/* =============================================
   NORTHBOUND HOUSE — Main Site
   ============================================= */

/* --- Variables (Light Mode) --- */
:root {
  --primary:    #2B72D7;
  --primary-dk: #1a5bbf;
  --secondary:  #4F758B;
  --neutral:    #ADB3B8;
  --accent-1:   #C4D600;
  --accent-2:   #FF431B;

  --text:       #111827;
  --text-muted: #4b5563;
  --border:     #e5e7eb;
  --bg:         #ffffff;
  --bg-soft:    #f8f9fb;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --max-w: 1100px;
  --pad:   1.5rem;

  --radius:    12px;
  --radius-sm: 6px;

  --shadow-sm: 0 1px 4px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.10);

  --ease: 0.2s ease;
}

/* --- Variables (Dark Mode) --- */
@media (prefers-color-scheme: dark) {
  :root {
    --primary:    #5B9BF8;
    --primary-dk: #3a7cd9;
    --secondary:  #6B9CB3;
    --neutral:    #6b7280;
    --accent-1:   #D4E600;
    --accent-2:   #FF6B47;

    --text:       #f3f4f6;
    --text-muted: #d1d5db;
    --border:     #374151;
    --bg:         #111827;
    --bg-soft:    #1f2937;

    --shadow-sm: 0 1px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.5);
  }
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img   { max-width: 100%; display: block; }
a     { color: inherit; text-decoration: none; }
ul    { list-style: none; }
button { font-family: var(--font); }

/* Scroll margin for sticky header */
section[id] { scroll-margin-top: 80px; }

/* --- Container --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* --- Section header --- */
.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 3rem;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}
.section-header p { font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; }
.section-header .section-sub { margin-top: 0.5rem; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--ease);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  background: var(--primary-dk);
  border-color: var(--primary-dk);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 20px rgba(43,114,215,0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--primary);
}
.btn-ghost:hover { color: var(--primary-dk); text-decoration: underline; }

/* =============================================
   HEADER
   ============================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
  .header {
    background: rgba(17,24,39,0.96);
  }
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.logo { display: flex; align-items: baseline; gap: 0.3rem; }
.logo-northbound {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.025em;
}
.logo-house {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--accent-1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Nav links */
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--ease);
}
.nav-links a:hover { color: var(--primary); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--ease);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 0 5.5rem;
  background: var(--bg-soft);
  background-image: url('https://images.unsplash.com/photo-1506905925346-21bda4d32df4?auto=format&fit=crop&w=1800&q=80');
  background-size: cover;
  background-position: center 40%;
}

/* Ensure orb canvas sits above overlays but behind content */
.hero > canvas {
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  pointer-events: none; /* Let mouse events pass through to canvas */
}

/* Re-enable pointer events for interactive elements */
.hero .container a,
.hero .container button {
  pointer-events: auto;
}

/* Make other sections work with swirl backgrounds */
.ventures,
.process {
  position: relative;
}

.ventures .container,
.process .container {
  position: relative;
  z-index: 2;
}

/* Mountain image overlay - sits over image, under gradient and orbs */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-soft);
  opacity: 0.85;
  z-index: 0;
  pointer-events: none;
}

/* Static subtle gradient background - no animation jumping */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(43, 114, 215, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(196, 214, 0, 0.10) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

@media (prefers-color-scheme: dark) {
  .hero::after {
    opacity: 0.75;
  }

  .hero::before {
    background:
      radial-gradient(circle at 20% 50%, rgba(91, 155, 248, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(212, 230, 0, 0.08) 0%, transparent 50%);
  }
}
.hero .container { position: relative; z-index: 1; }
.hero-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.hero-orb--1 {
  width: 520px;
  height: 520px;
  background: var(--primary);
  opacity: 0.08;
  top: -160px;
  right: -60px;
}
.hero-orb--2 {
  width: 280px;
  height: 280px;
  background: var(--accent-1);
  opacity: 0.10;
  bottom: -60px;
  right: 280px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 1.25rem;
}
.hero-headline {
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-bottom: 1.5rem;
}
.hero-headline .accent {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.hero-headline .accent::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-1);
  border-radius: 2px;
  opacity: 0.8;
}

/* Removed accentPulse animation - static underline now */
@keyframes accentPulse_REMOVED {
  0%, 100% {
    opacity: 0.6;
    transform: scaleX(1);
  }
  50% {
    opacity: 1;
    transform: scaleX(1.05);
  }
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 560px;
}
.hero-ctas { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }

/* =============================================
   VENTURES
   ============================================= */
.ventures {
  padding: 5.5rem 0;
  background: var(--bg-soft);
  position: relative;
}

.ventures::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
  pointer-events: none;
}

@media (prefers-color-scheme: dark) {
  .ventures::before {
    opacity: 0.15;
  }
}
.ventures-intro {
  text-align: center;
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: -1.5rem auto 3rem;
  line-height: 1.7;
}

.venture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* Staggered animation for cards */
.venture-card {
  animation: fadeInUp 0.6s ease-out backwards;
}

