/* ==========================================================================
   Luan Chaves - DevOps Engineer Portfolio
   Design System & Modern Dark Architecture Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Dark & Technical */
  --bg-main: #0a0e17;
  --bg-surface: #111827;
  --bg-surface-elevated: #162032;
  --bg-surface-alt: #0d1320;
  --bg-header: rgba(10, 14, 23, 0.88);
  --bg-terminal: #070a10;

  /* Text & Content */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0a0e17;

  /* Brand & Accents */
  --cyan-primary: #00e5ff;
  --cyan-hover: #38bdf8;
  --cyan-glow: rgba(0, 229, 255, 0.18);
  --cyan-border: rgba(0, 229, 255, 0.35);
  
  --indigo-accent: #6366f1;
  --indigo-glow: rgba(99, 102, 241, 0.2);
  --purple-accent: #a855f7;
  --emerald-success: #10b981;
  --amber-warning: #f59e0b;
  --rose-danger: #f43f5e;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-active: rgba(0, 229, 255, 0.5);

  /* Shadows */
  --shadow-sm: rgba(0, 0, 0, 0.4) 0px 2px 4px 0px;
  --shadow-md: rgba(0, 0, 0, 0.2) 0px 0px 12px 0px inset;
  --shadow-lg: rgba(8, 9, 10, 0.6) 0px 4px 32px 0px;
  --shadow-cyan: 0 0 20px rgba(0, 229, 255, 0.25);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 12px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Typography */
  --font-heading: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Berkeley Mono', ui-monospace, monospace;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
}

/* --------------------------------------------------------------------------
   2. Reset & Global Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  font-size: 16px;
  color-scheme: dark;
}

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

/* Scroll Progress Bar */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan-primary), var(--indigo-accent), var(--purple-accent));
  width: 0%;
  z-index: 10000;
  transition: width 0.1s linear;
}

/* Subtle background grid pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 100% 50%, rgba(0, 229, 255, 0.04) 0%, transparent 40%),
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 64px 64px, 64px 64px;
  pointer-events: none;
  z-index: -1;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 510;
  line-height: 1.15;
  letter-spacing: -0.022em;
  font-feature-settings: "cv01" on, "ss03" on, "zero" on;
}

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

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

code, pre {
  font-family: var(--font-mono);
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--cyan-primary);
  outline-offset: 3px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-surface-alt);
}

/* Section Header Component */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 510;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--cyan-primary);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 510;
  margin-bottom: 16px;
  letter-spacing: -0.022em;
  line-height: 1.1;
  font-feature-settings: "cv01" on, "ss03" on, "zero" on;
}

.section-title span {
  color: var(--cyan-primary);
  background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--indigo-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Button Component Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 510;
  letter-spacing: -0.011em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan-primary);
  color: #08090a;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.btn-primary:hover {
  background: #38bdf8;
  box-shadow: 0 2px 8px rgba(0, 229, 255, 0.4);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
  font-weight: 400;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--cyan-primary);
  background: rgba(0, 229, 255, 0.05);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   3. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  width: 100%;
  z-index: 1000;
  pointer-events: none;
  transition: var(--transition-normal);
}

.site-header.scrolled {
  top: 8px;
}

.header-container {
  max-width: 1140px;
  width: calc(100% - 32px);
  margin: 0 auto;
  pointer-events: auto;
}

.header-inner.glass-pill {
  background: rgba(12, 15, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  padding: 6px 14px 6px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  height: 54px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-img {
  width: auto;
  height: 38px;
  max-width: 48px;
  object-fit: contain;
  background: transparent;
  border: none;
  filter: drop-shadow(0 2px 6px rgba(0, 229, 255, 0.25));
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.brand-logo:hover .logo-img {
  transform: scale(1.08);
  filter: drop-shadow(0 0 12px var(--cyan-primary));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Header Telemetry Tag */
.header-telemetry-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.header-telemetry-tag .telemetry-ping {
  color: var(--cyan-primary);
  font-weight: 600;
}

