/* SystemLogic.ai base styles */

:root {
  --sl-blue: #0094ff;
  --sl-blue-deep: #0169c9;
  --sl-blue-cyan: #2ecfff;
  --sl-bg-dark: #050b14;
  --sl-bg-darker: #02060d;
  --sl-bg-light: #f5f8ff;
  --sl-text-main: #f9fbff;
  --sl-text-muted: #a8b3c5;
  --sl-border-soft: #1d2633;
  --sl-radius-lg: 18px;
  --sl-radius-md: 12px;
  --sl-radius-sm: 8px;
  --sl-shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
  --sl-shadow-light: 0 12px 30px rgba(0, 0, 0, 0.2);
  --sl-nav-height: 72px;
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
  background: var(--sl-bg-dark);
  color: var(--sl-text-main);
  scroll-behavior: smooth;
}

/* Layout */

.sl-container {
  width: 100%;
  max-width: 1120px;
  padding: 0 1.5rem;
  margin: 0 auto;
}

.sl-section {
  padding: 6rem 0;
}

.sl-section-light {
  background: var(--sl-bg-light);
  color: #0b1220;
}

.sl-section-dark {
  background: radial-gradient(circle at top, #071426 0, #02050d 55%, #000 100%);
}

/* Header */

.sl-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sl-nav-height);
  z-index: 50;
  background: rgba(5, 11, 20, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.sl-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.sl-logo-img {
  height: 34px;
  width: auto;
  display: block;
}

.sl-logo-text span {
  color: var(--sl-blue);
}

.sl-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.9rem;
}

.sl-nav a {
  color: var(--sl-text-muted);
  text-decoration: none;
  transition: color 0.18s ease, opacity 0.18s ease;
}

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

.sl-nav-cta {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, rgba(0, 148, 255, 0.15), rgba(1, 105, 201, 0.02));
  color: var(--sl-text-main);
}

/* Mobile nav toggle */

.sl-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.sl-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--sl-text-main);
  border-radius: 999px;
}

/* Hero */

.sl-hero {
  min-height: 100vh;
  padding-top: calc(var(--sl-nav-height) + 4rem);
  background: radial-gradient(circle at top, #071426 0, #02050d 55%, #000 100%);
  color: var(--sl-text-main);
}

.sl-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.sl-hero-copy h1 {
  font-size: clamp(2.5rem, 4vw, 3.4rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.sl-hero-copy p {
  max-width: 34rem;
  color: var(--sl-text-muted);
  font-size: 0.98rem;
}

.sl-hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.sl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.14s ease, box-shadow 0.14s ease, background 0.14s ease, border-color 0.14s ease;
}

.sl-btn-primary {
  background: linear-gradient(135deg, var(--sl-blue), var(--sl-blue-deep));
  color: white;
  box-shadow: var(--sl-shadow-soft);
}

.sl-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.sl-btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--sl-text-main);
}

.sl-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Hero visual */

.sl-hero-visual {
  display: flex;
  justify-content: flex-end;
}

.sl-hero-card {
  width: 100%;
  max-width: 320px;
  padding: 1.6rem 1.4rem;
  border-radius: var(--sl-radius-lg);
  background: radial-gradient(circle at top left, rgba(0, 148, 255, 0.3), #020712 70%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--sl-shadow-soft);
}

.sl-hero-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.sl-hero-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  color: var(--sl-text-muted);
}

.sl-hero-card li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0;
}

.sl-hero-card li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--sl-blue), var(--sl-blue-cyan));
}

/* Section headers */

.sl-section-header {
  margin-bottom: 2.5rem;
}

.sl-section-header h2 {
  font-size: 1.8rem;
  margin-bottom: 0.4rem;
}

.sl-section-header p {
  color: var(--sl-text-muted);
  max-width: 32rem;
}

.sl-section-header-center {
  text-align: center;
}

.sl-section-header-center p {
  margin: 0 auto;
}

/* Grid */

.sl-grid {
  display: grid;
  gap: 1.6rem;
}

.sl-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Cards */

.sl-card {
  padding: 1.4rem 1.3rem;
  border-radius: var(--sl-radius-md);
  background: rgba(3, 9, 20, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--sl-shadow-light);
}

