/* ============================================================
   LINUS NNAMDI OKOLO — Portfolio Styles
   Premium, professional, modern, conversion-focused
   =========================logo=================================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #0b0f14;
  --color-bg-elevated: #111820;
  --color-bg-card: #151c26;
  --color-bg-soft: #1a2330;
  --color-surface: #1e2836;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.14);
  --color-text: #e8edf4;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-primary: #12a08b;
  --color-primary-hover: #2563eb;
  --color-primary-soft: rgba(59, 130, 246, 0.15);
  --color-accent: #22d3ee;
  --color-accent-soft: rgba(34, 211, 238, 0.12);
  --color-success: #34d399;
  --color-success-soft: rgba(52, 211, 153, 0.15);
  --color-light: #f8fafc;
  --color-light-text: #0f172a;
  --color-light-muted: #475569;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
  --transition: 0.2s ease;
  --header-height: 72px;
  --max-width: 1120px;
  --space-section: 5rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: var(--space-section);
}

.section-header {
  margin-bottom: 2.5rem;
  max-width: 640px;
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: 1px solid transparent;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}

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

.btn-secondary:hover {
  background: var(--color-bg-soft);
  border-color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Availability Bar ---------- */
.availability-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.availability-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.45); }
  50% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    /* background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); */
    color: white;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    font-weight: 700;
}

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 20, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

.nav-logo {
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  flex-shrink: 0;
}

.nav-logo:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: background var(--transition);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

.nav-link {
  padding: 0.45rem 0.7rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-primary-soft);
}

.nav-cta {
  margin-left: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  transition: background var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 3.5rem 4rem;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(59, 130, 246, 0.12), transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(34, 211, 238, 0.06), transparent),
    var(--color-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin-bottom: 0.75rem;
}

.hero-tags {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-image-wrap {
  position: relative;
  max-width: 360px;
  width: 100%;
}

.hero-image {
  width: 100%;
  aspect-ratio: 6 / 7;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-lg);
}

.hero-image-accent {
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  opacity: 0.35;
  z-index: -1;
  pointer-events: none;
}

/* ---------- Stats ---------- */
.stats {
  padding-block: 2rem;
  border-block: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.stat-card {
  text-align: center;
  padding: 1.25rem 0.75rem;
}

.stat-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-lead {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.about-content strong {
  color: var(--color-text);
}

.about-points {
  margin-top: 1.25rem;
}

.about-points li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.about-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  min-width: 72px;
}

.flow-num {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.flow-label {
  font-size: 0.8rem;
  font-weight: 600;
}

.flow-arrow {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

/* ---------- Skills ---------- */
.skill-category {
  margin-bottom: 2.5rem;
}

.skill-category-title {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.skill-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.skill-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface);
}

.skill-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skill-body {
  padding: 1.25rem 1.35rem 1.5rem;
}

.skill-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.skill-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.85rem;
}

.skill-list {
  margin-bottom: 1.15rem;
}

.skill-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.skill-list li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--color-text-dim);
}

/* ---------- Terminal ---------- */
.terminal-section {
  background: var(--color-bg-elevated);
}

.terminal {
  max-width: 640px;
  margin-inline: auto;
  background: #0d1117;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: #161b22;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot-red { background: #ff5f56; }
.terminal-dot-yellow { background: #ffbd2e; }
.terminal-dot-green { background: #27c93f; }

.terminal-title {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.terminal-body {
  padding: 1rem;
  min-height: 200px;
  max-height: 320px;
  overflow-y: auto;
}

.terminal-line {
  margin-bottom: 0.35rem;
  color: #c9d1d9;
  white-space: pre-wrap;
  word-break: break-word;
}

.term-cmd {
  color: var(--color-accent);
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.terminal-prompt {
  color: var(--color-success);
  flex-shrink: 0;
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #c9d1d9;
  caret-color: var(--color-accent);
  min-width: 0;
}