/* Desktop Navigation Menu */
.nav-desktop {
  display: flex;
  align-items: center;
}

.nav-desktop ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2px;
}

.nav-desktop .nav-link {
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 400;
  color: #8a8f98;
  border-radius: 9999px;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.nav-desktop .nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-desktop .nav-link.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 500;
}

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

/* Mobile Menu Button */
.btn-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1.4rem;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.btn-mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
}

/* Mobile Drawer */
.menu-mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  z-index: 10001;
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

.menu-mobile-drawer.abrir-menu {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}

.btn-close-drawer {
  background: rgba(255, 255, 255, 0.05);
  border: none;
  color: var(--text-secondary);
  font-size: 1.3rem;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.btn-close-drawer:hover {
  color: var(--rose-danger);
  background: rgba(244, 63, 94, 0.1);
}

.nav-mobile-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.mobile-nav-link i {
  font-size: 1.1rem;
  color: var(--cyan-primary);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: rgba(0, 229, 255, 0.08);
  color: var(--cyan-primary);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.overlay-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

/* --------------------------------------------------------------------------
   4. Hero Section & Command Center Hub
   -------------------------------------------------------------------------- */
.hero-section {
  min-height: 90vh;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 80px;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

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

.micro-spec-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.micro-spec-tag .spec-index {
  color: var(--cyan-primary);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.micro-spec-tag .spec-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--emerald-success);
  font-weight: 500;
}

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

@keyframes pulse-dot {
  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-main-heading {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.hero-name-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.05;
  color: #ffffff;
  letter-spacing: -0.03em;
  font-family: var(--font-heading);
}

.hero-subtitle {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--cyan-primary);
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.hero-description {
  font-size: 1.05rem;
  color: #94a3b8;
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-tech-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.hero-tech-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.tech-mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #d0d6e0;
}

.tech-mini-badge i {
  color: var(--cyan-primary);
}

/* Command Center Frame */
.hero-visual-card {
  position: relative;
  width: 100%;
}

.command-center-frame {
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset, 0 20px 48px rgba(0, 0, 0, 0.6), 0 0 32px rgba(0, 229, 255, 0.04);
  position: relative;
}

.frame-header {
  background: rgba(255, 255, 255, 0.02);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-controls {
  display: flex;
  gap: 6px;
}

.ctrl-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.ctrl-dot.red { background: #ff5f56; }
.ctrl-dot.yellow { background: #ffbd2e; }
.ctrl-dot.green { background: #27c93f; }

.frame-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #8a8f98;
  display: flex;
  align-items: center;
  gap: 6px;
}

.frame-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--emerald-success);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 2px 8px;
  border-radius: 9999px;
}

/* Brand Showcase Strip */
.frame-brand-strip {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, rgba(0, 0, 0, 0.2) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.brand-avatar-box {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(0, 229, 255, 0.25);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.12);
  padding: 4px;
}

.brand-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 229, 255, 0.3));
}

.brand-identity-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.identity-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.identity-role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan-primary);
}

.identity-tags {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.micro-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 1px 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  color: #8a8f98;
}

/* Infrastructure Grid */
.frame-system-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sys-stat-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.sys-stat-card:hover {
  border-color: rgba(0, 229, 255, 0.3);
  background: rgba(0, 229, 255, 0.02);
}

.sys-stat-card .stat-icon {
  font-size: 1.1rem;
  line-height: 1;
  margin-top: 2px;
}

.sys-stat-card .stat-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 0.74rem;
  font-weight: 600;
  color: #ffffff;
}

/* Console Body */
.frame-console-body {
  padding: 12px 16px;
  background: #06080b;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.console-line {
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

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

.c-prompt { color: var(--cyan-primary); font-weight: 600; }
.c-cmd { color: #ffffff; }
.c-success { color: var(--emerald-success); }
.c-cyan { color: var(--cyan-primary); }
.c-white { color: #f8fafc; }
.c-dim { color: var(--text-muted); }

