/*
  Olatus Construction - Seelach Design System
  Industrial-Modern Dark Theme
*/

/* ==================== CSS Variables ==================== */
:root {
  /* Dark Colors */
  --color-black: #0a0a0a;
  --color-charcoal: #1a1a1a;
  --color-charcoal-light: #2a2a2a;
  --color-steel: #3a3a3a;
  --color-steel-light: #6a6a6a;

  /* Accent Colors */
  --color-yellow: #FDB813;
  --color-yellow-bright: #FFBF00;
  --color-blue: #00A3E0;

  /* Neutral */
  --color-concrete: #8a8a8a;
  --color-concrete-light: #d0d0d0;
  --color-white: #ffffff;

  /* Typography */
  --font-display: 'Bebas Neue', 'Arial Black', sans-serif;
  --font-body: 'Space Grotesk', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-width: 1400px;
  --max-width-wide: 1600px;

  /* Effects */
  --shadow-hard: 0 4px 0 rgba(253, 184, 19, 0.3);
  --shadow-glow: 0 0 20px rgba(253, 184, 19, 0.2);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition: 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-concrete-light);
  background-color: var(--color-black);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.9;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(4rem, 10vw, 8rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h4 {
  font-size: 1.25rem;
  letter-spacing: 0.1em;
}

p {
  margin-bottom: var(--space-md);
}

strong {
  font-weight: 700;
  color: var(--color-white);
}

/* ==================== Navigation ==================== */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-steel);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-white);
  letter-spacing: 0.1em;
}

.brand-icon {
  color: var(--color-yellow);
  font-size: 1.25rem;
}

.brand-text {
  line-height: 1.2;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-concrete);
  letter-spacing: 0.1em;
  position: relative;
  padding: var(--space-xs) 0;
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-white);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-yellow);
  transition: width var(--transition-fast);
}

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

.nav-link-cta {
  background: var(--color-yellow);
  color: var(--color-black);
  padding: var(--space-xs) var(--space-md);
  font-weight: 700;
  transition: var(--transition-fast);
}

.nav-link-cta::after {
  display: none;
}

.nav-link-cta:hover {
  background: var(--color-yellow-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-yellow);
  transition: var(--transition-fast);
}

/* ==================== Buttons ==================== */
.btn-primary,
.btn-secondary,
.btn-outline,
.btn-text {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
  border-radius: 2px;
  transition: var(--transition-fast);
  text-align: center;
  cursor: pointer;
  letter-spacing: 0.1em;
}

.btn-primary {
  background: var(--color-yellow);
  color: var(--color-black);
  font-weight: 700;
  box-shadow: var(--shadow-hard);
}

.btn-primary:hover {
  background: var(--color-yellow-bright);
  transform: translateY(-3px);
  box-shadow: 0 6px 0 rgba(253, 184, 19, 0.3), var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-steel-light);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-yellow);
  border: 2px solid var(--color-yellow);
  padding: 0.875rem 2.5rem;
}

.btn-outline:hover {
  background: var(--color-yellow);
  color: var(--color-black);
}

.btn-text {
  padding: 0;
  color: var(--color-yellow);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
}

.btn-text:hover {
  color: var(--color-yellow-bright);
}

/* ==================== Hero Section ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--color-charcoal);
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-charcoal) 50%, var(--color-steel) 100%);
  opacity: 0.8;
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 49px, var(--color-steel) 49px, var(--color-steel) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 49px, var(--color-steel) 49px, var(--color-steel) 50px);
  opacity: 0.1;
}

.hero-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  background: var(--color-steel);
  color: var(--color-yellow);
  font-family: var(--font-display);
  padding: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.2em;
  border-left: 4px solid var(--color-yellow);
}

.hero-heading {
  margin-bottom: var(--space-lg);
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

.tagline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--color-concrete-light);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xl);
  line-height: 1.4;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  padding-top: var(--space-xl);
  border-top: 2px solid var(--color-steel);
}

.stat {
  position: relative;
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--color-yellow);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-concrete);
  letter-spacing: 0.15em;
}

.stat-bar {
  width: 60%;
  height: 3px;
  background: var(--color-yellow);
  margin-top: var(--space-xs);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-concrete);
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
}

.scroll-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-yellow) 0%, transparent 100%);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ==================== Section Styling ==================== */
section {
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
}

.section-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-yellow);
  letter-spacing: 0.2em;
  margin-bottom: var(--space-md);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* ==================== Capabilities Section ==================== */
.capabilities {
  background: var(--color-charcoal);
  position: relative;
}

.capabilities::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-yellow) 50%, transparent 100%);
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.capability-card {
  background: var(--color-charcoal-light);
  padding: var(--space-xl);
  border: 1px solid var(--color-steel);
  position: relative;
  transition: var(--transition);
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: var(--color-yellow);
  transition: width var(--transition);
}

.capability-card:hover {
  border-color: var(--color-yellow);
  transform: translateY(-8px);
}