.sl-section-light .sl-card {
  background: white;
  border-color: rgba(15, 23, 42, 0.08);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.08);
}

.sl-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.sl-card p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--sl-text-muted);
}

.sl-card-outline {
  background: transparent;
  border-style: dashed;
}

/* Parallax sections */

.sl-parallax {
  position: relative;
  background-attachment: fixed;
  background-size: cover;
  background-position: center center;
}

.sl-parallax::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(0, 148, 255, 0.25), rgba(0, 0, 0, 0.9) 55%);
  mix-blend-mode: soft-light;
}

.sl-parallax > * {
  position: relative;
  z-index: 1;
}

.sl-parallax-secondary {
  background-image: url("https://images.pexels.com/photos/373543/pexels-photo-373543.jpeg?auto=compress&cs=tinysrgb&w=1600");
}

.sl-parallax-inner {
  text-align: center;
  max-width: 640px;
}

.sl-parallax-inner h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.sl-parallax-inner p {
  color: var(--sl-text-muted);
}

/* About */

.sl-about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 2.4rem;
  align-items: center;
}

.sl-about-stats {
  display: grid;
  gap: 1rem;
}

.sl-stat {
  padding: 1.1rem 1rem;
  border-radius: var(--sl-radius-md);
  background: white;
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
}

.sl-stat-number {
  display: block;
  font-weight: 700;
  font-size: 1.2rem;
}

.sl-stat-label {
  font-size: 0.8rem;
  color: #64748b;
}

/* Contact */

.sl-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.2fr);
  gap: 2.2rem;
  align-items: flex-start;
}

.sl-form {
  padding: 1.6rem 1.4rem;
  border-radius: var(--sl-radius-lg);
  background: rgba(5, 11, 20, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--sl-shadow-soft);
}

.sl-form-row {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.sl-form-row label {
  font-size: 0.8rem;
  margin-bottom: 0.3rem;
  color: var(--sl-text-muted);
}

.sl-form-row input,
.sl-form-row textarea {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: #020610;
  color: var(--sl-text-main);
  padding: 0.65rem 0.7rem;
  font-size: 0.9rem;
  outline: none;
}

.sl-form-row input:focus,
.sl-form-row textarea:focus {
  border-color: var(--sl-blue);
  box-shadow: 0 0 0 1px rgba(0, 148, 255, 0.3);
}

.sl-form-note {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--sl-text-muted);
}

.sl-form-note a {
  color: var(--sl-blue-cyan);
}

/* Footer */

.sl-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  background: #02050b;
  padding: 1rem 0;
}

.sl-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--sl-text-muted);
}

/* Scroll to top button */

.sl-scroll-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--sl-blue), var(--sl-blue-deep));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--sl-shadow-soft);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 40;
}

.sl-scroll-top-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Responsive */

@media (max-width: 960px) {
  .sl-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .sl-hero-visual {
    justify-content: flex-start;
  }
  .sl-grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .sl-about-grid,
  .sl-contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .sl-header {
    background: rgba(5, 11, 20, 0.98);
  }

  .sl-nav {
    position: absolute;
    top: var(--sl-nav-height);
    right: 0;
    left: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(5, 11, 20, 0.98);
    padding: 0.4rem 1.5rem 0.6rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.22s ease;
  }

  .sl-nav a {
    padding: 0.35rem 0;
  }

  .sl-nav-open .sl-nav {
    max-height: 180px;
  }

  .sl-nav-toggle {
    display: flex;
  }

  .sl-hero {
    padding-top: calc(var(--sl-nav-height) + 3rem);
  }

  .sl-grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .sl-footer-inner {
    flex-direction: column;
    gap: 0.4rem;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .sl-hero-card {
    max-width: 100%;
  }
}