.terminal-error {
  color: #f85149;
}

.terminal-success {
  color: var(--color-success);
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.service-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.85rem;
  flex-grow: 1;
}

.service-deliverables {
  margin-bottom: 1.15rem;
}

.service-deliverables li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}

.service-deliverables li::before {
  content: "·";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--color-primary);
}

/* ---------- Featured Project ---------- */
.featured-project {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: start;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 3rem;
}

.featured-project-media {
  min-height: 280px;
  background: var(--color-surface);
}

.featured-project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.featured-project-content {
  padding: 2rem 2rem 2rem 0;
}

.project-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.project-role {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.project-case {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.case-block h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}

.case-block p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.tech-tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 999px;
}

.project-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
  margin-bottom: 1.5rem;
}

.project-features li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.project-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-size: 0.75rem;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-category-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.project-category-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.project-card-body {
  padding: 1.35rem;
}

.project-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.project-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.project-card-tag {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* ---------- Cloud Architecture ---------- */
.architecture-diagram {
  max-width: 520px;
  margin-inline: auto;
  text-align: center;
}

.arch-row {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.arch-node {
  padding: 0.65rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
}

.arch-node-entry {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.arch-connector {
  color: var(--color-text-dim);
  font-size: 1.1rem;
  margin-block: 0.35rem;
}

.arch-vpc {
  margin-top: 0.5rem;
  padding: 1.25rem 1rem;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: rgba(59, 130, 246, 0.04);
}

.arch-vpc-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.arch-note {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

/* ---------- Observability ---------- */
.obs-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  max-width: 360px;
  margin-inline: auto 0;
  margin-bottom: 2rem;
}

.obs-step {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
}

.obs-step-highlight {
  border-color: var(--color-success);
  background: var(--color-success-soft);
}

.obs-step-label {
  display: block;
  font-weight: 700;
  font-size: 1rem;
}

.obs-step-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.obs-arrow {
  color: var(--color-text-dim);
  font-size: 1rem;
}

.obs-details ul {
  max-width: 480px;
}

.obs-details li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.obs-details li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------- Docker ---------- */
.docker-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  margin-bottom: 1.25rem;
}

.docker-step {
  padding: 0.75rem 1.15rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
}

.docker-arrow {
  color: var(--color-text-dim);
}

.docker-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 1.25rem;
}

/* ---------- GitHub Actions ---------- */
.gha-visual {
  max-width: 480px;
  background: #0d1117;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1rem;
}

.gha-path {
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  background: #161b22;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.gha-code {
  padding: 1rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.55;
  color: #c9d1d9;
  overflow-x: auto;
  margin: 0;
}

.gha-code code {
  font-family: inherit;
}

.gha-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  max-width: 520px;
}

/* ---------- Experience Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid var(--color-border);
  max-width: 640px;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

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

.timeline-marker {
  position: absolute;
  left: -1.5rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  transform: translateX(-50%);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.timeline-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.timeline-list li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--color-text-dim);
}

/* ---------- Budget Calculator ---------- */
.budget-tool {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: start;
}

.budget-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
}

.budget-option {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  text-align: left;
  width: 100%;
}

.budget-option:hover {
  border-color: var(--color-border-strong);
}

.budget-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.budget-option-check {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border-strong);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.budget-option.selected .budget-option-check {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.budget-option-info {
  flex: 1;
  min-width: 0;
}

.budget-option-name {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.budget-option-price {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.budget-summary {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: calc(var(--header-height) + 1rem);
}

.budget-summary-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.budget-selected {
  min-height: 80px;
  margin-bottom: 1rem;
}

.budget-selected li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

.budget-selected .budget-empty {
  color: var(--color-text-dim);
  border: none;
  justify-content: flex-start;
}

.budget-remove {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
}

.budget-remove:hover {
  color: #f85149;
  background: rgba(248, 81, 73, 0.1);
}

.budget-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.budget-total strong {
  font-size: 1.35rem;
  color: var(--color-text);
  font-weight: 700;
}

