/* ==========================================================================
   1. RESET
   ========================================================================== */

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

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

body,
h1, h2, h3, h4, p,
figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

input, textarea {
  font: inherit;
}

/* ==========================================================================
   2. VARIABLES
   ========================================================================== */

:root {
  /* Color */
  --color-background: #F5F1E8;
  --color-surface: #FAF8F2;

  --color-sand: #E7DED0;
  --color-sage: #A9B19D;
  --color-terracotta: #C77F62;

  --color-charcoal: #30312D;
  --color-muted: #74756E;

  --color-border: #DDD7CC;

  --color-on-charcoal: #F5F1E8;

  /* Typography */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6rem;
  --space-8: 8rem;

  /* Radius */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Container */
  --container-width: 1280px;
  --container-padding: 1.5rem;

  /* Motion */
  --ease-soft: cubic-bezier(.22, 1, .36, 1);
  --duration-fast: 250ms;
  --duration-normal: 500ms;
  --duration-slow: 800ms;
}

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

@media (min-width: 1200px) {
  :root {
    --container-padding: 4rem;
  }
}

/* ==========================================================================
   3. BASE TYPOGRAPHY
   ========================================================================== */

body {
  font-family: var(--font-sans);
  background: var(--color-background);
  color: var(--color-charcoal);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  color: var(--color-charcoal);
  letter-spacing: -0.01em;
}

p {
  color: var(--color-muted);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-terracotta);
  margin-bottom: var(--space-2);
}

.section-heading {
  font-size: clamp(1.9rem, 1.6rem + 1.6vw, 3rem);
  max-width: 22ch;
}

.section-support {
  margin-top: var(--space-2);
  max-width: 60ch;
  font-size: 1.0625rem;
}

/* ==========================================================================
   4. GLOBAL LAYOUT
   ========================================================================== */

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

section {
  padding-block: var(--space-7);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-6);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-charcoal);
  color: var(--color-on-charcoal);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 200;
}

.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--color-terracotta);
  outline-offset: 3px;
  border-radius: 4px;
}

.placeholder-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-terracotta);
  opacity: 0.75;
}

/* ==========================================================================
   COMPONENTS — buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.9rem 1.75rem;
  border-radius: 999px;
  transition: background var(--duration-fast) var(--ease-soft),
              color var(--duration-fast) var(--ease-soft),
              transform var(--duration-fast) var(--ease-soft);
  min-height: 44px;
}

.btn span {
  transition: transform var(--duration-fast) var(--ease-soft);
}

.btn:hover span {
  transform: translateX(3px);
}

.btn-dark {
  background: var(--color-charcoal);
  color: var(--color-on-charcoal);
}

.btn-dark:hover {
  background: #46473F;
}

.btn-ghost {
  background: transparent;
  color: var(--color-charcoal);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-charcoal);
}

.btn-light {
  background: var(--color-surface);
  color: var(--color-charcoal);
}

.btn-light:hover {
  background: #FFFFFF;
}

/* ==========================================================================
   5. HEADER
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-fast) var(--ease-soft);
}

/*
  The blur/background live on a pseudo-element rather than directly on
  .site-header. backdrop-filter on the header itself would make it the
  containing block for its position:fixed .mobile-nav child, breaking
  the full-screen overlay (it would size to the header's own box
  instead of the viewport).
*/
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: color-mix(in srgb, var(--color-background) 88%, transparent);
  backdrop-filter: blur(10px);
  transition: background var(--duration-fast) var(--ease-soft);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-charcoal);
  white-space: nowrap;
}

.logo-amp {
  color: var(--color-terracotta);
  font-style: italic;
}

.primary-nav {
  display: none;
}

.primary-nav ul {
  display: flex;
  gap: var(--space-5);
}

.primary-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-charcoal);
  position: relative;
  padding-block: 0.25rem;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--color-terracotta);
  transition: right var(--duration-normal) var(--ease-soft);
}

.primary-nav a:hover::after {
  right: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  position: relative;
  z-index: 95;
}

.header-cta {
  display: none;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.menu-toggle-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 22px;
}

.menu-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-charcoal);
  transition: transform var(--duration-normal) var(--ease-soft),
              opacity var(--duration-normal) var(--ease-soft);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: 0;
  top: 0;
  background: var(--color-background);
  padding: 6.5rem var(--container-padding) var(--space-6);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-soft),
              transform var(--duration-normal) var(--ease-soft),
              visibility 0s var(--duration-normal);
  z-index: 90;
}

