/* ==========================================================================
   LAT40NORTH — SWISS DESIGN SYSTEM (INTERNATIONAL TYPOGRAPHIC STYLE)
   Color Palette:
   - Vampire Black: #0B0B0B
   - Stark White: #FFFFFF
   - Cool Slate Gray: #8E8E93
   - Sharp Hairline Gray: #2C2C2E
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Jost:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,700&family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Chromatic Tokens (Dark Default) */
  --bg-primary: #0B0B0B;
  --bg-surface: #111111;
  --bg-surface-elevated: #161616;
  --bg-card: #0F0F0F;
  --bg-card-hover: #141414;
  
  --text-primary: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-muted: #545458;
  
  --border-line: #2C2C2E;
  --border-line-light: #3A3A3C;
  --border-active: #FFFFFF;

  --header-bg: rgba(11, 11, 11, 0.96);
  --modal-backdrop: rgba(11, 11, 11, 0.85);
  --nav-hover-bg: #1a1a1a;
  --btn-secondary-hover-bg: #1a1a1a;
  --team-avatar-bg: #121212;
  
  /* Typographic Stacks */
  --font-header: 'Futura', 'Jost', 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Gotham', 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Courier New', monospace;
  
  /* Modular Spacing Scale (Swiss 8pt grid) */
  --space-2: 2px;
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-14: 14px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-36: 36px;
  --space-40: 40px;
  --space-48: 48px;
  --space-64: 64px;
  --space-80: 80px;
  --space-96: 96px;
  --space-128: 128px;
  
  /* Layout Bounds */
  --max-width: 1440px;
  --header-height: 72px;
  
  /* Instantaneous / Crisp Micro-interactions */
  --transition-instant: 0.08s cubic-bezier(0, 0, 0.2, 1);
  --transition-theme: 0.2s ease;
}

[data-theme="light"] {
  /* Chromatic Tokens (Light Swiss Typographic Style) */
  --bg-primary: #FFFFFF;
  --bg-surface: #F5F5F7;
  --bg-surface-elevated: #EAEAEE;
  --bg-card: #FAFAFC;
  --bg-card-hover: #F0F0F4;
  
  --text-primary: #0B0B0B;
  --text-secondary: #55555A;
  --text-muted: #8E8E93;
  
  --border-line: #D8D8DC;
  --border-line-light: #C4C4CA;
  --border-active: #0B0B0B;

  --header-bg: rgba(255, 255, 255, 0.96);
  --modal-backdrop: rgba(0, 0, 0, 0.6);
  --nav-hover-bg: #EAEAEF;
  --btn-secondary-hover-bg: #F0F0F4;
  --team-avatar-bg: #F5F5F7;
}

/* ==========================================================================
   Base Reset & Swiss Geometry
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Strict Swiss geometric hard edges */
}

html {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-theme), color var(--transition-theme);
}

.swiss-frame,
.section-header-block,
.hero-section,
.hero-top-bar,
.hero-top-item,
.hero-main-col,
.hero-sidebar-col,
.metric-cell,
.service-card,
.project-card,
.team-member-card,
.team-portrait-wrapper,
.team-bio-wrapper,
.credential-block,
.team-expand-bar,
.contact-info-col,
.contact-form-col,
.site-footer,
.footer-col,
.footer-bottom-bar,
.modal-box,
.modal-header,
.modal-spec-cell,
.mobile-nav-drawer {
  transition: background-color var(--transition-theme), border-color var(--transition-theme), color var(--transition-theme);
}

/* Custom Swiss Minimal Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-left: 1px solid var(--border-line);
}
::-webkit-scrollbar-thumb {
  background: var(--border-line);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

::selection {
  background: var(--text-primary);
  color: var(--bg-primary);
}

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

/* Themed Brand Graphics (Switches cleanly between Light and Dark modes) */
.brand-img-light {
  display: none !important;
}
.brand-img-dark {
  display: block !important;
}

[data-theme="light"] .brand-img-light {
  display: block !important;
}
[data-theme="light"] .brand-img-dark {
  display: none !important;
}

.footer-brand-logo {
  max-width: 220px;
  height: auto;
  display: block;
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: none;
  outline: none;
}

