/* =========================================================
   Proxessor.ai — Main Stylesheet
   Palette: Engineered navy, signal-green accent, cool paper base
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Colors */
  --color-navy:      #0A0F1A;
  --color-navy-deep: #05080D;
  --color-navy-light:#131B2C;
  --color-highlight:    #047857;
  --color-highlight-lt: #34D399;
  --color-cream:     #F1F3F6;
  --color-white:     #FFFFFF;
  --color-gray:      #576273;
  --color-gray-lt:   #9BA6B8;
  --color-gray-pale: #C7CFDA;
  --color-steel:     #4A6FA5;
  --color-gold:      #CA8A04;
  --color-amber:     #C2410C;

  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

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

  /* Misc */
  --radius:     6px;
  --max-width:  1120px;
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 64px; /* space for the fixed footer */
  font-family: var(--font-body);
  background: var(--color-cream);
  color: var(--color-navy);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

main { flex: 1; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ---------- Utility ---------- */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Monospace eyebrow label */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-highlight);
  margin-bottom: var(--space-md);
}

/* ---------- Navigation ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(52, 211, 153, 0.12);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-mark {
  height: 22px;
  width: auto;
  display: block;
}

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

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-gray-lt);
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

.nav-links a::before,
.nav-links a::after {
  color: transparent;
  transition: color var(--transition);
}

.nav-links a::before {
  content: '[';
  margin-right: 0.15em;
}

.nav-links a::after {
  content: ']';
  margin-left: 0.15em;
}

.nav-links a.active::before,
.nav-links a.active::after {
  color: var(--color-highlight-lt);
}

/* ---------- Hero Sections ---------- */
.hero {
  min-height: 30vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--color-navy);
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

/* Circuit-board pattern — signature texture (hero-patterns.com, Steve Schoger, CC BY 4.0) */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/patterns/circuit-board.svg');
  background-size: 140px 140px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding: var(--space-xl) var(--space-md);
  animation: hero-rise 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes hero-rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero h1 em {
  font-style: normal;
  color: var(--color-highlight-lt);
}

.hero .eyebrow {
  color: var(--color-highlight-lt);
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-gray-lt);
  max-width: 520px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.75rem 2rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

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

.btn-primary {
  background: var(--color-highlight);
  color: var(--color-white);
}

.btn-primary:hover {
  background: #036347;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-cream);
  border: 1.5px solid rgba(241,243,246,0.25);
}

.btn-outline:hover {
  border-color: var(--color-highlight-lt);
  color: var(--color-highlight-lt);
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding: var(--space-2xl) 0;
  overflow: hidden;
}

.section > .container {
  position: relative;
  z-index: 1;
}

.section-dark {
  background: #1E2A45;
  color: var(--color-gray-pale);
}

.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/patterns/overlapping-circles.svg');
  background-size: 80px 80px;
  opacity: 0.5;
  pointer-events: none;
}

.section-dark .eyebrow {
  color: var(--color-highlight-lt);
}

.section-cream {
  background: var(--color-cream);
}

.section-cream::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/patterns/topography.svg');
  background-size: 300px 300px;
  pointer-events: none;
}

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

.section-heading h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.section-heading p {
  font-size: 1rem;
  color: var(--color-gray);
  max-width: 500px;
  margin: 0 auto;
}

/* ---------- Product Cards ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: var(--space-xl);
  box-shadow: 0 1px 3px rgba(10,15,26,0.05), 0 8px 24px rgba(10,15,26,0.07);
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 3px solid var(--color-highlight);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 2px 8px rgba(10,15,26,0.07), 0 16px 40px rgba(10,15,26,0.12);
}

.product-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  border-radius: var(--radius);
  margin-bottom: var(--space-lg);
}

.product-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-highlight-lt);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.product-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.product-card p {
  color: var(--color-gray);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(74,111,165,0.12);
  color: var(--color-steel);
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
}

.badge-testing {
  background: rgba(4,120,87,0.12);
  color: var(--color-highlight);
}

.badge-launched {
  background: var(--color-highlight);
  color: var(--color-white);
}

