/* Pragathi Constructions — Design System */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-surface: #ffffff;
  --color-dark: #121212;
  --color-dark-soft: #1e293b;
  --color-accent: #1e40af;
  --color-accent-hover: #1e3a8a;
  --color-accent-muted: #eab308;
  --color-text: #334155;
  --color-text-muted: #64748b;
  --color-border: #cbd5e1;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-display: 'Instrument Serif', Georgia, serif;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* Typography */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.65rem); }

p + p { margin-top: 1rem; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-muted);
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 52ch;
}

/* Layout */

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-dark);
  color: #e8e6e1;
}

.section--dark h2,
.section--dark h3 {
  color: #f7f5f0;
}

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--color-dark);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.logo-mark span {
  color: var(--color-accent-muted);
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-dark);
}

.logo-tagline {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent-muted);
  transition: width var(--transition);
}

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

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-accent-muted);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  background: var(--color-accent-muted);
  color: var(--color-dark) !important;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 100px;
  transition: background var(--transition);
}

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

.nav-cta:hover {
  background: #facc15;
}

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

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  transition: var(--transition);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}

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

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

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border: 1.5px solid var(--color-dark);
}

.btn--outline:hover {
  background: var(--color-dark);
  color: #f7f5f0;
}

.btn--light {
  background: #fde047;
  color: var(--color-accent);
  border: 1px solid #fde047;
  font-weight: 700;
}

.btn--light:hover {
  background: var(--color-dark);
  color: #fde047;
  border-color: var(--color-dark);
}

/* Hero */

.hero {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 0;
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
}

.hero-content {
  padding-bottom: 4rem;
}

.hero h1 {
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-visual {
  position: relative;
  height: 75vh;
  min-height: 480px;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(28,28,26,0.15) 0%, transparent 50%);
  z-index: 1;
}

.hero-badge {
  position: absolute;
  bottom: 2rem;
  left: -2rem;
  background: var(--color-surface);
  padding: 1.25rem 1.5rem;
  z-index: 2;
  border-left: 3px solid var(--color-accent);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.hero-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-dark);
  line-height: 1;
}

.hero-badge span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Stats bar */

.stats-bar {
  background: var(--color-dark);
  padding-block: 2.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-accent-muted);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-item span {
  font-size: 0.8125rem;
  color: #a8a6a0;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Section headers */

.section-header {
  margin-bottom: 3.5rem;
}

.section-header--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: end;
}

.section-header h2 {
  margin-top: 0.5rem;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.card-image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-image img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  margin-bottom: 0.5rem;
}

.card-body p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.card-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

/* Service cards */

.service-card {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  position: relative;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--color-accent);
  transition: height var(--transition);
}

.service-card:hover::before {
  height: 100%;
}

.service-number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-bg-alt);
  line-height: 1;
  margin-bottom: 1rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Two column layout */

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

.split-layout--reverse .split-image {
  order: -1;
}

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

.split-content .eyebrow {
  margin-bottom: 0.5rem;
}

.split-content h2 {
  margin-bottom: 1.25rem;
}

.feature-list {
  margin-top: 2rem;
}

.feature-list li {
  display: flex;
  gap: 0.75rem;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.feature-list li::before {
  content: '—';
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Testimonial */

.testimonial-block {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.testimonial-block blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-style: italic;
  color: #e8e6e1;
  line-height: 1.4;
  margin-bottom: 2rem;
}

.testimonial-block cite {
  font-style: normal;
  font-size: 0.875rem;
  color: #a8a6a0;
}

.testimonial-block cite strong {
  display: block;
  color: var(--color-accent-muted);
  font-weight: 600;
  margin-bottom: 0.15rem;
}

/* CTA band */

.cta-band {
  background: var(--color-accent);
  padding-block: 4rem;
  text-align: center;
}

.cta-band h2 {
  color: #fde047;
  margin-bottom: 0.75rem;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 48ch;
  margin-inline: auto;
}

