/* ==========================================================================
   BIKRANT DAHAL - CYBERSECURITY PORTFOLIO
   Cyber Theme, HUD, SOC Widgets & Interactive Labs Styling
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TELEMETRY HUD BAR (Top Status Strip)
   -------------------------------------------------------------------------- */
.hud-bar {
  height: var(--hud-height);
  background: rgba(6, 9, 17, 0.92);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 101;
  backdrop-filter: blur(8px);
}

[data-theme="light"] .hud-bar {
  background: rgba(241, 245, 249, 0.95);
  border-bottom-color: var(--border-subtle);
}

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

.hud-left, .hud-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.hud-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.hud-pill {
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(0, 240, 255, 0.2);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.hud-btn {
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-fast);
}

.hud-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* --------------------------------------------------------------------------
   2. MAIN NAVBAR
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  z-index: 100;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  height: 60px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  border-bottom-color: var(--border-highlight);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(59, 130, 246, 0.3));
  border: 1px solid var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

.brand-title {
  font-family: var(--font-heading);
}

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

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

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   3. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 80px 0 100px;
  min-height: calc(100vh - var(--header-height) - var(--hud-height));
  display: flex;
  align-items: center;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.hero-headline {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-typed-container {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  color: var(--cyan);
  min-height: 36px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.typed-cursor {
  display: inline-block;
  width: 3px;
  height: 1.2em;
  background: var(--cyan);
  animation: blink 0.9s infinite;
  box-shadow: 0 0 8px var(--cyan);
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 620px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.stat-box {
  display: flex;
  flex-direction: column;
}

.stat-box .stat-num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--cyan);
}

.stat-box .stat-lbl {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Avatar Cyber Hologram */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hologram-wrapper {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hologram-ring-outer {
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 1px dashed var(--border-highlight);
  animation: radarSweep 25s linear infinite;
}

.hologram-ring-inner {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--cyan);
  border-bottom-color: var(--green);
  animation: radarSweep 10s linear infinite reverse;
}

.avatar-image-container {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--cyan);
  box-shadow: 0 0 35px rgba(0, 240, 255, 0.35);
  position: relative;
  background: var(--bg-tertiary);
}

.avatar-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.05) saturate(1.1);
  transition: transform 0.5s ease;
}

.avatar-image-container:hover img {
  transform: scale(1.04);
}

.avatar-scanner {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 15px var(--cyan);
  animation: scanline 4s linear infinite;
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   4. INTERACTIVE SECURITY TOOLS & LABS
   -------------------------------------------------------------------------- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 28px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tool-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.tool-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(0, 255, 157, 0.1);
  border: 1px solid rgba(0, 255, 157, 0.3);
  color: var(--green);
}

.tool-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.cyber-input {
  width: 100%;
  background: rgba(6, 9, 17, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="light"] .cyber-input {
  background: #ffffff;
}

.cyber-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

/* Entropy & Password Meter */
.entropy-meter-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.entropy-bar-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.entropy-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--red);
  transition: width 0.3s ease, background-color 0.3s ease;
  box-shadow: 0 0 10px currentColor;
}

.entropy-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.entropy-metric {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.metric-title {
  color: var(--text-dim);
  margin-bottom: 2px;
}

.metric-val {
  font-weight: 600;
  color: var(--text-main);
}

/* SOC Alert Stream */
.soc-stream-container {
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 4px;
}

.soc-stream-item {
  background: rgba(10, 16, 32, 0.8);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.soc-stream-item:hover {
  background: rgba(18, 28, 52, 0.95);
  border-color: var(--border-highlight);
  transform: translateX(4px);
}

.soc-stream-item.severity-high {
  border-left-color: var(--red);
}

.soc-stream-item.severity-med {
  border-left-color: var(--amber);
}

.soc-stream-item.severity-info {
  border-left-color: var(--cyan);
}

/* Multi Decoder Tabs */
.decoder-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.decoder-tab {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.decoder-tab.active, .decoder-tab:hover {
  background: rgba(0, 240, 255, 0.12);
  color: var(--cyan);
  border-color: var(--cyan);
}

/* --------------------------------------------------------------------------
   5. HOME LAB ARCHITECTURE SECTION
   -------------------------------------------------------------------------- */
.lab-container {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}

.lab-topology {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.topology-subnet {
  border: 1px dashed var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
  position: relative;
  background: rgba(0, 240, 255, 0.02);
}

.subnet-label {
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--bg-primary);
  padding: 2px 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  border: 1px solid var(--border-highlight);
  border-radius: 4px;
}

.nodes-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
  margin-top: 10px;
}

.lab-node {
  background: rgba(6, 9, 17, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

[data-theme="light"] .lab-node {
  background: #ffffff;
}

.lab-node:hover, .lab-node.active {
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  transform: translateY(-3px);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-name {
  font-size: 0.9rem;
  font-weight: 700;
}

.node-ip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
}

.node-role {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.lab-inspector {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* --------------------------------------------------------------------------
   6. WRITEUPS & CTF GALLERY
   -------------------------------------------------------------------------- */
.writeups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.writeup-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  cursor: pointer;
}

.writeup-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.writeup-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* --------------------------------------------------------------------------
   7. CERTIFICATIONS & ROADMAP
   -------------------------------------------------------------------------- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.cert-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.cert-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-highlight);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cert-status {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-active {
  background: rgba(0, 255, 157, 0.12);
  color: var(--green);
  border: 1px solid rgba(0, 255, 157, 0.3);
}

.status-planned {
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* --------------------------------------------------------------------------
   8. SECURE CONTACT & FOOTER
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.pgp-card {
  background: rgba(6, 9, 17, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 32px;
  margin-top: 80px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

/* --------------------------------------------------------------------------
   9. MODAL WINDOWS
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 9, 17, 0.85);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

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

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.7);
  padding: 32px;
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.4rem;
  transition: color var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--cyan);
}

/* --------------------------------------------------------------------------
   RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-badges, .hero-cta-group {
    justify-content: center;
  }
  .lab-container, .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .hud-right .hud-item:first-child {
    display: none;
  }
  .hologram-wrapper {
    width: 260px;
    height: 260px;
  }
  .avatar-image-container {
    width: 220px;
    height: 220px;
  }
}