:root {
  --bg-canvas: #1c1f24;
  --bg-surface: #272c33;
  --bg-surface-hover: #313740;
  --bg-surface-alt: #16191d;
  --text-primary: #e5e7eb;
  --text-muted: #9ca3af;
  --accent-primary: #14b8a6;
  --accent-secondary: #0d9488;
  --border-subtle: #374151;
  --border-accent: rgba(20, 184, 166, 0.4);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 12px 32px -4px rgba(0, 0, 0, 0.45);
  --radius-card: 20px;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Roboto", "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  font-family: var(--font-body);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.65;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-canvas);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-wrap: anywhere;
  hyphens: auto;
  border: 1px solid var(--border-subtle);
  margin: 12px;
}

@media (min-width: 1024px) {
  body { margin: 24px; }
}

/* Bulletin Bar */
.bulletin-bar {
  background-color: var(--bg-surface-alt);
  color: var(--accent-primary);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Header & Nav */
header {
  position: relative;
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 24px;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.brand-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  display: inline-block;
}

.nav-desktop {
  display: flex;
  gap: 24px;
  align-items: center;
  list-style: none;
}

.nav-desktop a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--accent-primary);
}

.nav-toggle-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1.35rem;
  line-height: 1;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}

.nav-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  padding: 16px;
  z-index: 100;
  list-style: none;
}

.nav-mobile-menu.open {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-mobile-menu a {
  color: var(--text-primary);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}

.nav-mobile-menu a:hover {
  background-color: var(--bg-surface-hover);
  color: var(--accent-primary);
}

@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .nav-toggle-btn { display: block; }
}

/* Layout Core */
main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 20px;
}

.editorial-reading {
  max-width: 72ch;
  margin: 0 auto;
}

/* Hero Section */
.hero-typographic {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 48px;
}

.hero-tag {
  color: var(--accent-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}

h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #f9fafb;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 64ch;
  line-height: 1.6;
  margin-bottom: 32px;
}

/* Buttons */
.btn-outline {
  display: inline-block;
  padding: 12px 28px;
  background-color: transparent;
  color: var(--accent-primary);
  border: 1.5px solid var(--accent-primary);
  border-radius: 0;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s var(--ease-kinetic);
}

.btn-outline:hover {
  background-color: var(--accent-primary);
  color: var(--bg-canvas);
  box-shadow: 0 0 20px rgba(20, 184, 166, 0.4);
}

.btn-outline-secondary {
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-outline-secondary:hover {
  border-color: var(--text-muted);
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  box-shadow: none;
}

/* Sections */
.studio-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #f3f4f6;
}

h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #f9fafb;
  margin-bottom: 10px;
}

/* Vertical Architectural Timeline */
.timeline-path {
  position: relative;
  padding-left: 36px;
  margin: 32px 0;
}

.timeline-path::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 14px;
  width: 2px;
  background-color: var(--border-subtle);
}

.timeline-node {
  position: relative;
  margin-bottom: 40px;
}

.timeline-marker {
  position: absolute;
  left: -36px;
  top: 0;
  width: 30px;
  height: 30px;
  background-color: var(--bg-surface);
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  font-weight: 800;
  font-size: 0.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: transform 0.25s var(--ease-kinetic), border-color 0.25s ease;
}

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

/* Expressive Image Showcase Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.showcase-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease-kinetic), box-shadow 0.3s ease;
}

.showcase-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-elevation);
  border-color: var(--border-accent);
}

.card-media {
  position: relative;
  width: 100%;
  height: 220px;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.badge-overlap {
  position: absolute;
  bottom: 14px;
  left: 16px;
  background-color: var(--accent-primary);
  color: #042f2e;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 6px;
}

.card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
  flex: 1;
}

.card-action {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-action:hover {
  text-decoration: underline;
}

/* Quote Callout */
.quote-callout {
  border-left: 3px solid var(--accent-primary);
  background-color: var(--bg-surface);
  padding: 24px 32px;
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  margin: 32px 0;
  font-size: 1.1rem;
  font-style: italic;
  color: #f3f4f6;
}

.quote-author {
  display: block;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Responsive Table Wrapper */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  margin: 24px 0;
  background-color: var(--bg-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

th, td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background-color: var(--bg-surface-alt);
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: none;
}

/* Interactive Brief Tool */
.tool-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 32px;
  margin: 32px 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
}

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

.tool-output {
  margin-top: 24px;
  padding: 16px;
  background-color: var(--bg-surface-alt);
  border: 1px dashed var(--border-subtle);
  border-radius: 8px;
  font-family: monospace;
  font-size: 0.85rem;
  color: #a7f3d0;
  white-space: pre-wrap;
  min-height: 80px;
}

.tool-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

/* FAQ Accordion */
.faq-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.faq-summary {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: "+";
  color: var(--accent-primary);
  font-size: 1.3rem;
  font-weight: 400;
}

details[open] .faq-summary::after {
  content: "—";
}

.faq-content {
  padding: 0 24px 20px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Scroll reveal helper */
.reveal-entry {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
footer {
  background-color: var(--bg-surface-alt);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 24px 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.85rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}