/* ==========================================================================
   Tanasuq Design Studio — Stylesheet
   Crafted with architectural proportion, zero-pill discipline, and calm restraint.
   ========================================================================== */

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* 60-30-10 Disciplined Palette */
  --canvas: #FBFBFA;
  --canvas-subtle: #F3EFEA;
  --surface-card: #FFFFFF;
  --surface-border: rgba(23, 23, 22, 0.08);
  --surface-border-strong: rgba(23, 23, 22, 0.16);

  --text-main: #171716;
  --text-muted: #6B6862;
  --text-faint: #9E9B94;

  --accent-primary: #171716;
  --accent-hover: #333230;
  --accent-light: #ECE8E1;

  --container-max: 1240px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--canvas);
  color: var(--text-main);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms var(--ease-smooth);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
}

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

@media (min-width: 768px) {
  .content-container {
    padding: 0 2.5rem;
  }
}

/* ==========================================================================
   Header & Top Bar Contract (1-row, 3-zone contract)
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 251, 250, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
  transition: background-color 200ms var(--ease-smooth);
}

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

@media (min-width: 768px) {
  .header-container {
    padding: 1.25rem 2.5rem;
  }
}

/* Zone 1: Brand Wordmark */
.brand-wordmark {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-main);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Zone 2: Navigation Links */
.desktop-nav {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 860px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  position: relative;
  padding: 0.25rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--text-main);
  transition: width 200ms var(--ease-smooth);
}

.nav-link:hover::after {
  width: 100%;
}

/* Zone 3: Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-header {
  display: none;
}

@media (min-width: 640px) {
  .btn-header {
    display: inline-flex;
  }
}

/* Mobile Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 38px;
  height: 38px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: transparent;
}

@media (min-width: 860px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle .bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--text-main);
  transition: transform 200ms var(--ease-smooth);
}

.mobile-toggle.active .bar:nth-child(1) {
  transform: translateY(3.75px) rotate(45deg);
}

.mobile-toggle.active .bar:nth-child(2) {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 61px;
  left: 0;
  right: 0;
  background-color: var(--canvas);
  border-bottom: 1px solid var(--surface-border);
  padding: 2rem 1.5rem;
  display: none;
  z-index: 99;
}

.mobile-drawer.open {
  display: block;
  animation: slideDown 200ms var(--ease-smooth);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.mobile-nav-link {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-main);
}

.mobile-drawer-footer {
  border-top: 1px solid var(--surface-border);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-coordinates {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: all 180ms var(--ease-smooth);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--surface-border-strong);
}

.btn-secondary:hover {
  background-color: var(--canvas-subtle);
  border-color: var(--text-main);
}

.btn-block {
  width: 100%;
}

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

.section-hero {
  padding: 3.5rem 0 4rem;
}

@media (min-width: 768px) {
  .section-hero {
    padding: 5rem 0 6rem;
  }
}

.hero-header {
  max-width: 820px;
  margin-bottom: 3rem;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.35rem, 5vw, 4.15rem);
  line-height: 1.08;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  text-wrap: balance;
}

.hero-subtext {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Media Carrier */
.hero-media-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 2.5rem;
  border: 1px solid var(--surface-border);
  background-color: var(--canvas-subtle);
}

.hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.media-caption {
  padding: 0.75rem 1rem;
  background-color: var(--surface-card);
  border-top: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.775rem;
  color: var(--text-muted);
}

/* Provenance Strip */
.provenance-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}

@media (min-width: 768px) {
  .provenance-strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}

.provenance-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.provenance-num {
  font-size: 1.85rem;
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: -0.03em;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.provenance-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section: Philosophy
   ========================================================================== */

.section-philosophy {
  padding: 5rem 0;
  background-color: var(--canvas-subtle);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}

.section-header-compact {
  max-width: 760px;
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.775rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  line-height: 1.15;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 1rem;
  text-wrap: balance;
}

.section-lead {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.principles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .principles-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.principle-card {
  background-color: var(--surface-card);
  padding: 2rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  display: flex;
  flex-direction: column;
}

.card-num {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-faint);
  margin-bottom: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.card-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Section: Selected Works
   ========================================================================== */

.section-works {
  padding: 5rem 0;
}

.works-header-row {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .works-header-row {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

/* Interactive Filter Segmented Control */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.35rem;
  background-color: var(--canvas-subtle);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  width: fit-content;
}

.filter-tab {
  padding: 0.45rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  white-space: nowrap;
  transition: all 150ms var(--ease-smooth);
}

.filter-tab:hover {
  color: var(--text-main);
}

.filter-tab.active {
  background-color: var(--surface-card);
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Works Grid */
.works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1080px) {
  .works-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.work-card {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 200ms var(--ease-smooth);
}

.work-card:hover {
  border-color: var(--surface-border-strong);
}

.work-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--canvas-subtle);
}

.work-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms var(--ease-smooth);
}

.work-card:hover .work-img {
  transform: scale(1.025);
}

.work-metric-badge {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  background-color: rgba(23, 23, 22, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.metric-value {
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.metric-desc {
  font-size: 0.7rem;
  color: #D1CFCA;
}

.work-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.work-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.work-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 0.65rem;
}

.work-summary {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.work-cta-btn {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--text-main);
  width: fit-content;
  transition: opacity 150ms var(--ease-smooth);
}

