:root {
  --color-background: #020617;
  --color-surface: #03091f;
  --color-surface-alt: #060e2d;
  --color-border: rgba(148, 163, 184, 0.2);
  --color-text-primary: #e5e7eb;
  --color-text-secondary: #94a3b8;
  --color-accent: #6366f1;
  --color-accent-soft: rgba(99, 102, 241, 0.12);
  --color-success: #22c55e;
  --shadow-soft: 0 10px 40px rgba(15, 23, 42, 0.4);
  --shadow-card: 0 12px 32px rgba(2, 6, 23, 0.45);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  --max-width: 1120px;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition-base: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background: radial-gradient(120% 120% at 50% 0%, rgba(99, 102, 241, 0.18), transparent),
    var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.4) 0%, transparent 35%);
  z-index: -1;
}

.container {
  width: min(100% - 2 * var(--spacing-md), var(--max-width));
  margin: 0 auto;
}

.container.narrow {
  width: min(100% - 2 * var(--spacing-md), 960px);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-heading {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: var(--spacing-sm);
}

.section-heading p {
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

.section.projects .section-header {
  width: min(100% - 2 * var(--spacing-md), var(--max-width));
  margin: 0 auto var(--spacing-xl);
  text-align: center;
}

.section.projects .section-header p {
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0.5rem auto 0;
}

.projects-grid {
  width: min(100% - 2 * var(--spacing-md), var(--max-width));
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-lg);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base),
    box-shadow var(--transition-base);
  padding: var(--spacing-sm) 0;
}

.site-header.scrolled {
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.4);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.brand {
  display: flex;
  gap: 0.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand .divider {
  opacity: 0.5;
}

.main-nav {
  display: flex;
  align-items: center;
  position: relative;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  margin: 0;
  padding: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  padding: 0.4rem 0;
  position: relative;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

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

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

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  margin: 6px 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--spacing-xxl) + 4rem);
  padding-bottom: var(--spacing-xxl);
}

.hero-grid {
  display: grid;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 4vw, 3.4rem);
  line-height: 1.15;
  margin-bottom: var(--spacing-md);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.hero-text {
  color: var(--color-text-secondary);
  max-width: 520px;
  margin-bottom: var(--spacing-lg);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base),
    color var(--transition-base), border-color var(--transition-base);
}

.btn.primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 16px 32px rgba(99, 102, 241, 0.35);
  border: 1px solid transparent;
}

.btn.primary:hover,
.btn.primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.4);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base),
    color var(--transition-base), border-color var(--transition-base);
  background: var(--color-accent);
  color: #fff;
  border: 1px solid transparent;
  box-shadow: 0 16px 32px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.4);
}

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

.btn.outline:hover,
.btn.outline:focus-visible {
  background: var(--color-accent-soft);
  transform: translateY(-2px);
}

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

.dashboard-card {
  background: linear-gradient(160deg, var(--color-surface) 0%, var(--color-surface-alt) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  position: relative;
  min-width: min(100%, 340px);
  overflow: hidden;
}

.dashboard-card::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -120px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent 70%);
  filter: blur(10px);
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.6);
}

.dashboard-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.stat-widget {
  padding: var(--spacing-md);
  background: rgba(15, 23, 42, 0.4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  position: relative;
}

.widget-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-xs);
}

.widget-value {
  font-size: 1.8rem;
  font-weight: 600;
}

.widget-value.time {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.widget-value .unit {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.widget-bar {
  height: 6px;
  background: rgba(148, 163, 184, 0.15);
  border-radius: 999px;
  overflow: hidden;
  margin-top: var(--spacing-sm);
}

.widget-bar .fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.2), var(--color-accent));
}

.time-segments {
  display: flex;
  gap: 0.35rem;
  margin-top: var(--spacing-sm);
}

.time-segments span {
  flex: 1;
  height: 22px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.18);
}

 .card-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.card {
  background: rgba(2, 6, 23, 0.75);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base), background-color var(--transition-base);
  position: relative;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid transparent;
  transition: border-color var(--transition-base);
  pointer-events: none;
}

.service-card {
  padding-top: calc(var(--spacing-lg) + 0.5rem);
}

.service-card .card-accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.2), var(--color-accent));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card:hover,
.card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(2, 6, 23, 0.45);
  border-color: rgba(99, 102, 241, 0.35);
  background-color: rgba(15, 23, 42, 0.85);
}

.project-card {
  background: rgba(2, 6, 23, 0.75);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base), background-color var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-soft);
}

.project-card:hover,
.project-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(2, 6, 23, 0.45);
  border-color: rgba(99, 102, 241, 0.35);
  background-color: rgba(15, 23, 42, 0.85);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--spacing-sm);
}

.project-tags .tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--color-text-primary);
}

.about-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.about-bio p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

.about-details {
  display: grid;
  gap: var(--spacing-lg);
}

.about-details h3 {
  margin: 0 0 var(--spacing-sm);
  font-size: 1.1rem;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.badge-list li {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.18);
  color: var(--color-text-primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-size: 0.9rem;
}

.principles-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  color: var(--color-text-secondary);
}

.contact-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.contact-form {
  background: rgba(2, 6, 23, 0.75);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base), background-color var(--transition-base);
}

.contact-form:hover,
.contact-form:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(2, 6, 23, 0.45);
  border-color: rgba(99, 102, 241, 0.35);
  background-color: rgba(15, 23, 42, 0.85);
}

.contact-form label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.contact-form input,
.contact-form textarea {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.contact-form textarea {
  resize: vertical;
  min-height: 160px;
}

.contact-details h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

.contact-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.contact-links a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
}

.contact-links a:hover,
.contact-links a:focus-visible {
  color: var(--color-accent);
}

.contact-icon {
  margin-right: 0.6rem;
  color: var(--color-accent);
}

.site-footer {
  padding: var(--spacing-lg) 0;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.background-glow {
  position: fixed;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  filter: blur(160px);
  opacity: 0.45;
  z-index: -2;
}

.glow-one {
  top: 10%;
  left: -120px;
  background: rgba(99, 102, 241, 0.6);
}

.glow-two {
  bottom: -160px;
  right: -100px;
  background: rgba(34, 197, 94, 0.25);
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (min-width: 560px) {
  .dashboard-card {
    min-width: 360px;
  }
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .hero-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid.services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid {
    grid-template-columns: 1.2fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
}

@media (max-width: 767px) {
  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(2, 6, 23, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: var(--shadow-soft);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .main-nav.open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
  }

  .main-nav.open .nav-toggle span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .main-nav.open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .main-nav.open .nav-toggle span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

@media (min-width: 1024px) {
  .card-grid.services-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 599px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}