/* ============================================
   Nominal Industries — Dark Theme
   "Software, built by hand."

   Teal accent: #3FBAA8 (from DeepDive)
   ============================================ */

:root {
  /* Core palette */
  --bg-deep: #0a0e13;
  --bg-surface: #111820;
  --bg-raised: #1a2230;
  --bg-hover: #222e3e;

  --text-primary: #e8edf3;
  --text-secondary: #8a96a8;
  --text-muted: #5a6577;

  --teal: #3FBAA8;
  --teal-dim: #2d8a7d;
  --teal-glow: rgba(63, 186, 168, 0.15);
  --teal-glow-strong: rgba(63, 186, 168, 0.3);

  --border: #1e2a38;
  --border-light: #2a3848;

  /* Typography */
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-width: 1100px;
  --nav-height: 64px;
}

/* ---- Reset & Base ---- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--teal);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #5fd4be;
}

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

/* ---- Navigation ---- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 19, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
}

.nav-logo strong,
.footer-brand strong {
  font-weight: 700;
  color: var(--text-primary);
}

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

.nav-logo-mark {
  color: var(--teal);
  font-weight: 700;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--space-lg);
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: lowercase;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--teal);
}

/* ---- Hero ---- */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    ellipse at 50% 50%,
    var(--teal-glow) 0%,
    transparent 50%
  );
  animation: hero-pulse 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes hero-pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

.hero-content {
  max-width: 750px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-pretitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.hero h1 .accent {
  color: var(--teal);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--teal);
  border: 1px solid var(--teal-dim);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  transition: all 0.25s ease;
  background: transparent;
}

.hero-cta:hover {
  background: var(--teal-glow);
  border-color: var(--teal);
  color: var(--teal);
  box-shadow: 0 0 20px var(--teal-glow);
}

/* ---- Section Shared ---- */

.section {
  padding: var(--space-3xl) var(--space-lg);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  line-height: 1.2;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

/* ---- Projects Grid ---- */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--space-xl) var(--space-lg);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover {
  border-color: var(--border-light);
  background: var(--bg-raised);
  transform: translateY(-2px);
}

.project-card:hover::before {
  opacity: 1;
}

.project-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
  display: block;
}

.project-icon-img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: var(--space-md);
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.project-name {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal);
  background: var(--teal-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.project-card-link {
  text-decoration: none;
  cursor: pointer;
  display: block;
  color: var(--text-primary);
}

.project-card-link .project-name {
  color: var(--text-primary);
}

.project-card-link .project-desc {
  color: var(--text-secondary);
}

.card-cta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  margin-top: var(--space-md);
  transition: color 0.2s ease;
}

.project-card-link:hover .card-cta {
  color: #5fd4be;
}

/* ---- About / Philosophy ---- */

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

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

.about-values {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.value-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md) var(--space-lg);
}

.value-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--teal);
  margin-bottom: var(--space-xs);
  display: block;
}

.value-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---- Stack Section ---- */

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.stack-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md);
  text-align: center;
  transition: border-color 0.2s ease;
}

.stack-item:hover {
  border-color: var(--border-light);
}

.stack-item-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.stack-item-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---- Contact ---- */

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

.contact-section .section-description {
  margin-left: auto;
  margin-right: auto;
}

.contact-links {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.25s ease;
}

.contact-link:hover {
  color: var(--teal);
  border-color: var(--teal-dim);
  background: var(--teal-glow);
}

/* ---- Contact Form ---- */

.contact-form {
  max-width: 560px;
  margin: var(--space-xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--teal);
  letter-spacing: 0.04em;
}

.form-input {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color 0.2s ease;
}

.form-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.form-input:focus {
  outline: none;
  border-color: var(--teal-dim);
  box-shadow: 0 0 0 3px rgba(63, 186, 168, 0.1);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-select option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

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

.form-submit {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--teal);
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  align-self: flex-start;
}

.form-submit:hover {
  background: #5fd4be;
  transform: translateY(-1px);
}

/* ---- Footer ---- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) var(--space-lg);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--teal);
}

.footer-legal {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.footer-legal a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: var(--text-secondary);
}

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

/* ---- App Sidebar Profile ---- */

.sidebar-profile {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.app-profile-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  flex-shrink: 0;
  filter: drop-shadow(0 3px 16px rgba(63, 186, 168, 0.25));
}

.app-profile-emoji {
  font-size: 2.2rem;
  line-height: 1;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.app-profile-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.app-profile-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.status-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--tier-color, var(--teal));
  background: color-mix(in srgb, var(--tier-color, var(--teal)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--tier-color, var(--teal)) 30%, transparent);
  padding: 0.2em 0.7em;
  border-radius: 999px;
  width: fit-content;
}

/* ---- Projects Page / Tier System ---- */

.hero-short {
  min-height: auto;
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
}

.tier-header {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg) var(--space-xl);
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--tier-color, var(--teal));
}

.tier-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: var(--tier-color, var(--teal));
}

.tier-usable {
  --tier-color: #3FBAA8;
}

.tier-noodling {
  --tier-color: #E8A84C;
}

.tier-has-pixels {
  --tier-color: #4DACF0;
}

.tier-fever-dream {
  --tier-color: #C77DFF;
}

.tier-header:has(.tier-has-pixels) {
  border-left-color: #4DACF0;
  background: linear-gradient(135deg, rgba(77, 172, 240, 0.06) 0%, var(--bg-surface) 60%);
}

.tier-header:has(.tier-usable) {
  border-left-color: #3FBAA8;
  background: linear-gradient(135deg, rgba(63, 186, 168, 0.06) 0%, var(--bg-surface) 60%);
}

.tier-header:has(.tier-noodling) {
  border-left-color: #E8A84C;
  background: linear-gradient(135deg, rgba(232, 168, 76, 0.06) 0%, var(--bg-surface) 60%);
}

.tier-header:has(.tier-fever-dream) {
  border-left-color: #C77DFF;
  background: linear-gradient(135deg, rgba(199, 125, 255, 0.06) 0%, var(--bg-surface) 60%);
}

.tier-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 700px;
}

/* ---- Screenshot ---- */

.screenshot-inline {
  margin-bottom: var(--space-xl);
}

.screenshot-inline img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- App Detail Page ---- */

/* hero-icon used on homepage cards only now */
.hero-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-md);
}

.app-detail {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-xl);
  align-items: start;
}

.app-detail-content h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.app-detail-content h2:first-of-type {
  margin-top: 0;
}


.app-detail-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.app-detail-content strong {
  color: var(--text-primary);
}

.sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-md);
}

.sidebar-tags {
  margin-top: var(--space-sm);
}

.sidebar-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: var(--space-sm);
}

.sidebar-link {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  margin-top: var(--space-sm);
}

.sidebar-link:first-of-type {
  margin-top: var(--space-sm);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }

  .app-detail {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: var(--space-md);
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .hero {
    padding: var(--space-2xl) var(--space-md);
  }

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

@media (max-width: 480px) {
  .nav-links {
    display: none;
  }

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

/* ---- Utility ---- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}