/* ==========================================================================
   CSS DESIGN SYSTEM & TOKENS
   Theme: Modern Editorial Dark & Light for Senior Cloud & DevOps Engineer
   ========================================================================== */

:root {
  /* Color Palette - Dark Default */
  --bg-main: #090d16;
  --bg-surface: #111726;
  --bg-surface-elevated: #182236;
  --bg-surface-subtle: #0d1320;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-highlight: rgba(56, 189, 248, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-cloud: #38bdf8;
  --accent-cloud-glow: rgba(56, 189, 248, 0.15);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.15);
  --accent-purple: #a855f7;

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

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

  --transition-fast: 150ms ease;
  --transition-normal: 250ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  --container-width: 1200px;
  --header-height: 72px;
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-subtle: #f8fafc;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.14);
  --border-highlight: rgba(2, 132, 199, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-cloud: #0284c7;
  --accent-cloud-glow: rgba(2, 132, 199, 0.12);
  --accent-emerald: #059669;
  --accent-emerald-glow: rgba(5, 150, 105, 0.12);
  --accent-purple: #7c3aed;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

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

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

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

.section-padding {
  padding: 96px 0;
}

/* Ambient glow in background */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 600px;
  background: radial-gradient(circle at 50% -20%, rgba(56, 189, 248, 0.09) 0%, rgba(16, 185, 129, 0.03) 45%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   TYPOGRAPHY & SECTION HEADERS
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cloud);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   BUTTONS & INTERACTIVE CONTROLS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-cloud);
  color: #04101e;
}

.btn-primary:hover {
  background-color: #7dd3fc;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.35);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-white {
  background-color: #ffffff;
  color: #0f172a;
}

.btn-white:hover {
  background-color: #f1f5f9;
}

.btn-full {
  width: 100%;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-normal);
}

[data-theme="light"] .site-header {
  background-color: rgba(248, 250, 252, 0.88);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-name {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.logo-divider {
  color: var(--border-medium);
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cloud);
  letter-spacing: 0.1em;
}

.desktop-nav .nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent-cloud);
  border-radius: var(--radius-full);
}

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

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--bg-surface);
  border-color: var(--border-medium);
}

.sun-icon {
  display: none;
  width: 20px;
  height: 20px;
}

.moon-icon {
  display: block;
  width: 20px;
  height: 20px;
}

[data-theme="light"] .sun-icon {
  display: block;
}

[data-theme="light"] .moon-icon {
  display: none;
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
}

.hamburger-btn span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  z-index: 99;
}

.mobile-drawer.open {
  display: block;
  animation: slideDown 200ms ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.mobile-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.125rem;
  font-weight: 600;
  display: block;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  padding: 72px 0 96px;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.badge-role {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cloud);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cloud);
}

.hero-title {
  font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.15;
}

.hero-subtext {
  display: block;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75em;
  margin-top: 8px;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.metrics-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 24px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  max-width: 620px;
}

.metric-item {
  flex: 1;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.metric-divider {
  width: 1px;
  height: 36px;
  background-color: var(--border-subtle);
}

/* Hero Portrait Card */
.portrait-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.portrait-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-xl);
}

.portrait-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: calc(var(--radius-lg) - 4px);
  overflow: hidden;
  border: 3px solid #ffffff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   ABOUT & CORE ENGINEERING PILLARS SECTION
   ========================================================================== */

.resume-pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.discipline-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.discipline-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.cloud-discipline .discipline-icon-box {
  background-color: var(--accent-cloud-glow);
  color: var(--accent-cloud);
}

.discipline-icon-box svg {
  width: 28px;
  height: 28px;
}

.discipline-title {
  font-size: 1.375rem;
  margin-bottom: 16px;
}

.discipline-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.discipline-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.discipline-features li {
  position: relative;
  padding-left: 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.discipline-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-cloud);
  font-weight: 700;
}

/* ==========================================================================
   CLOUD & DEVOPS SECTION
   ========================================================================== */

.cloud-project-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  margin-bottom: 40px;
  transition: all var(--transition-normal);
}

.cloud-project-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.cloud-project-preview {
  position: relative;
  background-color: #070b12;
  overflow: hidden;
  min-height: 320px;
}

.cloud-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.cloud-project-card:hover .cloud-preview-img {
  transform: scale(1.03);
}

.cloud-preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(9, 13, 22, 0.4);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.cloud-project-preview:hover .cloud-preview-overlay {
  opacity: 1;
}

.cloud-project-info {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent-cloud);
}

.project-title {
  font-size: 1.5rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.project-summary {
  color: var(--text-secondary);
  font-size: 0.96875rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.project-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
  padding: 16px;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

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

.spec-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.spec-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text-primary);
}

