/* ========================================
   Agentcy.Services — Style.css
   Sovereign AI Infrastructure for Real Estate
   ======================================== */

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

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-card: #161616;
  --bg-hover: #1c1c1c;
  --border: #2a2a2a;
  --border-subtle: #1e1e1e;
  --text: #f0f0f0;
  --text-secondary: #999;
  --text-muted: #666;
  --accent: #ffffff;
  --accent-dim: #888;
  --max-width: 1200px;
  --section-gap: clamp(5rem, 12vw, 10rem);
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.1rem; }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--text);
  opacity: 0.7;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

section {
  padding: var(--section-gap) 0;
  position: relative;
}

.section-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  display: block;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav-logo span {
  color: var(--text-muted);
  font-weight: 400;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  font-size: 0.8rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: all var(--transition);
}

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

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

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 6rem);
  align-items: center;
}

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

.hero h1 {
  margin-bottom: 1.5rem;
  line-height: 1.08;
}

.hero-subhead {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

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

.hero-image {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

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

/* --- Buttons --- */
.btn-primary {
  display: inline-block;
  padding: 0.85rem 2.25rem;
  border: 1px solid var(--text);
  background: var(--text);
  color: var(--bg);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

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

.btn-secondary {
  display: inline-block;
  padding: 0.85rem 2.25rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

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

/* --- Section: Problem --- */
.problem-block {
  max-width: 750px;
}

.problem-block h2 {
  margin-bottom: 2rem;
}

.problem-block p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.comparison-table {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.comparison-col {
  padding: 2rem 0;
}

.comparison-col:first-child {
  border-right: 1px solid var(--border);
  padding-right: 2rem;
}

.comparison-col:last-child {
  padding-left: 2rem;
}

.comparison-col h4 {
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.comparison-row {
  padding: 0.7rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-row:last-child {
  border-bottom: none;
}

/* --- Section: Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  margin-top: 3rem;
}

.service-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: background var(--transition);
}

.service-card:hover {
  background: var(--bg-elevated);
}

.service-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* --- Section: How It Works --- */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: var(--border);
  margin-top: 3rem;
}

.step {
  background: var(--bg);
  padding: 2rem 1.5rem;
  position: relative;
}

.step-number {
  font-size: 3.5rem;
  font-weight: 200;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1rem;
}

.step h4 {
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- Section: Pricing --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  margin-top: 3rem;
}

.pricing-card {
  background: var(--bg);
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  transition: background var(--transition);
}

.pricing-card:hover {
  background: var(--bg-elevated);
}

.pricing-card.featured {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  margin: -1px;
}

.pricing-tier {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.pricing-name {
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 300;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.pricing-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.pricing-annual {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.pricing-setup {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex: 1;
}

.pricing-features li {
  padding: 0.45rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-card .btn-primary {
  margin-top: auto;
}

/* --- Add-Ons --- */
.addons {
  margin-top: 5rem;
}

.addons h3 {
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 400;
  color: var(--text-muted);
}

.addons-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
}

.addon-item {
  background: var(--bg);
  padding: 1.5rem;
  text-align: center;
}

.addon-name {
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.addon-price {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}

/* --- FAQ --- */
.faq {
  margin-top: 5rem;
  max-width: 800px;
}

.faq h3 {
  margin-bottom: 2.5rem;
  color: var(--text);
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.faq-q {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.faq-a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Case Studies --- */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  margin-top: 3rem;
}

.case-card {
  background: var(--bg);
  padding: 2.5rem;
}

.case-number {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.case-card h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.case-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.case-card p {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.case-roi {
  margin-top: 1.5rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}

.case-image {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.about-text {
  max-width: 640px;
}

.about-text h2 {
  margin-bottom: 2rem;
}

.about-text p {
  margin-bottom: 1.5rem;
}

.about-image {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
}

.contact-text h2 {
  margin-bottom: 1.5rem;
}

.contact-subhead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.contact-steps {
  list-style: none;
}

.contact-steps li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.contact-steps li span {
  color: var(--text-muted);
  font-size: 0.85rem;
  min-width: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--text);
}

.form-group textarea {
  resize: vertical;
  min-height: 90px;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E") no-repeat right center;
}

.form-group select option {
  background: var(--bg-card);
  color: var(--text);
}

.contact-image {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 5rem 0 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  max-width: 300px;
}

.footer-links h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

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

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

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom-links {
  display: flex;
  gap: 2rem;
}

.footer-bottom-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Image Placeholders --- */
.img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }
.mb-2 { margin-bottom: 2rem; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .case-studies-grid { grid-template-columns: 1fr; }
  .addons-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-image { max-width: 320px; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-image { max-width: 400px; display: none; }
  .comparison-table { grid-template-columns: 1fr; }
  .comparison-col:first-child { border-right: none; border-bottom: 1px solid var(--border); padding-right: 0; padding-bottom: 1rem; }
  .comparison-col:last-child { padding-left: 0; padding-top: 1rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    gap: 1.25rem;
  }
  .mobile-toggle { display: flex; }
  .nav-cta { display: none; }
  .steps { grid-template-columns: 1fr; }
  .addons-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { width: 100%; text-align: center; }
  section { padding: 4rem 0; }
  .pricing-card { padding: 2rem 1.5rem; }
  .service-card { padding: 2rem 1.5rem; }
  .case-card { padding: 2rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .pricing-amount { font-size: 2.5rem; }
}