/* ============================================================
   Abstract Core — Homepage Stylesheet
   Color Palette: Deep Espresso / Copper / Moss / Warm Cream
   ============================================================ */

:root {
  --color-dark: #1C1814;
  --color-copper: #C4744A;
  --color-copper-hover: #B0653D;
  --color-copper-light: #E8A07A;
  --color-moss: #6F8A72;
  --color-moss-dark: #5B7560;
  --color-cream: #FDF8F4;
  --color-warm-white: #FFFDF9;
  --color-text: #2D2620;
  --color-text-muted: #7A7068;
  --color-charcoal: #3D3228;
  --color-border: #E8E0D8;
  --color-card-bg: #FFFCF8;
  --color-hero-overlay: rgba(28, 24, 20, 0.72);
  --shadow-sm: 0 1px 3px rgba(28, 24, 20, 0.08);
  --shadow-md: 0 4px 16px rgba(28, 24, 20, 0.10);
  --shadow-lg: 0 8px 32px rgba(28, 24, 20, 0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: 0.28s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  background-color: var(--color-cream);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   SITE NAVIGATION (class selector — NEVER bare nav)
   ============================================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 248, 244, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-nav.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(253, 248, 244, 0.98);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-dark);
  text-decoration: none;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand .brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-copper);
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-copper);
  transition: width var(--transition);
  border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-copper);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--color-copper);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav-cta:hover {
  background: var(--color-copper-hover);
}

.nav-cta::after {
  display: none !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-charcoal) 50%, #252018 100%);
  overflow: hidden;
  padding: 120px 28px 80px;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(111, 138, 114, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-section::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(196, 116, 74, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-warm-white);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-content h1 .highlight {
  color: var(--color-copper);
  display: inline;
}

.hero-content .hero-subtitle {
  font-size: 1.15rem;
  color: #FDF8F4;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-copper);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.975rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-copper-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-warm-white);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.975rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(253, 248, 244, 0.30);
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-copper);
  color: var(--color-copper);
  transform: translateY(-2px);
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-stack {
  position: relative;
  width: 320px;
  height: 360px;
}

.hero-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform var(--transition);
}

.hero-card:nth-child(1) {
  top: 0;
  left: 0;
  width: 200px;
  height: 200px;
  z-index: 3;
}

.hero-card:nth-child(2) {
  top: 40px;
  left: 60px;
  width: 220px;
  height: 220px;
  z-index: 2;
}

.hero-card:nth-child(3) {
  top: 120px;
  left: 20px;
  width: 180px;
  height: 180px;
  z-index: 1;
}

.hero-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.hero-card .card-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-warm-white);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ============================================================
   SECTION COMMON (class selectors — never bare IDs)
   ============================================================ */
.home-page section {
  padding: 96px 28px;
}

.home-page .section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-copper);
  margin-bottom: 12px;
}

.home-page .section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.home-page .section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-desc {
  margin: 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
  background: var(--color-cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-content .section-label {
  margin-bottom: 12px;
}

.about-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.about-content p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 28px;
}

.about-stat {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.about-stat .stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-copper);
  line-height: 1.2;
}

.about-stat .stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-card-group {
  position: relative;
  width: 100%;
  max-width: 420px;
}

.about-card {
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.about-card .about-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.about-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.about-card ul {
  list-style: none;
  padding: 0;
}

.about-card ul li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.about-card ul li:last-child {
  border-bottom: none;
}

.about-card ul li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-moss);
  flex-shrink: 0;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-section {
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

.services-section::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -20%;
  width: 80%;
  height: 180%;
  background: radial-gradient(ellipse at center, rgba(111, 138, 114, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

.services-section .section-label {
  color: var(--color-copper-light);
}

.services-section .section-title {
  color: var(--color-warm-white);
}

.services-section .section-desc {
  color: #FDF8F4;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.service-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
  border: 1px solid rgba(196, 116, 74, 0.30);
}

.service-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-warm-white);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.925rem;
  color: #FDF8F4;
  line-height: 1.65;
}

/* ============================================================
   APPROACH SECTION
   ============================================================ */
.approach-section {
  background: var(--color-warm-white);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.approach-item {
  padding: 32px 24px;
}

.approach-number {
  font-size: 3rem;
  font-weight: 800;
  color: #EFD7C9;
  line-height: 1;
  margin-bottom: 12px;
}

.approach-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.approach-item p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   STATS COUNTER SECTION
   ============================================================ */
.stats-section {
  background: var(--color-copper);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(28, 24, 20, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
  text-align: center;
}

.stats-grid .stat-item {
  padding: 24px;
}

.stat-value {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-warm-white);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.stat-desc {
  font-size: 0.9rem;
  color: #FEF9F3;
  margin-top: 6px;
  font-weight: 500;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
  background: var(--color-cream);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact-info h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.contact-info p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.contact-detail .detail-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(111, 138, 114, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-form-wrap {
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-warm-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-copper);
  box-shadow: 0 0 0 3px rgba(196, 116, 74, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  margin-top: 4px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
  color: var(--color-moss-dark);
  font-weight: 600;
  font-size: 1.1rem;
}

.form-success.visible {
  display: block;
}

.form-error {
  display: none;
  color: #C44040;
  font-size: 0.9rem;
  margin-top: 8px;
}

.form-error.visible {
  display: block;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  padding: 64px 28px 40px;
  color: #FDF8F4;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-warm-white);
  margin-bottom: 10px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-warm-white);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #FDF8F4;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-copper);
}

.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content .hero-subtitle {
    margin: 0 auto 32px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .approach-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .home-page section {
    padding: 64px 20px;
  }

  .hero-section {
    min-height: auto;
    padding: 100px 20px 64px;
  }

  .hero-content h1 {
    font-size: 2.2rem;
  }

  .home-page .section-title {
    font-size: 1.8rem;
  }

  .about-content h2 {
    font-size: 1.7rem;
  }

  .contact-info h2 {
    font-size: 1.7rem;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-warm-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 28px 28px;
    box-shadow: var(--shadow-lg);
    transition: right 0.35s ease;
    gap: 24px;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }

  .home-page .section-title {
    font-size: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}