/* ==========================================================================
   devMark - Executive Personal Website Stylesheet
   Sleek Obsidian, Glassmorphism, Electric Azure & Modern Tech Aesthetic
   ========================================================================== */

:root {
  /* Colors */
  --bg-primary: #070a12;
  --bg-secondary: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.72);
  --bg-card-hover: rgba(26, 38, 66, 0.85);
  --bg-card-elevated: rgba(30, 41, 59, 0.7);
  --bg-input: rgba(11, 17, 32, 0.85);
  
  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-accent: rgba(56, 189, 248, 0.35);
  --border-ai: rgba(129, 140, 248, 0.35);
  
  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-bright: #ffffff;
  
  /* Accents */
  --accent-cyan: #38bdf8;
  --accent-cyan-glow: rgba(56, 189, 248, 0.25);
  --accent-blue: #2563eb;
  --accent-indigo: #6366f1;
  --accent-violet: #818cf8;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  --gradient-text: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  --gradient-accent-text: linear-gradient(135deg, #38bdf8 15%, #818cf8 85%);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s var(--ease-spring);
  
  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-cyan);
  color: #030712;
}

/* Interactive Canvas Background */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.65;
}

/* Ambient Glows */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.3;
}

.ambient-glow-1 {
  top: -100px;
  left: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.3) 0%, transparent 70%);
}

.ambient-glow-2 {
  top: 40%;
  right: -80px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
}

.ambient-glow-3 {
  bottom: 5%;
  left: -50px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 85px 0;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
}

/* Badges & Section Headers */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
  font-size: 0.825rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  backdrop-filter: blur(8px);
}

.section-badge.ai-badge {
  background: rgba(129, 140, 248, 0.1);
  border-color: var(--border-ai);
  color: var(--accent-violet);
}

.section-header {
  margin-bottom: 44px;
}

.section-header.text-center {
  text-align: center;
}

.section-title {
  font-size: clamp(1.9rem, 3.2vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  line-height: 1;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #030712;
  box-shadow: 0 4px 18px var(--accent-cyan-glow);
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  color: #fff;
}

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

/* Header & Navbar */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(7, 10, 18, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

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

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-symbol {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-symbol-text {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--accent-cyan);
}

.brand-text {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.brand-text .mark {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-left: 2px;
}

.brand-role-badge {
  font-size: 0.72rem;
  padding: 3px 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
  border-radius: var(--radius-full);
  margin-left: 8px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

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

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

/* Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.lang-switch:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.lang-opt {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.lang-opt.active {
  color: var(--accent-cyan);
}

.lang-sep {
  color: var(--border-subtle);
  font-size: 0.7rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 8px;
  cursor: pointer;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

/* Hero Section */
.hero-section {
  padding-top: calc(var(--header-height) + 50px);
  padding-bottom: 70px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
}

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

.hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.hero-headline {
  font-size: clamp(2.3rem, 4vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.email-quick-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.email-quick-copy:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: var(--accent-cyan);
  color: #fff;
}

.copy-icon {
  width: 16px;
  height: 16px;
}

/* Profile Card */
.hero-visual {
  position: relative;
}

.profile-card-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 3px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(129, 140, 248, 0.15), rgba(16, 185, 129, 0.35));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.profile-card {
  background: var(--bg-secondary);
  border-radius: calc(var(--radius-lg) - 2px);
  overflow: hidden;
  position: relative;
}

.profile-image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform var(--transition-normal);
}

.profile-card:hover .profile-image {
  transform: scale(1.03);
}

.profile-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  background: linear-gradient(to top, var(--bg-secondary), transparent);
}

.profile-content {
  padding: 22px;
  position: relative;
  z-index: 2;
  margin-top: -24px;
}

.profile-name {
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

/* Floating Badges */
.floating-badge {
  position: absolute;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 3;
  animation: float 6s ease-in-out infinite;
}

.floating-badge-1 {
  top: -18px;
  left: -20px;
  border-color: var(--border-accent);
}

.floating-badge-2 {
  bottom: -18px;
  right: -18px;
  animation-delay: -3s;
  border-color: var(--border-ai);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.badge-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge-icon.ai {
  background: rgba(129, 140, 248, 0.15);
  color: var(--accent-violet);
}

.badge-number {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.badge-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 3px;
}

/* Quote Card (Filosofía) */
.leadership-quote {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
}

.quote-text {
  color: #fff;
}

/* Architecture Section */
.architecture-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
}