/* Frame Footer */
.frame-footer-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, 0.015);
  padding: 8px 12px;
  text-align: center;
}

.telemetry-slot {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.slot-lbl {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.slot-val {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: #ffffff;
}

.text-cyan { color: var(--cyan-primary) !important; }
.text-emerald { color: var(--emerald-success) !important; }
.text-warning { color: var(--amber-warning) !important; }
.text-indigo { color: var(--indigo-accent) !important; }

/* --------------------------------------------------------------------------
   5. Metrics Section
   -------------------------------------------------------------------------- */
.metrics-section {
  padding: 40px 0 80px 0;
  position: relative;
}

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

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
  opacity: 0;
  transition: var(--transition-normal);
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-md), 0 0 20px rgba(0, 229, 255, 0.1);
}

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

.metric-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--cyan-primary);
  margin-bottom: 20px;
}

.metric-number-wrap {
  margin-bottom: 8px;
}

.metric-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 590;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.metric-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.metric-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   6. About Section
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-photo-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-lg);
  background: var(--bg-surface);
}

.about-photo-wrapper img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s ease;
}

.about-photo-wrapper:hover img {
  transform: scale(1.03);
}

.about-badge-overlay {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-overlay-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(0, 229, 255, 0.1);
  color: var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.badge-overlay-text strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.badge-overlay-text span {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.about-text-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.about-core-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 12px 0;
}

.pillar-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 14px 16px;
  border-radius: var(--radius-md);
}

.pillar-item i {
  color: var(--cyan-primary);
  font-size: 1.2rem;
  margin-top: 2px;
}

.pillar-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.pillar-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.about-social-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 8px;
}

/* --------------------------------------------------------------------------
   7. Tech Stack Section
   -------------------------------------------------------------------------- */
.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

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

.category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 18px;
}

.category-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  font-size: 1.15rem;
}

.category-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.tech-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tech-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.tech-item:hover {
  background: rgba(0, 229, 255, 0.04);
  border-color: rgba(0, 229, 255, 0.2);
}

.tech-item-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tech-item-info i {
  font-size: 1.2rem;
  color: var(--cyan-primary);
}

.tech-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   8. DevOps & Engineering Projects (Cases)
   -------------------------------------------------------------------------- */
.cases-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.case-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-normal);
  position: relative;
}

.case-card:hover {
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 229, 255, 0.07);
}

.case-card-header {
  padding: 28px 32px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: rgba(255, 255, 255, 0.015);
}

.case-title-area {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.case-title {
  font-size: 1.5rem;
  font-weight: 510;
}

.case-highlight-metric {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--cyan-border);
  padding: 10px 20px;
  border-radius: var(--radius-lg);
}

.highlight-val {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 590;
  color: var(--cyan-primary);
}

.highlight-lbl {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.2;
}

.case-card-body {
  padding: 32px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.case-details-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.case-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case-block-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.case-block-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.case-sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  background: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.case-tech-group h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

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

.case-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
}

.case-tag i {
  color: var(--cyan-primary);
}

.case-result-box {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  padding: 16px;
}

.result-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--emerald-success);
  font-weight: 600;
  margin-bottom: 6px;
}

.result-text {
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   9. Architecture Diagrams
   -------------------------------------------------------------------------- */
.arch-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.arch-nav-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 16px;
  gap: 8px;
  overflow-x: auto;
}

.arch-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.arch-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.arch-tab-btn.active {
  color: var(--cyan-primary);
  background: rgba(0, 229, 255, 0.08);
  border-color: var(--cyan-border);
  font-weight: 600;
}

.arch-diagram-panel {
  padding: 40px 32px;
  display: none;
}

.arch-diagram-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Visual Architecture Flow Diagram */
.diagram-flow-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.flow-title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.flow-title-bar h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.flow-nodes-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  gap: 16px;
  overflow-x: auto;
  padding: 20px 0;
}

