/* Minimal, clean portfolio styles (Orbo-inspired) */

:root {
  /* Color system */
  --bg: #0b0c0f;
  --surface: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.65);
  --accent: #7c5cff;

  /* Layout */
  --container: 1100px;
  --gutter: 24px;
  --radius: 14px;

  /* Spacing (8px grid) */
  --s1: 8px;
  --s2: 16px;
  --s3: 24px;
  --s4: 32px;
  --s5: 48px;
  --s6: 72px;

  /* Type */
  --font: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

a:hover {
  color: rgba(255, 255, 255, 0.98);
}

:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 80%, white 20%);
  outline-offset: 3px;
  border-radius: 10px;
}

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

  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Utilities */
.container {
  width: min(var(--container), calc(100% - (var(--gutter) * 2)));
  margin: 0 auto;
}

.section {
  padding: var(--s6) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--s4);
}

.section-title {
  margin: 0 0 10px;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.section-desc {
  margin: 0;
  color: var(--muted);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  padding: 10px 14px;
  background: #11131a;
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 999;
}

.skip-link:focus {
  left: 12px;
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  padding: 16px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  color: var(--muted);
  font-weight: 500;
}

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

.nav-link-cta {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 12px;
  cursor: pointer;
}

.nav-toggle-label {
  font-size: 14px;
  color: var(--muted);
}

.nav-toggle-icon {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  margin-left: 10px;
}

/* Hero */
.hero {
  padding: calc(var(--s6) + 18px) 0 var(--s6);
}

.hero-inner {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 var(--s2);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-title {
  margin: 0 0 var(--s2);
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero-subtitle {
  margin: 0 0 var(--s4);
  color: var(--muted);
  font-size: clamp(16px, 2vw, 18px);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #0b0c0f;
  font-weight: 600;
  transition: transform 150ms ease, filter 150ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
}

.btn:active {
  transform: translateY(0);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
  color: var(--text);
}

/* Grid / cards */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.card-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.card-desc {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.tag {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  font-size: 12px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.prose p {
  margin: 0;
  color: var(--muted);
  max-width: 80ch;
}

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

/* Footer */
.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: center;
}

.footer-text {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    right: calc((100% - min(var(--container), calc(100% - (var(--gutter) * 2)))) / 2);
    top: 64px;
    background: rgba(17, 19, 26, 0.98);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    flex-direction: column;
    align-items: flex-start;
    min-width: 220px;
  }

  .nav-links.is-open {
    display: flex;
  }
}