.budget-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  margin-bottom: 1.25rem;
}

.budget-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Why ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.why-card {
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.why-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---------- Contact ---------- */
.contact-form {
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ---------- Final CTA ---------- */
.final-cta {
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(59, 130, 246, 0.1), transparent),
    var(--color-bg-elevated);
  border-block: 1px solid var(--color-border);
}

.final-cta-inner {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
}

.final-cta-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.final-cta-text {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.final-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 3rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.5fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.footer-role {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.footer-social {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer-social:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-align: center;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

  .hero-image-wrap {
    max-width: 280px;
  }

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

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

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

  .featured-project-content {
    padding: 1.5rem;
  }

  .budget-tool {
    grid-template-columns: 1fr;
  }

  .budget-summary {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: calc(var(--header-height) + 28px);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s ease;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 99;
  }

  .nav-menu.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: 0.85rem 1rem;
    font-size: 1rem;
  }

  .nav-cta {
    margin: 0.75rem 0 0;
    text-align: center;
    padding: 0.85rem 1rem;
  }
}

@media (max-width: 600px) {
  :root {
    --space-section: 3.5rem;
  }

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

  .stat-value {
    font-size: 1rem;
  }

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

  .hero-actions {
    flex-direction: column;
  }

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

  .docker-flow {
    flex-direction: column;
  }

  .docker-arrow {
    transform: rotate(0deg);
  }

  .about-flow {
    justify-content: center;
  }

  .flow-arrow {
    display: none;
  }
}

@media (min-width: 1200px) {
  .container {
    padding-inline: 1.5rem;
  }
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .availability-dot {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .skill-card:hover,
  .service-card:hover {
    transform: none;
  }
}

/* ---------- Professional Mobile Drawer ---------- */
@media (max-width: 899px) {
  html,
  body {
    overflow-x: hidden;
  }

  .site-header {
    position: relative;
    z-index: 1000;
  }

  .nav-menu {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: calc(100dvh - var(--header-height) - 28px);
    max-height: calc(100dvh - var(--header-height) - 28px);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: flex-start;
  }

  .nav-menu li,
  .nav-menu a {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .nav-menu .nav-link {
    display: flex;
    align-items: center;
    min-height: 52px;
    white-space: nowrap;
  }
}

/* ---------- Featured Project Media Refinement ---------- */
.featured-project-media {
  min-height: 100%;
  display: flex;
  align-items: stretch;
  justify-content: center;
  overflow: hidden;
}

.featured-project-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  object-position: center;
}

.project-card-actions {
  display: flex;
  align-items: center;
  margin-top: 1.1rem;
}

.project-view-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Cloud Architecture Presentation ---------- */
.cloud-architecture-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: center;
}

.cloud-architecture-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-md);
}

.cloud-architecture-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.cloud-architecture-media figcaption,
.observability-media figcaption {
  padding: 0.8rem 1rem;
  font-size: 0.78rem;
  color: var(--color-text-dim);
  border-top: 1px solid var(--color-border);
}

/* ---------- Observability Presentation ---------- */
.observability-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
}

.observability-media {
  order: 1;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-md);
}

.observability-media video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
}

.observability-layout .obs-flow {
  order: 2;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

@media (max-width: 899px) {
  .cloud-architecture-layout,
  .observability-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .cloud-architecture-media,
  .observability-media {
    width: 100%;
  }

  .architecture-diagram {
    max-width: none;
    width: 100%;
  }

  .observability-layout .obs-flow {
    max-width: none;
  }

  .featured-project-media img {
    min-height: 300px;
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 900px) {
  .featured-project {
    grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  }

  .featured-project-media {
    min-height: 100%;
  }

  .featured-project-media img {
    min-height: 100%;
    aspect-ratio: 4 / 3;
  }
}