.project-actions {
  display: flex;
  gap: 12px;
}

.cloud-project-card:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   SKILLS & CERTIFICATIONS SECTION
   ========================================================================== */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-fast);
}

.skill-category-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-3px);
}

.certs-card {
  border-left: 3px solid var(--accent-emerald);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

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

.skill-group-title {
  font-size: 1.125rem;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 6px 12px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.cert-pill {
  color: var(--text-primary);
  background-color: var(--accent-emerald-glow);
  border-color: rgba(16, 185, 129, 0.3);
}

.cert-item-pill {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 14px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-emerald);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.cert-item-pill:hover {
  border-color: var(--border-medium);
  border-left-color: var(--accent-emerald);
  transform: translateX(3px);
}

.cert-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   PERSONAL & HOBBIES SECTION
   ========================================================================== */

.github-showcase-card {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-surface-elevated) 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.github-showcase-card:hover {
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md);
}

.github-showcase-content {
  display: flex;
  align-items: center;
  gap: 20px;
}

.github-icon-badge {
  width: 52px;
  height: 52px;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cloud);
  flex-shrink: 0;
}

.github-icon-badge svg {
  width: 28px;
  height: 28px;
}

.github-showcase-title {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.github-showcase-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
}

#personal-github-cta,
.btn-github {
  background: linear-gradient(135deg, #065f46 0%, #059669 50%, #10b981 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

#personal-github-cta:hover,
.btn-github:hover {
  background: linear-gradient(135deg, #047857 0%, #059669 50%, #34d399 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

.github-cta-icon {
  width: 22px;
  height: 22px;
}

.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.hobby-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

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

.hobby-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.hobby-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.hobby-desc {
  color: var(--text-secondary);
  font-size: 0.90625rem;
  line-height: 1.6;
  margin-bottom: 0;
  flex-grow: 1;
}

.hobby-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.84375rem;
  font-weight: 600;
  color: var(--accent-cloud);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.hobby-link:hover {
  color: #7dd3fc;
  transform: translateX(3px);
}

@media (max-width: 768px) {
  .github-showcase-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

  .github-showcase-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

.contact-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

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

.contact-card-title {
  font-size: 1.375rem;
  margin-bottom: 8px;
}

.contact-card-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

/* Form Elements */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-input,
.form-textarea {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

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

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

.form-status {
  font-size: 0.875rem;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: none;
  line-height: 1.5;
}

.form-status.success {
  display: block;
  background-color: var(--accent-emerald-glow);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #6ee7b7;
}

.form-status.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

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

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Sidebar Elements */
.contact-sidebar-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
}

.sidebar-block {
  display: flex;
  flex-direction: column;
}

#contact-linkedin-cta {
  background: linear-gradient(135deg, #a855f7 0%, #818cf8 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(168, 85, 247, 0.3);
  font-weight: 600;
}

#contact-linkedin-cta:hover {
  background: linear-gradient(135deg, #9333ea 0%, #6366f1 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.45);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

.location-block {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.location-title {
  font-size: 1rem;
  margin-bottom: 8px;
}

.location-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.90625rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.location-icon {
  font-size: 1.125rem;
}

.map-wrapper {
  margin-top: 14px;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-elevated);
  box-shadow: var(--shadow-sm);
}

.location-map-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.map-wrapper:hover .location-map-img {
  transform: scale(1.04);
}

@media (max-width: 860px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
  background-color: var(--bg-surface-subtle);
}

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

.footer-logo {
  font-weight: 800;
  font-size: 1.125rem;
  margin-right: 12px;
}

.footer-tagline {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

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

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--text-primary);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ==========================================================================
   PROJECT MODAL
   ========================================================================== */

.project-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.project-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.project-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(8px);
}

.project-modal-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  overflow-y: auto;
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.project-modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.project-modal-close:hover {
  color: var(--text-primary);
}

.project-modal-close svg {
  width: 22px;
  height: 22px;
}

/* Modal Content Typography */
.modal-header-meta {
  margin-bottom: 20px;
}

.modal-project-title {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.modal-section-title {
  font-size: 1.125rem;
  margin: 24px 0 8px;
  color: var(--accent-cloud);
}

.modal-body-text {
  color: var(--text-secondary);
  font-size: 0.96875rem;
  line-height: 1.7;
}

.modal-spec-list {
  list-style: none;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-spec-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.modal-spec-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-cloud);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .portrait-card {
    max-width: 480px;
    margin: 0 auto;
  }

  .cloud-project-card {
    grid-template-columns: 1fr;
  }

  .cloud-project-preview {
    min-height: 240px;
  }

  .desktop-nav {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }
}

@media (max-width: 640px) {
  .section-padding {
    padding: 64px 0;
  }

  .metrics-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .metric-divider {
    display: none;
  }

  .project-specs {
    grid-template-columns: 1fr;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
  }
}