.arch-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

.arch-header-info h3 {
  font-size: 1.45rem;
  margin-bottom: 4px;
}

.arch-header-info p {
  font-size: 0.92rem;
  margin: 0;
}

.arch-legend {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot.cyan { background: var(--accent-cyan); }
.legend-dot.violet { background: var(--accent-violet); }
.legend-dot.emerald { background: var(--accent-emerald); }

.pipeline-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 30px;
}

.pipeline-node {
  background: rgba(11, 17, 32, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 14px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.pipeline-node::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

.pipeline-node:last-child::after {
  display: none;
}

.pipeline-node:hover,
.pipeline-node.active {
  background: rgba(30, 41, 59, 0.9);
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.15);
}

.pipeline-node.active::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--accent-cyan);
}

.node-step-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.node-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.pipeline-node.active .node-icon {
  background: var(--gradient-brand);
  color: #030712;
}

.node-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
}

.arch-detail-panel {
  background: rgba(11, 17, 32, 0.9);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 28px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  min-height: 190px;
}

.arch-detail-content h4 {
  font-size: 1.25rem;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.arch-detail-content p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

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

.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-primary);
}

.arch-impact-box {
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius-sm);
  padding: 18px;
  border-left: 3px solid var(--accent-emerald);
}

.impact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent-emerald);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.impact-text {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.5;
}

/* Expertise Grid */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all var(--transition-normal);
}

.expertise-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.expertise-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.expertise-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.expertise-card.ai-card .expertise-icon-wrap {
  background: rgba(129, 140, 248, 0.1);
  color: var(--accent-violet);
}

.expertise-card.lead-card .expertise-icon-wrap {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
}

.expertise-card.cloud-card .expertise-icon-wrap {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
}

.expertise-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}

.expertise-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Stack Filters & Grid */
.stack-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.filter-btn {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background: rgba(30, 41, 59, 0.8);
  color: #fff;
}

.filter-btn.active {
  background: var(--gradient-brand);
  color: #030712;
  border-color: transparent;
  font-weight: 700;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.stack-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

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

.stack-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.stack-category-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

.stack-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.stack-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-cyan) 0%, var(--accent-violet) 50%, rgba(255, 255, 255, 0.05) 100%);
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 32px;
}

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

.timeline-marker {
  position: absolute;
  left: 15px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-cyan);
  box-shadow: 0 0 14px var(--accent-cyan-glow);
  z-index: 2;
}

.timeline-item:nth-child(2) .timeline-marker {
  border-color: var(--accent-violet);
}

.timeline-item:nth-child(3) .timeline-marker,
.timeline-item:nth-child(4) .timeline-marker {
  border-color: var(--text-muted);
  box-shadow: none;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
  transform: translateX(3px);
}

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

.timeline-role {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}

.timeline-company {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline-body p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* Contact Hub */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: flex-start;
}

.contact-info-panel h2 {
  margin-bottom: 12px;
}

.contact-info-panel p {
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 24px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-method-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

.method-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.method-icon.linkedin {
  background: rgba(10, 102, 194, 0.15);
  color: #38bdf8;
}

.method-icon.github {
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
}

.method-info {
  flex-grow: 1;
}

.method-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.method-value {
  font-size: 0.92rem;
  color: #fff;
  font-weight: 600;
}

.contact-form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
}

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-glow);
}

.form-textarea {
  min-height: 110px;
  resize: vertical;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--accent-cyan);
  box-shadow: var(--shadow-lg), 0 0 20px var(--accent-cyan-glow);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
  backdrop-filter: blur(12px);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast-icon {
  color: var(--accent-cyan);
  width: 18px;
  height: 18px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: #04060a;
  padding: 45px 0 25px;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

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

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-cyan);
  color: #fff;
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-tech-stack {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-badge-group,
  .hero-cta-group {
    justify-content: center;
  }
  
  .hero-lead {
    margin: 0 auto 28px;
  }
  
  .profile-card-wrapper {
    max-width: 380px;
    margin: 0 auto;
  }
  
  .pipeline-flow {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .pipeline-node::after {
    content: '↓';
    right: 50%;
    top: auto;
    bottom: -14px;
    transform: translateX(50%);
  }
  
  .arch-detail-panel {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(7, 10, 18, 0.98);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-medium);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }
  
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav-actions {
    display: none;
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .floating-badge {
    position: static;
    margin: 10px auto;
    max-width: 240px;
  }
}