.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--duration-normal) var(--ease-soft),
              transform var(--duration-normal) var(--ease-soft),
              visibility 0s 0s;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
}

.mobile-nav-cta {
  margin-top: var(--space-3);
  display: inline-flex;
  color: var(--color-terracotta);
}

@media (min-width: 1024px) {
  .primary-nav {
    display: block;
  }

  .header-cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none;
  }
}

/* ==========================================================================
   6. HERO
   ========================================================================== */

.hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  gap: var(--space-5);
}

.hero-heading {
  font-size: clamp(2.5rem, 2rem + 4vw, 4.75rem);
  margin-bottom: var(--space-3);
}

.hero-support {
  max-width: 42ch;
  font-size: 1.125rem;
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero-media {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

@media (min-width: 1024px) {
  .hero {
    padding-top: var(--space-7);
    padding-bottom: var(--space-8);
  }

  .hero-inner {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: center;
    gap: var(--space-6);
  }

  .hero-media {
    order: 2;
  }

  .hero-copy {
    order: 1;
  }

  .hero-image {
    aspect-ratio: 3 / 4;
  }
}

/* ==========================================================================
   7. TRUST STATISTICS
   ========================================================================== */

.stats {
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 1.9rem + 1.4vw, 3.25rem);
  color: var(--color-charcoal);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.4;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   8. PROJECTS
   ========================================================================== */

.projects {
  padding-top: var(--space-8);
}

.project {
  margin-bottom: var(--space-4);
}

.project-media {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.project-media img {
  width: 100%;
  height: auto;
  transition: transform var(--duration-slow) var(--ease-soft);
}

.project-media:hover img {
  transform: scale(1.03);
}

.project-featured .project-media img {
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.project-wide .project-media img {
  aspect-ratio: 16 / 9;
}

.project-info {
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
}

.project-info h3 {
  font-size: 1.375rem;
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 0 var(--space-4);
}

.project-meta-compact {
  grid-template-columns: repeat(3, auto);
}

.project-meta dt {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

.project-meta dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-charcoal);
  font-weight: 500;
}

.project-pair {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.project-pair .project {
  margin-bottom: 0;
}

.project-pair .project-media img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

@media (min-width: 768px) {
  .project-pair {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .project-info {
    padding-top: var(--space-4);
  }
}

/* ==========================================================================
   9. SERVICES
   ========================================================================== */

.services {
  background: var(--color-surface);
}

.services-list {
  border-top: 1px solid var(--color-border);
  max-width: 760px;
}

.service-item {
  border-bottom: 1px solid var(--color-border);
}

.service-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  text-align: left;
  min-height: 44px;
}

.service-name {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.625rem);
}

.service-icon {
  font-size: 1.5rem;
  color: var(--color-terracotta);
  transition: transform var(--duration-normal) var(--ease-soft);
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.service-toggle[aria-expanded="true"] .service-icon {
  transform: rotate(45deg);
}

.service-detail {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  padding-bottom: 0;
  transition: grid-template-rows var(--duration-normal) var(--ease-soft),
              padding-bottom var(--duration-normal) var(--ease-soft);
}

.service-item.is-open .service-detail {
  grid-template-rows: 1fr;
  padding-bottom: var(--space-3);
}

.service-detail p {
  overflow: hidden;
  min-height: 0;
  max-width: 56ch;
  margin: 0;
}

/* ==========================================================================
   10. TRUST SECTION
   ========================================================================== */

.trust-grid {
  display: grid;
  gap: var(--space-4);
}

.trust-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.trust-number {
  font-family: var(--font-display);
  color: var(--color-sage);
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.trust-card h3 {
  font-size: 1.1875rem;
  margin-bottom: 0.5rem;
}

.trust-card p {
  font-size: 0.9375rem;
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   11. PROCESS
   ========================================================================== */

.process {
  background: var(--color-charcoal);
  color: var(--color-on-charcoal);
  border-radius: var(--radius-xl);
  margin-inline: var(--space-2);
}

.process .eyebrow {
  color: var(--color-terracotta);
}

.process .section-heading {
  color: var(--color-on-charcoal);
}

.process-list {
  display: grid;
  gap: var(--space-5);
}

.process-step {
  border-top: 1px solid rgba(245, 241, 232, 0.16);
  padding-top: var(--space-3);
}