/* ==========================================================================
   Mathematical Grid Frame & Structural Lines
   ========================================================================== */

.swiss-frame {
  max-width: var(--max-width);
  margin: 0 auto;
  border-left: 1px solid var(--border-line);
  border-right: 1px solid var(--border-line);
  position: relative;
  background-color: var(--bg-primary);
}

.grid-line-h {
  width: 100%;
  height: 1px;
  background-color: var(--border-line);
}

.section-divider {
  border-top: 1px solid var(--border-line);
}

/* Coordinate / Swiss Meta Tags */
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.meta-label::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  background-color: var(--text-primary);
}

.meta-label.muted {
  color: var(--text-muted);
}
.meta-label.muted::before {
  background-color: var(--text-muted);
}

.section-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: var(--space-12);
  display: block;
}

/* Swiss Section Header Block */
.section-header-block {
  padding: var(--space-48) var(--space-32);
  border-bottom: 1px solid var(--border-line);
  display: grid;
  grid-template-columns: 240px 1fr auto;
  align-items: end;
  gap: var(--space-24);
  background-color: var(--bg-surface);
}

.section-num {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.04em;
}

.section-title {
  font-family: var(--font-header);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  line-height: 1.1;
}

.section-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.5;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-line);
  transition: background-color var(--transition-theme), border-color var(--transition-theme);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--header-height);
  padding: 0 var(--space-32);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-left: 1px solid var(--border-line);
  border-right: 1px solid var(--border-line);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-8) 0;
}

.brand-logo-svg {
  height: 38px;
  width: auto;
  display: block;
}

.brand-logo-mark {
  stroke: var(--text-primary);
}
.brand-logo-mark rect,
.brand-logo-mark line {
  stroke: var(--text-primary);
}
.brand-logo-mark circle {
  fill: var(--text-primary);
  stroke: var(--text-primary);
}
.brand-logo-mark path {
  fill: var(--text-primary);
}
.brand-logo-title {
  fill: var(--text-primary);
}
.brand-logo-sub {
  fill: var(--text-secondary);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0;
  height: 100%;
}

.nav-link {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-24);
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-left: 1px solid var(--border-line);
  position: relative;
  transition: color var(--transition-instant), background-color var(--transition-instant);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background-color: var(--nav-hover-bg);
}

.header-telemetry {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding-left: var(--space-24);
  border-left: 1px solid var(--border-line);
  height: var(--header-height);
}

.telemetry-item {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  white-space: nowrap;
}

.telemetry-item span {
  color: var(--text-primary);
  font-weight: 600;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: #34C759;
  margin-right: 6px;
}

/* Swiss Design Theme Toggle Button */
.btn-theme-toggle {
  height: 40px;
  padding: 0 var(--space-16);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  border: 1px solid var(--border-line);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-instant), color var(--transition-instant), border-color var(--transition-instant);
}

.btn-theme-toggle:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

.theme-toggle-icon {
  font-size: 0.875rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle-text {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.mobile-theme-toggle-wrap {
  padding: var(--space-16) var(--space-24);
  border-bottom: 1px solid var(--border-line);
}

.mobile-theme-toggle {
  width: 100%;
  height: 48px;
  font-size: 0.8125rem;
}

.btn-header-cta {
  height: 40px;
  padding: 0 var(--space-20);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-family: var(--font-header);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-instant), color var(--transition-instant), border-color var(--transition-instant);
}

.btn-header-cta:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-line);
  padding: var(--space-12);
  cursor: pointer;
  color: var(--text-primary);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  position: relative;
  background-color: var(--bg-primary);
}

.hero-top-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-surface);
}

.hero-top-item {
  padding: var(--space-16) var(--space-32);
  border-right: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-top-item:last-child {
  border-right: none;
}

.hero-top-item .label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.hero-top-item .val {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.06em;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  border-bottom: 1px solid var(--border-line);
  min-height: 520px;
}

.hero-main-col {
  padding: var(--space-80) var(--space-48) var(--space-64) var(--space-48);
  border-right: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-title-group {
  margin-bottom: var(--space-48);
}