/* Page header (inner pages) */

.page-hero {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  margin-top: 0.75rem;
  max-width: 16ch;
}

.page-hero .lead {
  margin-top: 1.25rem;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb span {
  color: var(--color-text-muted);
}

/* About page */

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.team-member {
  text-align: center;
}

.team-member img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  margin-bottom: 1rem;
  filter: grayscale(20%);
}

.team-member h3 {
  font-size: 1.1rem;
  margin-bottom: 0.15rem;
}

.team-member span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translateX(-4px);
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.timeline-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.timeline-item p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

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

.value-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.value-item p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Services page */

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  counter-reset: step;
}

.process-step {
  padding: 2rem 1.5rem;
  border: 1px solid var(--color-border);
  margin-left: -1px;
  position: relative;
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-bg-alt);
  display: block;
  margin-bottom: 1rem;
}

.process-step h3 {
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Projects page */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  background: transparent;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-dark);
  color: #f7f5f0;
  border-color: var(--color-dark);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(28,28,26,0.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.75rem;
  color: #f7f5f0;
}

.project-overlay .card-tag {
  color: var(--color-accent-muted);
}

.project-overlay h3 {
  color: #f7f5f0;
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}

.project-overlay p {
  font-size: 0.8125rem;
  color: #c8c6c0;
}

.project-card--large {
  grid-column: span 2;
  aspect-ratio: 21/9;
}

/* Contact page */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-block {
  padding: 2rem;
  background: var(--color-dark);
  color: #e8e6e1;
}

.contact-info-block h3 {
  color: #f7f5f0;
  margin-bottom: 1.5rem;
}

.contact-detail {
  margin-bottom: 1.75rem;
}

.contact-detail strong {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-muted);
  margin-bottom: 0.35rem;
}

.contact-detail p,
.contact-detail a {
  font-size: 0.9375rem;
  color: #e8e6e1;
}

.contact-detail a:hover {
  color: var(--color-accent-muted);
}

.contact-form {
  display: grid;
  gap: 1.25rem;
}

.google-form-embed {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.google-form-embed iframe {
  width: 100%;
  min-height: 920px;
  border: 0;
  display: block;
}

.google-form-embed iframe[hidden] {
  display: none;
}

.google-form-setup {
  padding: 2.5rem 2rem;
  text-align: center;
}

.google-form-setup h3 {
  margin-bottom: 0.75rem;
}

.google-form-setup p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 40ch;
  margin-inline: auto;
  margin-bottom: 1.5rem;
}

.google-form-setup .google-form-setup-note {
  font-size: 0.8125rem;
  font-style: italic;
}

.google-form-fallback {
  text-align: center;
  padding: 0.85rem 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.google-form-fallback a {
  color: var(--color-accent);
  font-weight: 600;
}

.google-form-fallback a:hover {
  text-decoration: underline;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-dark);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.map-placeholder {
  width: 100%;
  height: 320px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: grid;
  place-items: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.map-placeholder iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Footer */

.site-footer {
  background: var(--color-dark-soft);
  color: #ffffff;
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-name {
  color: #f7f5f0;
}

.footer-brand .logo-tagline {
  color: #6b6b65;
}

.footer-brand p {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 32ch;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #f7f5f0;
  margin-bottom: 1.25rem;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  font-size: 0.875rem;
  color: #ffffff;
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 1.5rem;
  font-size: 0.8125rem;
}

/* Utility */

.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }

/* Responsive */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    height: 50vh;
    min-height: 320px;
  }

  .hero-badge {
    left: 1rem;
    bottom: 1rem;
  }

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

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

  .split-layout,
  .section-header--split,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .split-layout--reverse .split-image {
    order: 0;
  }

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

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

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-dark-soft);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .main-nav a {
    padding: 0.85rem 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .main-nav .nav-cta {
    margin-top: 1rem;
    justify-content: center;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .card-grid,
  .team-grid,
  .values-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card--large {
    grid-column: span 1;
    aspect-ratio: 16/10;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

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

@keyframes ticker-animation {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0);
  }
}