/* ==========================================================================
   ONEBIGGO — OFFICIAL STUDIO STYLESHEET (V1.0)
   Aesthetic: Midnight Navy, Blue-Teal Accents, Clean Typography, Local-First
   ========================================================================== */

:root {
  --bg-deep: #060a12;
  --bg-surface: #0b1220;
  --bg-card: rgba(16, 25, 43, 0.72);
  --bg-card-hover: rgba(22, 34, 58, 0.9);
  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-accent: rgba(56, 189, 248, 0.38);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-blue: #38bdf8;
  --accent-teal: #2dd4bf;
  --accent-electric: #0ea5e9;
  --badge-project-bg: rgba(45, 212, 191, 0.12);
  --badge-project-text: #2dd4bf;
  --badge-concept-bg: rgba(56, 189, 248, 0.12);
  --badge-concept-text: #38bdf8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  --max-width: 1200px;
  --transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(14, 165, 233, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(45, 212, 191, 0.06) 0%, transparent 40%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Hierarchy */
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
}

h1, .h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

h2, .h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h3, .h3 {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.65rem;
}

p.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 2rem;
}

/* Buttons */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.65rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-electric), var(--accent-teal));
  color: #040811;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover, .btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(45, 212, 191, 0.38);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.7);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  border-color: var(--accent-blue);
  background: rgba(30, 41, 59, 0.85);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 10, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-teal);
  box-shadow: 0 0 10px var(--accent-teal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.35rem 0;
  position: relative;
}

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

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-blue);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
}

/* Sections */
section {
  padding: 5.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-section {
  padding: 6.5rem 0 5.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

/* Idea -> Build -> Launch Visual Diagram */
.journey-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 2rem;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.diagram-node {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: rgba(6, 10, 18, 0.75);
  margin-bottom: 1rem;
}

.diagram-node:last-child {
  margin-bottom: 0;
  border-color: var(--border-accent);
}

.node-step {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent-teal);
  letter-spacing: 0.1em;
}

.node-title {
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Core Services Strip */
.pillar-strip {
  background: var(--bg-surface);
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.pillar-list {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.pillar-list span.sep {
  color: var(--accent-blue);
}

/* Cards & Grids */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.card-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: block;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.card-link {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-teal);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Badges for PROJECT vs CONCEPT */
.badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
}

.badge-project {
  background: var(--badge-project-bg);
  color: var(--badge-project-text);
  border: 1px solid rgba(45, 212, 191, 0.3);
}

.badge-concept {
  background: var(--badge-concept-bg);
  color: var(--badge-concept-text);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.category-tag {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 600;
}

/* Process / Timeline Steps */
.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.25rem;
  margin: 2.5rem 0;
}

.timeline-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 1.5rem;
}

/* Tag Pills List */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 1.5rem;
}

.tag-pill {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
}

/* Filter Bar (Work Page) */
.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.5rem 1.1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.filter-btn.active, .filter-btn:hover {
  border-color: var(--accent-blue);
  color: var(--text-main);
  background: rgba(56, 189, 248, 0.1);
}

/* Contact Form */
.form-card {
  max-width: 680px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 2.5rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group.full {
  grid-column: 1 / -1;
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 0.45rem;
  color: var(--text-main);
}

input, select, textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(6, 10, 18, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.form-status {
  margin-top: 1.25rem;
  padding: 1rem;
  border-radius: 6px;
  display: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-status.success {
  display: block;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.4);
  color: var(--accent-teal);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--bg-surface);
  padding: 4rem 0 2.5rem;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .menu-toggle {
    display: inline-block;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    align-items: flex-start;
  }
  .nav-links.open {
    display: flex;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}

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