.process-index {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-terracotta);
  display: block;
  margin-bottom: var(--space-2);
}

.process-step h3 {
  color: var(--color-on-charcoal);
  font-size: 1.375rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  color: rgba(245, 241, 232, 0.72);
  max-width: 38ch;
  font-size: 0.9375rem;
}

@media (min-width: 768px) {
  .process-list {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .process-list {
    grid-template-columns: repeat(5, 1fr);
  }

  .process {
    margin-inline: var(--space-4);
  }
}

/* ==========================================================================
   12. BEHIND THE BUILD
   ========================================================================== */

.build-stages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.build-stage {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.build-stage img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-soft);
}

.build-stage:hover img {
  transform: scale(1.04);
}

.build-stage figcaption {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-on-charcoal);
  background: rgba(48, 49, 45, 0.55);
  backdrop-filter: blur(4px);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

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

@media (min-width: 1024px) {
  .build-stages {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ==========================================================================
   13. TRANSPARENCY
   ========================================================================== */

.transparency-inner {
  display: grid;
  gap: var(--space-5);
}

.transparency-media {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.transparency-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.transparency-list {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
  max-width: 46ch;
}

.transparency-list li {
  padding-left: var(--space-3);
  position: relative;
  color: var(--color-charcoal);
  font-size: 1rem;
}

.transparency-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-terracotta);
}

@media (min-width: 1024px) {
  .transparency-inner {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: var(--space-7);
  }
}

/* ==========================================================================
   14. TESTIMONIALS
   (kept for when real testimonials are added — section is commented out
   in index.html; see the note there)
   ========================================================================== */

.testimonial-grid {
  display: grid;
  gap: var(--space-4);
}

.testimonial {
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.testimonial p {
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--color-charcoal);
  line-height: 1.4;
  margin-bottom: var(--space-3);
}

.testimonial footer {
  display: flex;
  flex-direction: column;
  font-size: 0.875rem;
}

.testimonial cite {
  font-style: normal;
  font-weight: 600;
}

.testimonial footer span {
  color: var(--color-muted);
}

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

/* ==========================================================================
   15. CTA
   ========================================================================== */

.final-cta {
  background: var(--color-charcoal);
  color: var(--color-on-charcoal);
  border-radius: var(--radius-xl);
  margin-inline: var(--space-2);
  text-align: center;
}

.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.final-cta-heading {
  color: var(--color-on-charcoal);
  font-size: clamp(2rem, 1.7rem + 2vw, 3.25rem);
  max-width: 18ch;
}

.final-cta-support {
  margin-top: var(--space-3);
  color: rgba(245, 241, 232, 0.72);
  max-width: 40ch;
}

.final-cta-actions {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.cta-secondary-link {
  font-size: 0.9375rem;
  color: rgba(245, 241, 232, 0.72);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cta-secondary-link:hover {
  color: var(--color-on-charcoal);
}

@media (min-width: 1024px) {
  .final-cta {
    margin-inline: var(--space-4);
  }
}

/* ==========================================================================
   16. FOOTER
   ========================================================================== */

.site-footer {
  padding-top: var(--space-7);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
}

.footer-brand p {
  margin-top: var(--space-2);
  max-width: 32ch;
  font-size: 0.9375rem;
}

.logo-footer {
  font-size: 1.375rem;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.footer-heading {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.footer-nav ul {
  display: grid;
  gap: 0.6rem;
}

.footer-nav a {
  font-size: 0.9375rem;
}

.footer-nav a:hover {
  color: var(--color-terracotta);
}

.footer-bottom {
  padding-block: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  font-size: 0.8125rem;
}

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

  .footer-nav {
    grid-template-columns: repeat(2, minmax(140px, auto));
    gap: var(--space-6);
  }
}

/* ==========================================================================
   17. ANIMATIONS
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-slow) var(--ease-soft),
              transform var(--duration-slow) var(--ease-soft);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   18. RESPONSIVE RULES (see also per-component breakpoints above)
   ========================================================================== */

@media (max-width: 767px) {
  section {
    padding-block: var(--space-6);
  }
}

body {
  overflow-x: hidden;
}

/* ==========================================================================
   19. ACCESSIBILITY
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}