/* ---------- Feature List (inside cards or sections) ---------- */
.feature-list {
  list-style: none;
  margin-top: var(--space-md);
}

.feature-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: var(--space-xs);
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--color-highlight);
  border-radius: 50%;
}

/* ---------- Contact Form ---------- */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.contact-info p {
  color: var(--color-gray);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-gray);
}

.contact-detail svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-highlight);
  fill: none;
  stroke-width: 1.5;
  flex-shrink: 0;
}

.contact-form {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1.5px solid #DEE2E8;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-navy);
  transition: border-color var(--transition);
  background: var(--color-cream);
}

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

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

/* ---------- Scroll Hint ---------- */
.scroll-sentinel {
  height: 1px;
}

.scroll-hint {
  position: fixed;
  left: 50%;
  bottom: 80px;
  z-index: 95;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid rgba(52,211,153,0.28);
  background: rgba(10,15,26,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--color-highlight-lt);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), border-color var(--transition);
}

.scroll-hint.is-visible {
  opacity: 1;
  pointer-events: auto;
  animation: scroll-hint-bob 1.8s ease-in-out infinite;
}

.scroll-hint:hover {
  border-color: rgba(52,211,153,0.6);
}

.scroll-hint svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@keyframes scroll-hint-bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

@media (max-width: 768px) {
  .scroll-hint {
    bottom: 76px;
    width: 36px;
    height: 36px;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  overflow: hidden;
  background: var(--color-navy-deep);
  color: var(--color-gray-lt);
  text-align: center;
  padding: var(--space-lg) 0;
  font-size: 0.8125rem;
  border-top: 1px solid rgba(52,211,153,0.10);
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

.site-footer a {
  color: var(--color-highlight-lt);
}

.site-footer a:hover {
  color: var(--color-white);
}

/* ---------- Projects page hero images ---------- */
.product-hero-image {
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- Project detail pages ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-highlight);
  margin-bottom: var(--space-lg);
}

.back-link:hover {
  color: var(--color-navy);
}

.placeholder-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.placeholder-shot {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  background:
    url('../images/patterns/circuit-board.svg'),
    linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  background-size: 90px 90px, 100% 100%;
  border: 1px dashed rgba(52,211,153,0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  color: var(--color-gray-lt);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.app-screenshot {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
}

.app-screenshot.is-zoomable {
  cursor: zoom-in;
  transition: opacity var(--transition);
}

.app-screenshot.is-zoomable:hover {
  opacity: 0.85;
}

/* ---------- Lightbox ---------- */
body.lightbox-locked {
  overflow: hidden;
}

.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  align-items: center;
  justify-content: center;
  background: rgba(5,8,13,0.92);
  padding: var(--space-lg);
}

.lightbox-overlay.is-open {
  display: flex;
}

.lightbox-image {
  max-width: min(90vw, 1200px);
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.lightbox-close,
.lightbox-arrow {
  position: fixed;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-white);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
}

.lightbox-close:hover,
.lightbox-arrow:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.4);
}

.lightbox-close {
  top: var(--space-lg);
  right: var(--space-lg);
}

.lightbox-arrow {
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
}

.lightbox-prev {
  left: var(--space-lg);
}

.lightbox-next {
  right: var(--space-lg);
}

@media (max-width: 768px) {
  .lightbox-close,
  .lightbox-arrow {
    width: 36px;
    height: 36px;
    font-size: 1.25rem;
  }

  .lightbox-prev {
    left: var(--space-sm);
  }

  .lightbox-next {
    right: var(--space-sm);
  }

  .lightbox-close {
    top: var(--space-sm);
    right: var(--space-sm);
  }
}

.project-detail-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .contact-wrapper {
    grid-template-columns: 1fr;
  }

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

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

  .hero-buttons { flex-direction: column; align-items: center; }

  /* Stack project rows vertically — image on top, text below */
  .projects-page [style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: var(--space-lg) !important;
  }

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

  .placeholder-gallery {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---------- Focus visibility ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
}