.venture-card:nth-child(1) { animation-delay: 0.1s; }
.venture-card:nth-child(2) { animation-delay: 0.2s; }
.venture-card:nth-child(3) { animation-delay: 0.3s; }
.venture-card:nth-child(4) { animation-delay: 0.4s; }
.venture-card:nth-child(5) { animation-delay: 0.5s; }
.venture-card:nth-child(6) { animation-delay: 0.6s; }
.venture-card:nth-child(7) { animation-delay: 0.7s; }
.venture-card:nth-child(8) { animation-delay: 0.8s; }
.venture-card:nth-child(9) { animation-delay: 0.9s; }
.venture-card:nth-child(10) { animation-delay: 1.0s; }

.venture-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.venture-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.venture-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(43, 114, 215, 0.3);
}

.venture-card:hover::after {
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  .venture-card {
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  }

  .venture-card::after {
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  }
}

.venture-card__bar { height: 5px; flex-shrink: 0; }

.venture-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.5rem;
}

.venture-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.venture-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}
.venture-icon--blue   { background: #dbeafe; }
.venture-icon--slate  { background: #e2eaf0; }
.venture-icon--dark   { background: #e0e8f0; }
.venture-icon--navy   { background: #dde3ed; }
.venture-icon--purple { background: #ede9fe; }
.venture-icon--red    { background: #ffe4ea; }
.venture-icon--teal   { background: #dff0f5; }

.venture-card__badges { display: flex; flex-wrap: wrap; gap: 0.35rem; justify-content: flex-end; }

.badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
/* Status badges */
.badge--active   { background: #dcfce7; color: #166534; }
.badge--building { background: #fef9c3; color: #854d0e; }
.badge--concept  { background: #f1f5f9; color: #475569; }
/* Platform badge */
.badge--platform { background: #dbeafe; color: #1e40af; }

.venture-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.venture-tagline {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--primary);
  font-style: italic;
}
.venture-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}
.venture-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--ease);
}
.venture-link:hover { color: var(--primary-dk); }
.venture-link--soon {
  color: var(--text-muted);
  cursor: default;
  font-style: italic;
  opacity: 0.85;
}

/* Callout card */
.venture-card--callout {
  background: linear-gradient(135deg, #f0f7ff 0%, #edf4fd 100%);
  border: 1.5px dashed #bfdbfe;
}
.venture-card__body--callout {
  align-items: flex-start;
  justify-content: center;
}
.callout-icon { font-size: 1.75rem; margin-bottom: 0.25rem; }
.callout-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

/* =============================================
   PHILOSOPHY
   ============================================= */
.philosophy {
  padding: 5.5rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dk) 100%);
  position: relative;
  overflow: hidden;
}

.philosophy::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.05) 0%, transparent 50%);
  pointer-events: none;
}
.philosophy-content {
  max-width: 660px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.philosophy-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: 1.5rem;
}
.philosophy-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.82);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.philosophy-content p:last-child { margin-bottom: 0; }

/* =============================================
   PROCESS
   ============================================= */
.process {
  padding: 5.5rem 0;
  background: var(--bg);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}
.process-step {
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  text-align: center;
  transition: background var(--ease), border-color var(--ease);
}
.process-step:hover {
  background: #eef4ff;
  border-color: #bfdbfe;
}
.process-number {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--accent-1);
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
}
.process-step h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.process-step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =============================================
   MISSION
   ============================================= */
.mission {
  padding: 5.5rem 0;
  background: #111827;
}
.mission-content {
  max-width: 660px;
  margin: 0 auto;
  text-align: center;
}
.mission-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: 1.5rem;
}
.mission-content p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.mission-statement {
  font-size: 1.3rem !important;
  font-weight: 700 !important;
  color: var(--accent-1) !important;
  margin-top: 1rem;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  padding: 5.5rem 0;
  background: var(--bg);
}
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 1rem;
}
.about-story h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.about-story p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.about-story p:last-child { margin-bottom: 0; }

.team-grid { display: flex; flex-direction: column; gap: 1.25rem; }
.team-member {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 1.6rem 1.8rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.team-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.team-info h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.3rem; }
.team-info p  { font-size: 0.92rem; color: var(--text-muted); }
.team-aside {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--ease);
}
.team-aside:hover { color: var(--primary-dk); }

/* =============================================
   CONTACT
   ============================================= */
.contact {
  padding: 5.5rem 0;
  background: var(--bg-soft);
}
.contact-form {
  max-width: 620px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.45rem; }
.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}
.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--ease), box-shadow var(--ease);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--neutral); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43,114,215,0.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* Contact CTA */
.contact-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.contact-note {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #111827;
  color: #fff;
  padding: 3rem 0 2rem;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 1.5rem;
}
.footer-brand .logo-northbound { color: #fff; }
.footer-tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  font-style: italic;
  margin-top: 0.4rem;
}
.footer-motto {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-1);
  letter-spacing: -0.01em;
  align-self: center;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.35); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--ease);
}
.footer-links a:hover { color: #fff; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 960px) {
  .venture-grid  { grid-template-columns: repeat(2, 1fr); }
  .process-grid  { grid-template-columns: repeat(2, 1fr); }
  .about-content { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 640px) {
  /* Mobile nav */
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 1.5rem var(--pad);
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.is-open { display: flex; }
  .nav-toggle { display: flex; }

  .hero { padding: 4rem 0 3.5rem; }
  .hero-decoration { display: none; }

  .venture-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .footer-top    { flex-direction: column; gap: 1.25rem; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .footer-links  { justify-content: center; }
}