.hero-agency-name {
  font-family: var(--font-header);
  font-size: clamp(3.25rem, 8.5vw, 6.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 0.95;
  color: var(--text-primary);
  margin-bottom: var(--space-24);
  word-break: break-word;
}

.hero-proposition {
  font-family: var(--font-header);
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  max-width: 780px;
  border-left: 3px solid var(--text-primary);
  padding-left: var(--space-20);
}

.hero-proposition-highlight {
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: var(--space-32);
}

.btn-primary {
  height: 56px;
  padding: 0 var(--space-36);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  border: 1px solid var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-instant), color var(--transition-instant);
}

.btn-primary:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.btn-primary svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.btn-secondary {
  height: 56px;
  padding: 0 var(--space-32);
  background-color: transparent;
  color: var(--text-primary);
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  border: 1px solid var(--border-line);
  border-left: none;
  cursor: pointer;
  transition: background-color var(--transition-instant), border-color var(--transition-instant);
}

.btn-secondary:hover {
  background-color: var(--btn-secondary-hover-bg);
  border-color: var(--border-line-light);
}

.hero-sidebar-col {
  padding: var(--space-64) var(--space-36);
  background-color: var(--bg-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-sidebar-block {
  margin-bottom: var(--space-36);
}

.hero-sidebar-title {
  font-family: var(--font-header);
  font-size: 0.875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-primary);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-line);
}

.hero-sidebar-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--border-line);
  margin-top: auto;
}

.metric-cell {
  background-color: var(--bg-surface);
  padding: var(--space-20);
}

.metric-number {
  font-family: var(--font-header);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* ==========================================================================
   Services Grid (Strict 3-Column Swiss Grid)
   ========================================================================== */

.services-section {
  position: relative;
}

.services-grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background-color: var(--border-line);
  gap: 1px;
}

.service-card {
  background-color: var(--bg-primary);
  padding: var(--space-48) var(--space-36);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 480px;
  position: relative;
  transition: background-color var(--transition-instant);
}

.service-card:hover {
  background-color: var(--bg-card-hover);
}

.service-card-header {
  margin-bottom: var(--space-32);
}

.service-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-24);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-line);
}

.service-card-num {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.service-card-category {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.service-card-title {
  font-family: var(--font-header);
  font-size: 2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  line-height: 1.1;
}

.service-card-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: var(--space-36);
}

.service-card-body p + p {
  margin-top: var(--space-16);
}

.service-card-footer {
  border-top: 1px solid var(--border-line);
  padding-top: var(--space-20);
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.service-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-line);
  padding: var(--space-4) var(--space-10);
}

.service-link {
  font-family: var(--font-header);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  margin-top: var(--space-4);
  cursor: pointer;
}

.service-link:hover {
  color: var(--text-secondary);
}

.service-link svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-instant);
}

.service-link:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   Project Portfolio (Case Studies Grid)
   ========================================================================== */

.portfolio-section {
  position: relative;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--border-line);
}

.project-card {
  background-color: var(--bg-primary);
  padding: var(--space-48) var(--space-40);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 420px;
  position: relative;
  cursor: pointer;
  transition: background-color var(--transition-instant);
}

.project-card:hover {
  background-color: var(--bg-card-hover);
}

.project-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-32);
}

.project-num {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.05em;
}

.project-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border: 1px solid var(--border-line);
  padding: var(--space-4) var(--space-12);
  background-color: var(--bg-surface);
}

.project-content {
  margin-bottom: var(--space-32);
}

.project-client-type {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}

.project-title {
  font-family: var(--font-header);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-16);
}

.project-summary {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.project-footer {
  border-top: 1px solid var(--border-line);
  padding-top: var(--space-20);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-deliverables {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.project-action-btn {
  font-family: var(--font-header);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
}

.project-action-btn:hover {
  text-decoration: underline;
}

/* ==========================================================================
   About Section (Biographical & Expandable Team Registry)
   ========================================================================== */

.about-section {
  position: relative;
}

.team-list {
  display: flex;
  flex-direction: column;
}

.team-member-card {
  display: grid;
  grid-template-columns: 360px 1fr;
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-primary);
}