.flow-node {
  background: var(--bg-terminal);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  min-width: 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  transition: var(--transition-normal);
}

.flow-node:hover {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
  transform: translateY(-4px);
}

.flow-node-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.flow-node h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.flow-node span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  font-size: 1.2rem;
  opacity: 0.7;
}

.flow-connector i {
  animation: pulse-arrow 1.5s infinite alternate;
}

@keyframes pulse-arrow {
  0% { transform: translateX(-2px); opacity: 0.5; }
  100% { transform: translateX(2px); opacity: 1; }
}

.flow-legend {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   10. DevOps Lab Section
   -------------------------------------------------------------------------- */
.devops-lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.lab-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.lab-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.lab-tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.lab-tech-badge i {
  color: var(--cyan-primary);
  font-size: 1.1rem;
}

/* Status Badges */
.status-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.completed {
  background: rgba(16, 185, 129, 0.12);
  color: var(--emerald-success);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.status-badge.in-progress {
  background: rgba(56, 189, 248, 0.12);
  color: var(--blue);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.status-badge.learning {
  background: rgba(168, 85, 247, 0.12);
  color: var(--purple-accent);
  border: 1px solid rgba(168, 85, 247, 0.25);
}

.lab-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.lab-objective {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}

.lab-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. Professional Experience Timeline
   -------------------------------------------------------------------------- */
.timeline-wrapper {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}

.timeline-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan-primary), var(--indigo-accent), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 3px solid var(--cyan-primary);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

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

.timeline-card:hover {
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-md);
}

.timeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 510;
  color: var(--text-primary);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan-primary);
  background: rgba(0, 229, 255, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 16px;
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.timeline-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.timeline-bullets li i {
  color: var(--cyan-primary);
  font-size: 0.85rem;
  margin-top: 4px;
}

.timeline-skills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   12. Open Source & GitHub Section
   -------------------------------------------------------------------------- */
.github-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 32px;
  align-items: stretch;
}

.github-profile-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  box-shadow: var(--shadow-lg);
}

.github-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--cyan-primary);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.3);
}

.github-user-meta h4 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.gh-handle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-primary);
  margin-bottom: 8px;
}

.github-bio {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.github-counts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

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

.count-box .num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 510;
  color: var(--text-primary);
}

.count-box .lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.github-repo-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: space-between;
}

.repo-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.repo-card:hover {
  border-color: var(--cyan-border);
  transform: translateX(4px);
}

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

.repo-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--cyan-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.repo-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.repo-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   13. Built with DevOps Case Box
   -------------------------------------------------------------------------- */
.built-with-devops-card {
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.9) 0%, rgba(22, 32, 50, 0.8) 100%);
  border: 1px solid var(--cyan-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 229, 255, 0.08);
  margin-top: 40px;
}

.built-devops-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.built-devops-info h3 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.pipeline-flow-mini {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.pipe-step {
  padding: 6px 12px;
  background: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pipe-step.active-step {
  border-color: var(--emerald-success);
  color: var(--emerald-success);
}

.pipe-arrow {
  color: var(--cyan-primary);
}

/* --------------------------------------------------------------------------
   14. Development Projects (Complementary)
   -------------------------------------------------------------------------- */
.web-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.web-project-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-md), 0 0 24px rgba(0, 229, 255, 0.08);
}

.web-project-img {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center top;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-terminal);
}

.web-project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 14, 23, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 20px;
  opacity: 0;
  transition: var(--transition-normal);
}

.web-project-card:hover .web-project-overlay {
  opacity: 1;
}

.web-project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
  gap: 16px;
}

.web-project-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.web-tag-cat {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 510;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.web-project-title {
  font-size: 1.2rem;
  font-weight: 510;
  letter-spacing: -0.012em;
  color: var(--text-primary);
  line-height: 1.3;
}

