/* ==========================================================================
   STONE — STRUCTURAL & EDITORIAL STYLESHEET
   Architectural Color Palette: Warm Off-White, Charcoal, Muted Sage, Stone Grey
   ========================================================================== */

:root {
  --color-bg: #F7F6F2;           /* Warm Off-White */
  --color-surface: #EFECE6;      /* Light Stone Grey */
  --color-text: #1C1D1D;         /* Charcoal */
  --color-text-muted: #626462;   /* Slate Muted Grey */
  --color-border: #D8D5CD;       /* Architectural Line Grey */
  --color-sage: #4E594F;         /* Deep Sage */
  --color-terracotta: #B85B3A;   /* Restrained Terracotta Accent */

  --font-serif: 'Times New Roman', Times, 'Didot', Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 80px;
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* TYPOGRAPHY UTILITIES */
.meta-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-sage);
  font-weight: 600;
  display: block;
  margin-bottom: 1rem;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 4rem;
}

.section-num {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-sage);
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: var(--transition-smooth);
  cursor: pointer;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-sage);
  border-color: var(--color-sage);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text);
  background-color: rgba(0,0,0,0.03);
}

/* PLACEHOLDER IMAGE SYSTEM */
.image-frame {
  position: relative;
  width: 100%;
  background-color: var(--color-surface);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.img-fallback-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  text-align: center;
  padding: 1.5rem;
  pointer-events: none;
  z-index: 1;
}

.img-fallback-label span {
  font-weight: 700;
  letter-spacing: 0.15em;
  font-size: 0.875rem;
  color: var(--color-text);
}

.img-fallback-label small {
  margin-top: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--color-sage);
  text-transform: uppercase;
}

/* Hide fallback text if actual image loads */
.image-frame.img-loaded .img-fallback-label {
  display: none;
}

.architectural-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.75rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(247, 246, 242, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  height: 65px;
  border-bottom-color: var(--color-border);
  background-color: rgba(247, 246, 242, 0.98);
}

.header-container {
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--color-text);
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--color-sage);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
  position: relative;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  flex-direction: column;
  justify-content: space-between;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: var(--transition-smooth);
}

/* HERO SECTION */
.hero-section {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.hero-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 440px;
  margin-bottom: 2.5rem;
}

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

.hero-image-frame {
  aspect-ratio: 4/5;
}

/* WORK SECTION */
.work-section {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 7rem;
}

.project-item {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 4rem;
  align-items: center;
}

.project-item.project-right {
  grid-template-columns: 1fr 1.3fr;
}

.project-visual .image-frame {
  aspect-ratio: 16/11;
}

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

.project-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--color-sage);
  font-weight: 600;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.project-location {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
  font-family: var(--font-serif);
  margin-bottom: 1.5rem;
}

.project-desc {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 420px;
}

.project-link {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.project-link .arrow {
  transition: transform 0.3s ease;
}

.project-link:hover .arrow {
  transform: translateX(5px);
}

/* SERVICES SECTION */
.services-section {
  padding: 6rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.service-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2.5rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-smooth);
}

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

.service-item:hover {
  background-color: rgba(255, 255, 255, 0.4);
  padding-left: 2.5rem;
}

.service-num {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-sage);
  transition: transform 0.3s ease;
}

.service-item:hover .service-num {
  transform: translateX(5px);
  color: var(--color-terracotta);
}

.service-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.service-desc {
  color: var(--color-text-muted);
  max-width: 650px;
}

/* ABOUT SECTION */
.about-section {
  padding: 7rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5rem;
  align-items: start;
}

.about-headline {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.about-text {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.stat-num {
  display: block;
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-sage);
  font-weight: 700;
}

.about-visual .image-frame {
  aspect-ratio: 4/5;
}

/* TRUST SECTION */
.trust-section {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background-color: #F1EFEA;
}

.trust-wrapper {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
}

.rating-stars {
  color: var(--color-terracotta);
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
}

.trust-quote {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.4;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 2rem;
}

.trust-author {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 4rem;
}

.author-name {
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.author-loc {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--color-sage);
}

.trust-references {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

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

.ref-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--color-sage);
  font-weight: 700;
}

.ref-val {
  font-size: 0.875rem;
  font-weight: 700;
}

/* CONTACT SECTION */
.contact-section {
  padding: 7rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
}

.contact-headline {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.contact-sub {
  color: var(--color-text-muted);
  margin-bottom: 3rem;
  max-width: 400px;
}

.contact-direct {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.direct-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--color-sage);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.direct-val {
  font-size: 0.95rem;
  font-weight: 600;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text);
}

input, select, textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  transition: var(--transition-smooth);
  border-radius: 0;
  -webkit-appearance: none;
}

textarea {
  resize: vertical; /* Explicitly prevent horizontal resizability */
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-text);
  background-color: #FFF;
}

.btn-submit {
  width: 100%;
  padding: 1.1rem;
  margin-top: 0.5rem;
}

.form-status {
  font-size: 0.8rem;
  padding: 0.75rem;
  margin-top: 0.5rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: rgba(78, 89, 79, 0.15);
  color: var(--color-sage);
  border: 1px solid var(--color-sage);
}

/* FOOTER */
.site-footer {
  background-color: var(--color-text);
  color: var(--color-bg);
  padding: 5rem 0 3rem 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: #A0A3A0;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-col-title {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-sage);
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.footer-col p, .footer-col a {
  font-size: 0.8rem;
  color: #C5C7C5;
  line-height: 1.8;

}

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

.footer-rule {
  height: 1px;
  background-color: #333533;
  margin-bottom: 2rem;
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: #828582;
}

/* REVEAL ANIMATIONS */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    max-width: 600px;
  }

  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .mobile-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-bg);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    transition: transform 0.4s ease;
    z-index: 999;
  }

  .main-nav.nav-open {
    transform: translateY(0);
  }

  .nav-cta {
    display: none;
  }

  .hero-title {
    font-size: 2.75rem;
  }

  .projects-list {
    gap: 4rem;
  }

  .project-item, .project-item.project-right {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .project-item.project-right .project-info {
    order: 2;
  }

  .project-item.project-right .project-visual {
    order: 1;
  }

  .service-item {
    grid-template-columns: 50px 1fr;
    padding: 1.75rem 0.5rem;
  }

  .service-item:hover {
    padding-left: 0.5rem;
  }

  .stats-grid, .trust-references {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-cols {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}