  padding: 0.85rem 1.25rem;
  background: rgba(10, 15, 26, 0.95);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 0.6rem;
}

.chat-input-bar input {
  flex-grow: 1;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 0.6rem 1rem;
  color: #fff;
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
}

.chat-input-bar input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-cyan);
  color: #000;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}

.chat-send-btn:hover {
  transform: scale(1.08);
  background: var(--accent-emerald);
}

/* Typing Indicator Animation */
.typing-dots {
  display: inline-flex;
  gap: 4px;
  padding: 4px 6px;
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
  0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-deep);
  font-size: 0.88rem;
  color: var(--text-dim);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

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

/* ==========================================================================
   RESPONSIVE DESIGN (Tablets & Mobile)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .hero-desc {
    margin: 0 auto 2rem;
  }

  .hero-actions, .freelance-badges {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .portrait-frame {
    width: 260px;
    height: 350px;
  }

  .float-stat-badge.badge-top {
    right: -10px;
  }

  .float-stat-badge.badge-bottom {
    left: -10px;
  }

  .services-grid,
  .credentials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card-main {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: 2.5rem 1.75rem;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .services-grid,
  .projects-grid,
  .credentials-grid,
  .edu-grid {
    grid-template-columns: 1fr;
  }

  .chat-window {
    width: calc(100vw - 24px);
    right: 12px;
    bottom: 80px;
    height: calc(100vh - 100px);
  }
}