/* ===================================
   Ouroboros Group — Main Stylesheet
   =================================== */

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

:root {
  --color-bg: #0d0d0d;
  --color-bg-alt: #141414;
  --color-bg-card: #1a1a1a;
  --color-surface: #222222;
  --color-gold: #c9a84c;
  --color-gold-light: #e0c76a;
  --color-gold-dim: #9a7b2e;
  --color-text: #e8e8e8;
  --color-text-muted: #999999;
  --color-text-subtle: #666666;
  --color-border: #2a2a2a;
  --color-white: #ffffff;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container-max: 1140px;
  --transition: 0.3s ease;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--color-gold-light);
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background-color var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background-color: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
  padding: 10px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.nav-logo:hover {
  color: var(--color-white);
}

.nav-logo-img {
  width: 36px;
  height: 36px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

.nav-cta {
  background-color: var(--color-gold);
  color: var(--color-bg) !important;
  padding: 8px 20px;
  border-radius: 4px;
  font-weight: 600;
}

.nav-cta:hover {
  background-color: var(--color-gold-light) !important;
  color: var(--color-bg) !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: 2px;
  background-color: var(--color-white);
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(201, 168, 76, 0.06) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-logo {
  width: 180px;
  height: 180px;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.hero-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 400;
  color: var(--color-white);
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.hero-slogan {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto 48px;
}

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

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-transform: uppercase;
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-bg);
  border-color: var(--color-gold);
}

.btn-primary:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-bg);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-outline:hover {
  background-color: var(--color-gold);
  color: var(--color-bg);
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* --- Sections --- */
.section {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-white);
  letter-spacing: 0.03em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* --- About --- */
.about {
  background-color: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.about-text em {
  color: var(--color-gold);
  font-style: italic;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.stat {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  transition: border-color var(--transition);
}

.stat:hover {
  border-color: var(--color-gold-dim);
}

.stat-icon {
  color: var(--color-gold);
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-white);
  margin-bottom: 4px;
}

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

/* --- Solutions --- */
.solutions {
  background-color: var(--color-bg-alt);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.solution-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 40px 32px;
  transition: border-color var(--transition), transform var(--transition);
}

.solution-card:hover {
  border-color: var(--color-gold-dim);
  transform: translateY(-4px);
}

.solution-icon {
  width: 48px;
  height: 48px;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.solution-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-white);
  margin-bottom: 12px;
  font-weight: 400;
}

.solution-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* --- Approach --- */
.approach {
  background-color: var(--color-bg);
}

.approach-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
}

.approach-step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--color-gold);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 16px;
}

.approach-step h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-white);
  font-weight: 400;
  margin-bottom: 12px;
}

.approach-step p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.approach-connector {
  width: 40px;
  min-width: 40px;
  height: 2px;
  background: linear-gradient(to right, var(--color-gold-dim), var(--color-gold));
  align-self: center;
  margin-top: -40px;
  opacity: 0.3;
}

/* --- Industries --- */
.industries {
  background-color: var(--color-bg-alt);
}

.industries-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}

.industry-tag {
  padding: 12px 28px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 40px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
  cursor: default;
}

.industry-tag:hover {
  border-color: var(--color-gold-dim);
  color: var(--color-gold);
}

.industries-note {
  text-align: center;
  color: var(--color-text-subtle);
  font-size: 0.95rem;
}

/* --- Contact --- */
.contact {
  background-color: var(--color-bg);
}

.contact-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 72px;
  align-items: start;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition);
}

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

.form-group textarea {
  resize: vertical;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 36px;
  padding-top: 8px;
}

.contact-info-block h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-white);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.contact-info-block p {
  color: var(--color-text-muted);
  font-size: 1rem;
}

.contact-info-block.quote {
  padding: 28px;
  background-color: var(--color-bg-card);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 6px 6px 0;
}

.contact-info-block.quote p {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.7;
}

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

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-white);
}

.footer-logo {
  width: 28px;
  height: 28px;
}

.footer-tagline {
  color: var(--color-text-subtle);
  font-size: 0.9rem;
  font-style: italic;
}

.footer-copy {
  color: var(--color-text-subtle);
  font-size: 0.8rem;
  margin-top: 8px;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 960px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .approach-steps {
    flex-direction: column;
    gap: 40px;
  }

  .approach-connector {
    width: 2px;
    height: 40px;
    min-width: unset;
    align-self: center;
    margin-top: 0;
    background: linear-gradient(to bottom, var(--color-gold-dim), var(--color-gold));
  }
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2.4rem;
  }

  .hero-slogan {
    font-size: 1.05rem;
  }

  .hero-logo {
    width: 130px;
    height: 130px;
  }

  .section {
    padding: 80px 0;
  }

  .section-header h2 {
    font-size: 2rem;
  }

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

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

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: rgba(13, 13, 13, 0.98);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    text-align: center;
  }

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

  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }
}