.web-project-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 6px;
}

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

.web-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-badges);
  color: var(--text-secondary);
}

.web-project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.web-project-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

.web-project-link-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 510;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: var(--transition-fast);
}

.web-project-link-btn:hover {
  color: var(--cyan-primary);
}

/* --------------------------------------------------------------------------
   15. Resume & Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
}

.contact-info-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 30px;
}

.contact-info-top h3 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.contact-links-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.contact-link-item:hover {
  background: rgba(0, 229, 255, 0.05);
  border-color: var(--cyan-border);
}

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

.contact-icon-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  font-size: 1.2rem;
}

.contact-link-labels span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.contact-link-labels strong {
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* Form Styles */
.contact-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 36px;
}

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

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--cyan-primary);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-status {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin-top: 16px;
  display: none;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--emerald-success);
}

.form-status.info {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--blue);
}

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

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 24px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.footer-social-btn:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   17. Scroll Reveal & Utility Animations
   -------------------------------------------------------------------------- */
/* Fallback: When JS is loading or unavailable, ensure content is 100% visible */
body:not(.js-ready) .reveal,
body:not(.js-ready) .reveal-left,
body:not(.js-ready) .reveal-right,
body:not(.js-ready) .reveal-scale {
  opacity: 1 !important;
  transform: none !important;
}

.reveal, .reveal-left, .reveal-right, .reveal-scale {
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal {
  transform: translateY(30px);
}

.reveal-left {
  transform: translateX(-30px);
}

.reveal-right {
  transform: translateX(30px);
}

.reveal-scale {
  transform: scale(0.96);
}

.revealed {
  opacity: 1 !important;
  transform: translate(0) scale(1) !important;
}

.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   18. Responsive Breakpoints
   -------------------------------------------------------------------------- */

/* Large Tablets & Small Laptops (max-width: 1024px) */
@media screen and (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .d-none-mobile {
    display: none !important;
  }

  .hero-name-title {
    font-size: 2.75rem;
  }

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

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .case-card-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .github-wrapper {
    grid-template-columns: 1fr;
  }

  .built-devops-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

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

/* Tablets & Large Mobile (max-width: 768px) */
@media screen and (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .section {
    padding: 70px 0;
  }

  .nav-desktop, .header-cta-desktop {
    display: none;
  }

  .btn-mobile-toggle {
    display: inline-flex;
  }

  .hero-name-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .frame-system-grid {
    grid-template-columns: 1fr;
  }

  .frame-footer-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .section-title {
    font-size: 2rem;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tech-stack-grid {
    grid-template-columns: 1fr;
  }

  .devops-lab-grid {
    grid-template-columns: 1fr;
  }

  .web-projects-grid {
    grid-template-columns: 1fr;
  }

  .about-core-pillars {
    grid-template-columns: 1fr;
  }

  .case-card-header {
    padding: 20px;
  }

  .case-card-body {
    padding: 20px;
  }

  .contact-info-card, .contact-form-card {
    padding: 24px;
  }

  .flow-nodes-container {
    flex-direction: column;
  }

  .flow-connector i {
    transform: rotate(90deg);
  }

  @keyframes pulse-arrow {
    0% { transform: translateY(-2px) rotate(90deg); opacity: 0.5; }
    100% { transform: translateY(2px) rotate(90deg); opacity: 1; }
  }
}

/* Small Mobile (max-width: 480px) */
@media screen and (max-width: 480px) {
  .hero-name-title {
    font-size: 1.85rem;
  }

  .hero-subtitle {
    font-size: 0.92rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .frame-brand-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .metric-number {
    font-size: 1.8rem;
  }

  .timeline-item {
    padding-left: 40px;
  }

  .timeline-wrapper::before {
    left: 10px;
  }

  .timeline-dot {
    left: 1px;
    width: 16px;
    height: 16px;
  }

  .timeline-card {
    padding: 18px;
  }
}