.capability-card:hover::before {
  width: 100%;
}

.card-number {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-steel-light);
  line-height: 1;
  margin-bottom: var(--space-md);
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  opacity: 0.3;
}

.card-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-yellow);
  margin-bottom: var(--space-lg);
  transition: var(--transition);
}

.capability-card:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
}

.capability-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

.capability-card p {
  color: var(--color-concrete);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.card-accent {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: var(--color-yellow);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0;
  transition: var(--transition);
}

.capability-card:hover .card-accent {
  opacity: 1;
}

/* ==================== Projects Section ==================== */
.projects {
  background: var(--color-black);
  padding: var(--space-3xl) var(--space-lg);
}

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

.projects-grid {
  max-width: var(--max-width-wide);
  margin: 0 auto var(--space-2xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: var(--space-xl);
}

.project-card {
  background: var(--color-charcoal);
  border: 1px solid var(--color-steel);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.project-card:hover {
  border-color: var(--color-yellow);
  transform: translateY(-8px);
}

.project-image {
  width: 100%;
  height: 300px;
  position: relative;
  overflow: hidden;
  background: var(--color-charcoal-light);
}

.project-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-steel-light);
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--color-steel) 0%, var(--color-charcoal) 100%);
}

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  background: linear-gradient(180deg, transparent 0%, rgba(10, 10, 10, 0.9) 100%);
}

.project-type {
  display: inline-block;
  background: var(--color-yellow);
  color: var(--color-black);
  font-family: var(--font-display);
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.project-info {
  padding: var(--space-lg);
}

.project-info h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.project-specs {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-concrete);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
}

.spec-divider {
  color: var(--color-steel-light);
}

.project-info p {
  color: var(--color-concrete);
  margin: 0;
  line-height: 1.6;
}

/* ==================== Strength Section ==================== */
.strength {
  background: var(--color-charcoal);
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
}

.strength::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-yellow) 50%, transparent 100%);
}

.strength-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.strength-intro {
  font-size: 1.2rem;
  color: var(--color-concrete);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.strength-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.strength-point {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.point-icon {
  width: 40px;
  height: 40px;
  background: var(--color-yellow);
  color: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  font-weight: 700;
}

.point-content h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
  color: var(--color-white);
}

.point-content p {
  color: var(--color-concrete);
  margin: 0;
  line-height: 1.6;
}

.credentials-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.credential-item {
  background: var(--color-charcoal-light);
  border: 2px solid var(--color-steel);
  border-left: 4px solid var(--color-yellow);
  padding: var(--space-lg);
  transition: var(--transition);
}

.credential-item:hover {
  border-color: var(--color-yellow);
  transform: translateX(8px);
}

.cred-label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-concrete);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs);
}

.cred-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-yellow);
  letter-spacing: 0.05em;
}

/* ==================== CTA Section ==================== */
.cta-section {
  background: var(--color-black);
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.cta-container {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: clamp(3rem, 7vw, 6rem);
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.2rem;
  color: var(--color-concrete);
  margin-bottom: var(--space-xl);
}

.cta-actions {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-or {
  font-family: var(--font-display);
  color: var(--color-steel-light);
  font-size: 1.25rem;
  letter-spacing: 0.2em;
}

.cta-graphic {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 200px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  opacity: 0.1;
  transform: rotate(-15deg);
  pointer-events: none;
}

.warning-stripe {
  height: 60px;
  background: repeating-linear-gradient(
    45deg,
    var(--color-yellow),
    var(--color-yellow) 20px,
    var(--color-black) 20px,
    var(--color-black) 40px
  );
}

/* ==================== Footer ==================== */
footer {
  background: var(--color-charcoal);
  border-top: 2px solid var(--color-steel);
  padding: var(--space-2xl) var(--space-lg) var(--space-lg);
}

.footer-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-steel);
}

.footer-brand .brand {
  margin-bottom: var(--space-md);
  flex-direction: column;
  align-items: flex-start;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-concrete);
  letter-spacing: 0.1em;
  line-height: 1.6;
}

.footer-links-section h4 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
  color: var(--color-yellow);
}

.footer-links-section ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links-section a {
  color: var(--color-concrete);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.footer-links-section a:hover {
  color: var(--color-white);
  padding-left: var(--space-xs);
}

.footer-contact h4 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
  color: var(--color-yellow);
}

.footer-contact address {
  font-style: normal;
  color: var(--color-concrete);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.footer-contact a {
  color: var(--color-concrete);
  transition: var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--color-yellow);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.copyright {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-concrete);
  letter-spacing: 0.1em;
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
}

.footer-legal a {
  color: var(--color-concrete);
  transition: var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-yellow);
}

.footer-legal span {
  color: var(--color-steel-light);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .strength-container {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  :root {
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 5rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions a {
    width: 100%;
  }

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

  .cta-actions {
    flex-direction: column;
  }

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

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

@media (max-width: 480px) {
  .nav-container {
    padding: var(--space-sm) var(--space-md);
  }

  section {
    padding: var(--space-xl) var(--space-md);
  }
}

/* ==================== Accessibility ==================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: 2px;
}