.work-cta-btn:hover {
  opacity: 0.7;
}

/* ==========================================================================
   Section: Disciplines
   ========================================================================== */

.section-disciplines {
  padding: 5rem 0;
  border-top: 1px solid var(--surface-border);
}

.disciplines-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.discipline-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--surface-border);
}

@media (min-width: 768px) {
  .discipline-row {
    grid-template-columns: 80px 1fr 180px;
    gap: 2rem;
  }
}

.discipline-num {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}

.discipline-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.discipline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 1.25rem;
}

.discipline-deliverables {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  font-size: 0.775rem;
  color: var(--text-muted);
}

.timeline-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 768px) {
  .discipline-time {
    text-align: right;
  }
}

/* ==========================================================================
   Section: Interactive Estimator
   ========================================================================== */

.section-estimator {
  padding: 5rem 0;
  background-color: var(--canvas-subtle);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}

.estimator-box {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}

@media (min-width: 768px) {
  .estimator-box {
    padding: 3.5rem 3rem;
  }
}

.estimator-header {
  max-width: 720px;
  margin-bottom: 2.5rem;
}

.estimator-desc {
  font-size: 1rem;
  color: var(--text-muted);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 960px) {
  .estimator-grid {
    grid-template-columns: 1fr 380px;
    gap: 3.5rem;
  }
}

.control-group {
  margin-bottom: 1.75rem;
}

.control-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

.checkbox-buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 600px) {
  .checkbox-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}

.check-pill {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  background-color: var(--canvas);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 150ms var(--ease-smooth);
}

.check-pill input {
  opacity: 0;
  position: absolute;
}

.check-box-custom {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--text-faint);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 150ms var(--ease-smooth);
}

.check-pill input:checked + .check-box-custom {
  background-color: var(--text-main);
  border-color: var(--text-main);
}

.check-pill input:checked + .check-box-custom::after {
  content: '✓';
  color: #FFFFFF;
  font-size: 11px;
}

.check-title {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-main);
}

.styled-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--canvas);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-main);
  outline: none;
  transition: border-color 150ms var(--ease-smooth);
}

.styled-select:focus {
  border-color: var(--text-main);
}

/* Result Card */
.result-card {
  background-color: var(--canvas-subtle);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.result-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.result-metric-row {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--surface-border);
}

.metric-caption {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.25rem;
}

.metric-large {
  font-size: 1.45rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.result-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.estimate-note {
  font-size: 0.725rem;
  color: var(--text-faint);
  line-height: 1.5;
}

/* ==========================================================================
   Section: Testimonials
   ========================================================================== */

.section-testimonials {
  padding: 5rem 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 860px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.quote-author {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.author-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.author-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section: Contact
   ========================================================================== */

.section-contact {
  padding: 5rem 0 6rem;
  border-top: 1px solid var(--surface-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 960px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 4.5rem;
  }
}

.contact-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.detail-label {
  display: block;
  font-size: 0.775rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.detail-link {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-main);
}

.detail-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Form */
.contact-form {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .contact-form {
    padding: 2.5rem;
  }
}

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

@media (min-width: 600px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
}

.field-input, .field-textarea {
  width: 100%;
  padding: 0.75rem 0.95rem;
  font-size: 0.875rem;
  color: var(--text-main);
  background-color: var(--canvas);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 150ms var(--ease-smooth);
}

.field-input:focus, .field-textarea:focus {
  border-color: var(--text-main);
}

.field-textarea {
  resize: vertical;
}

.field-error {
  font-size: 0.725rem;
  color: #B91C1C;
  min-height: 1rem;
}

.form-success-banner {
  padding: 1.25rem;
  background-color: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: var(--radius-sm);
  color: #166534;
  font-size: 0.85rem;
}

.form-success-banner strong {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* ==========================================================================
   Case Study Modal
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(18, 18, 17, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 200ms var(--ease-smooth);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background-color: var(--surface-card);
  border-radius: var(--radius-md);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  z-index: 10;
  transition: color 150ms var(--ease-smooth);
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 2rem 1.5rem;
}

@media (min-width: 768px) {
  .modal-body {
    padding: 3rem 2.5rem;
  }
}

.modal-header-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.modal-img-wrapper {
  margin-bottom: 1.75rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--surface-border);
}

.modal-img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}

.modal-details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .modal-details-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.modal-stat-box {
  background-color: var(--canvas-subtle);
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.modal-stat-label {
  font-size: 0.725rem;
  color: var(--text-muted);
  display: block;
}

.modal-stat-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
}

.modal-prose {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: #171716;
  color: #ECE8E1;
  padding: 5rem 0 3rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand-col .brand-wordmark {
  color: #FFFFFF;
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-tagline {
  font-size: 0.9rem;
  color: #A3A09A;
  max-width: 380px;
  line-height: 1.6;
}

.footer-heading {
  display: block;
  font-size: 0.775rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #7D7A74;
  margin-bottom: 1.25rem;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.875rem;
  color: #D1CFCA;
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-static-item {
  font-size: 0.875rem;
  color: #949089;
}

.footer-bottom-row {
  grid-column: 1 / -1;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.775rem;
  color: #7D7A74;
}

@media (min-width: 600px) {
  .footer-bottom-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.back-to-top {
  color: #D1CFCA;
}

.back-to-top:hover {
  color: #FFFFFF;
}