/* ========================================
   ORCHER AI — OpenClaw-inspired Design
   ======================================== */

:root {
  /* Dark theme (default) */
  --bg-primary: #0d0d0d;
  --bg-secondary: #161616;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --text-primary: #e8e8e8;
  --text-secondary: #999999;
  --text-muted: #666666;
  --accent: #c45a1c;
  --accent-hover: #d9712f;
  --accent-glow: rgba(196, 90, 28, 0.12);
  --border: #1e1e1e;
  --border-hover: #2a2a2a;
  --code-bg: #111111;
  --code-border: #333333;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 4px 24px rgba(0, 0, 0, 0.6);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #f0f0f0;
  --bg-card: #ffffff;
  --bg-card-hover: #f5f5f5;
  --text-primary: #1a1a1a;
  --text-secondary: #444444;
  --text-muted: #777777;
  --accent: #a84b15;
  --accent-hover: #c45a1c;
  --accent-glow: rgba(168, 75, 21, 0.1);
  --border: #e0e0e0;
  --border-hover: #cccccc;
  --code-bg: #f5f5f5;
  --code-border: #e0e0e0;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 24px rgba(0, 0, 0, 0.12);
}

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

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

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

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

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

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

/* ========== Layout ========== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

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

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

[data-theme="light"] .header {
  background: rgba(250, 250, 250, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.12em;
  font-family: 'Outfit', sans-serif;
}

.logo-icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.5;
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* ========== Hero ========== */
.hero {
  padding-top: 120px;
  padding-bottom: 32px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(196, 90, 28, 0.25);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.4rem, 3.2vw, 2.5rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--text-primary);
  white-space: nowrap;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-primary);
  max-width: 640px;
  margin: 0 auto 20px;
  line-height: 1.5;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-primary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-integrations {
  margin-top: 56px;
}

.hero-integrations .integrations-cloud {
  margin-top: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(196, 90, 28, 0.25);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* ========== Features Grid ========== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.feature-icon {
  margin-bottom: 16px;
  display: block;
  color: var(--accent);
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  stroke-width: 1.5;
}

.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ========== Quick Start ========== */
.quickstart-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.quickstart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}

.quickstart-card:hover {
  border-color: var(--border-hover);
}

.quickstart-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.quickstart-card .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', Consolas, monospace;
  font-size: 0.88rem;
  color: var(--accent);
  overflow-x: auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.code-block code {
  white-space: nowrap;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.copy-btn:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

/* ========== Testimonials ========== */
.testimonials-grid {
  columns: 3;
  column-gap: 20px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  break-inside: avoid;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-hover);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  overflow: hidden;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.92rem;
}

.testimonial-handle {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.testimonial-card blockquote {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ========== Integrations ========== */
.integrations-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.integration-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 10px 22px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.integration-tag svg {
  width: 16px;
  height: 16px;
  stroke-width: 1.5;
}

.integration-tag img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.integration-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.integrations-count {
  text-align: center;
  margin-top: 32px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ========== CTA Section ========== */
.cta-section {
  text-align: center;
  padding: 100px 0;
}

.cta-section h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== Newsletter ========== */
.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}

.newsletter-form input::placeholder {
  color: var(--text-muted);
}

.newsletter-form input:focus {
  border-color: var(--accent);
}

/* ========== Footer ========== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 32px;
}

.footer-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  stroke-width: 1.5;
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger animation for grid items */
.feature-card:nth-child(1) { transition-delay: 0.05s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.15s; }
.feature-card:nth-child(4) { transition-delay: 0.2s; }
.feature-card:nth-child(5) { transition-delay: 0.25s; }
.feature-card:nth-child(6) { transition-delay: 0.3s; }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-links {
    gap: 40px;
  }

  .nav {
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .header {
    position: sticky;
  }

  .hero {
    padding-top: 80px;
    padding-bottom: 32px;
  }

  .hero h1 {
    white-space: normal;
    font-size: 1.35rem;
    line-height: 1.3;
  }

  .hero-tagline {
    font-size: 0.92rem;
  }

  .section {
    padding: 48px 0;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .header-inner {
    height: 52px;
  }

  .container {
    padding: 0 16px;
    max-width: 100%;
  }

  .integrations-cloud {
    gap: 8px;
    overflow: hidden;
  }

  .integration-tag {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .feature-card h3 {
    font-size: 1.1rem;
  }

  .steps {
    max-width: 100%;
  }

  .step {
    gap: 16px;
    padding: 18px 0;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .cta-section {
    padding: 60px 0;
  }

  .cta-section h2 {
    font-size: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 24px;
  }

  .footer-contact {
    flex-direction: column;
    gap: 12px;
  }

  .footer-links {
    flex-direction: column;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .nav a:not(.theme-toggle-wrapper) {
    display: none;
  }

  .mobile-menu-btn {
    display: none;
  }

  .nav.open a {
    display: block;
  }

  .manifesto-body p {
    font-size: 1.05rem;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 0.95rem;
  }

  .modal {
    padding: 28px 20px;
    margin: 16px;
  }
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ========== Features Summary ========== */
.features-summary {
  text-align: center;
  margin-top: 48px;
  font-size: 1.3rem;
  color: var(--text-secondary);
}

.features-summary strong {
  color: var(--accent);
}

/* ========== Use Cases ========== */
.use-cases {
  margin-top: 64px;
  text-align: center;
}

.use-cases h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 32px;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: all var(--transition);
}

.use-case-card:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-2px);
}

.use-case-icon {
  color: var(--accent);
}

.use-case-icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.5;
}

.use-case-label {
  font-size: 1rem;
  font-weight: 600;
}

/* ========== Manifesto / Why & USP ========== */
.manifesto {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.manifesto h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}

.manifesto-body p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}

.manifesto-body strong {
  color: var(--text-primary);
}

.manifesto-punch {
  margin-top: 24px !important;
  font-size: 1.4rem !important;
  color: var(--accent) !important;
  font-weight: 600;
}

/* ========== Steps / How It Works ========== */
.steps {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.step:last-child {
  border-bottom: none;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.steps-footer {
  text-align: center;
  margin-top: 40px;
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ========== Nav Button in Header ========== */
.btn-nav {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* ========== Large Buttons ========== */
.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ========== Contact Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 24px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 480px;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group .optional {
  color: var(--text-muted);
  font-weight: 400;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

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

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.btn-full {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

.modal-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 0;
}

.success-icon {
  color: #22c55e;
  margin-bottom: 16px;
}

.success-icon svg {
  width: 56px;
  height: 56px;
  stroke-width: 1.5;
}

.modal-success h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: #22c55e;
  margin-bottom: 8px;
}

.modal-success p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .modal {
    padding: 28px 20px;
  }
}

/* ========== Selection ========== */
::selection {
  background: var(--accent);
  color: #ffffff;
}