.team-portrait-wrapper {
  border-right: 1px solid var(--border-line);
  background-color: var(--bg-surface);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-32);
}

.team-portrait-container {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-line);
  overflow: hidden;
  position: relative;
  margin-bottom: var(--space-24);
}

.team-portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(110%);
  transition: filter var(--transition-instant);
}

.team-member-card:hover .team-portrait-img {
  filter: grayscale(100%) contrast(125%);
}

.portrait-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.portrait-meta-item {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.portrait-meta-item span {
  color: var(--text-primary);
}

.team-bio-wrapper {
  padding: var(--space-48) var(--space-48) var(--space-48) var(--space-48);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.team-bio-header {
  margin-bottom: var(--space-32);
  padding-bottom: var(--space-24);
  border-bottom: 1px solid var(--border-line);
}

.team-member-name {
  font-family: var(--font-header);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.team-member-role {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.team-bio-content {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-40);
}

.team-bio-content p {
  margin-bottom: var(--space-16);
}

.team-bio-content p:last-child {
  margin-bottom: 0;
}

.team-credentials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--border-line);
  margin-top: auto;
}

.credential-block {
  background-color: var(--bg-surface);
  padding: var(--space-16);
}

.credential-title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.credential-text {
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}

/* Expandable Architecture Controls */
.team-expand-bar {
  padding: var(--space-24) var(--space-32);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.team-registry-info {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.btn-expand-team {
  font-family: var(--font-header);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
  border: 1px solid var(--border-line);
  padding: var(--space-8) var(--space-20);
  background-color: var(--bg-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  transition: border-color var(--transition-instant), background-color var(--transition-instant);
}

.btn-expand-team:hover {
  border-color: var(--text-primary);
  background-color: var(--btn-secondary-hover-bg);
}

/* Dynamically injected member cards container */
#expanded-team-container {
  display: none;
}

#expanded-team-container.active {
  display: block;
}

/* ==========================================================================
   Contact Area (Architectural Form)
   ========================================================================== */

.contact-section {
  position: relative;
}

.contact-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  border-bottom: 1px solid var(--border-line);
}

.contact-info-col {
  padding: var(--space-64) var(--space-48);
  border-right: 1px solid var(--border-line);
  background-color: var(--bg-surface);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-block {
  margin-bottom: var(--space-40);
}

.contact-info-heading {
  font-family: var(--font-header);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: var(--space-16);
  line-height: 1.15;
}

.contact-info-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.contact-direct-channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
  border-top: 1px solid var(--border-line);
  padding-top: var(--space-32);
}

.channel-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.channel-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.channel-value {
  font-family: var(--font-header);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.channel-value:hover {
  color: var(--text-secondary);
}

/* Contact Form Grid */
.contact-form-col {
  padding: var(--space-64) var(--space-48);
  background-color: var(--bg-primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-32);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: relative;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.form-label-req {
  color: var(--text-muted);
}

/* Swiss Minimal Line Inputs */
.form-input, .form-textarea, .form-select {
  width: 100%;
  background-color: transparent;
  color: var(--text-primary);
  border: none;
  border-bottom: 1px solid var(--border-line);
  padding: var(--space-12) 0;
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: -0.01em;
  transition: border-color var(--transition-instant);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-bottom-color: var(--border-active);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

/* Service Selector Radio Buttons (Swiss Grid Style) */
.service-options-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--border-line);
  margin-top: var(--space-4);
}

.service-option-item {
  position: relative;
  background-color: var(--bg-surface);
}

.service-option-item input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 2;
}

.service-option-label {
  display: block;
  padding: var(--space-14) var(--space-8);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-instant), color var(--transition-instant);
}

.service-option-item input[type="radio"]:checked + .service-option-label {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-weight: 700;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-line);
  padding-top: var(--space-32);
  margin-top: var(--space-8);
}

.form-policy-note {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.btn-submit {
  height: 56px;
  padding: 0 var(--space-48);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  border: 1px solid var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-instant), color var(--transition-instant);
}

.btn-submit:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==========================================================================
   Footer & Swiss Colophon
   ========================================================================== */

.site-footer {
  position: relative;
  background-color: var(--bg-primary);
}

.footer-main-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border-line);
}

.footer-col {
  padding: var(--space-48) var(--space-32);
  border-right: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.footer-col:last-child {
  border-right: none;
}

.footer-brand-title {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.footer-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.footer-nav-link {
  font-family: var(--font-header);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

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

.footer-bottom-bar {
  padding: var(--space-24) var(--space-32);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.footer-coordinates {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ==========================================================================
   Modals & Swiss Dialog Components
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--modal-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-24);
}

.modal-backdrop.active {
  display: flex;
}

.modal-box {
  background-color: var(--bg-primary);
  border: 1px solid var(--text-primary);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-header {
  padding: var(--space-24) var(--space-32);
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.modal-close-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  border: 1px solid var(--border-line);
  padding: var(--space-6) var(--space-12);
  cursor: pointer;
}

.modal-close-btn:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

.modal-body {
  padding: var(--space-32);
}

.modal-body p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: var(--space-16);
}

.modal-specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--border-line);
  margin: var(--space-24) 0;
}

.modal-spec-cell {
  background-color: var(--bg-surface);
  padding: var(--space-16);
}

.modal-spec-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.modal-spec-val {
  font-family: var(--font-header);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-primary);
}

/* Toast Notification (Swiss Minimal) */
.toast-notice {
  position: fixed;
  bottom: var(--space-32);
  right: var(--space-32);
  background-color: var(--text-primary);
  color: var(--bg-primary);
  padding: var(--space-16) var(--space-24);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--text-primary);
  z-index: 300;
  display: none;
}

.toast-notice.active {
  display: block;
}

/* ==========================================================================
   Responsive Breakpoints (Mobile & Tablet)
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-main-col {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
    padding: var(--space-48) var(--space-32);
  }
  .hero-sidebar-col {
    padding: var(--space-40) var(--space-32);
  }
  .services-grid-container {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .team-member-card {
    grid-template-columns: 1fr;
  }
  .team-portrait-wrapper {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .contact-info-col {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
    padding: var(--space-40) var(--space-32);
  }
  .contact-form-col {
    padding: var(--space-40) var(--space-32);
  }
  .footer-main-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-col {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  .header-inner {
    padding: 0 var(--space-16);
  }
  .nav-desktop, .header-telemetry {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  
  /* Mobile Navigation Drawer */
  .mobile-nav-drawer {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-line);
    display: none;
    flex-direction: column;
    z-index: 99;
  }
  .mobile-nav-drawer.active {
    display: flex;
  }
  .mobile-nav-link {
    padding: var(--space-20) var(--space-24);
    font-family: var(--font-header);
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-line);
  }
  .mobile-nav-link:hover {
    background-color: var(--bg-surface);
  }

  .hero-top-bar {
    grid-template-columns: 1fr 1fr;
  }
  .hero-top-item:nth-child(2) {
    border-right: none;
  }
  .hero-top-item:nth-child(3), .hero-top-item:nth-child(4) {
    border-top: 1px solid var(--border-line);
  }
  .hero-top-item:nth-child(3) {
    border-right: 1px solid var(--border-line);
  }

  .section-header-block {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    padding: var(--space-32) var(--space-20);
  }
  .section-num {
    font-size: 1.5rem;
  }

  .hero-main-col {
    padding: var(--space-40) var(--space-20);
  }
  .hero-agency-name {
    font-size: 3rem;
  }
  .hero-proposition {
    font-size: 1.15rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .btn-secondary {
    border-left: 1px solid var(--border-line);
    border-top: none;
  }

  .service-card, .project-card, .team-portrait-wrapper, .team-bio-wrapper {
    padding: var(--space-32) var(--space-20);
  }

  .team-credentials-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  .service-options-grid {
    grid-template-columns: 1fr 1fr;
  }
  .form-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-20);
  }
  .btn-submit {
    width: 100%;
  }

  .footer-main-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom-bar {
    flex-direction: column;
    gap: var(--space-12);
    align-items: flex-start;
    padding: var(--space-20);
  }
}