/* ============================================
   DIALEDIN.CO.ZA — Industrial Precision Design
   ============================================ */

/* CSS Variables */
:root {
  /* Primary — Signal Orange */
  --color-orange: #FF4A00;
  --color-orange-light: #FF6A2A;
  --color-orange-dark: #CC3A00;
  
  /* Base — Carbon */
  --color-carbon: #1A1A1A;
  --color-carbon-light: #2A2A2A;
  --color-carbon-lighter: #3A3A3A;
  --color-carbon-dark: #0A0A0A;
  
  /* Accent — Warning Yellow */
  --color-yellow: #FFD600;
  --color-yellow-light: #FFE133;
  
  /* Neutral Palette */
  --color-white: #FAFAFA;
  --color-gray-light: #9A9A9A;
  --color-gray: #6A6A6A;
  
  /* Fonts */
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'JetBrains Mono', 'SF Mono', monospace;
  --font-headline: 'Space Grotesk', 'Akkurat', sans-serif;
  
  /* Typography Scale */
  --text-xs: clamp(0.625rem, 0.5vw, 0.75rem);
  --text-sm: clamp(0.75rem, 0.65vw, 0.875rem);
  --text-base: clamp(0.875rem, 0.8vw, 1rem);
  --text-lg: clamp(1rem, 1vw, 1.125rem);
  --text-xl: clamp(1.25rem, 1.5vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 2vw, 2rem);
  --text-3xl: clamp(1.75rem, 3vw, 2.5rem);
  --text-4xl: clamp(2rem, 5vw, 4rem);
  --text-hero: clamp(4rem, 12vw, 10rem);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Grid */
  --grid-gap: clamp(1rem, 2vw, 2rem);
  --section-padding-y: clamp(4rem, 10vh, 8rem);
  --section-padding-x: clamp(1rem, 5vw, 4rem);
  --container-max: 1400px;
  
  /* Animation */
  --ease-mechanical: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-precision: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-gray-light);
  background-color: var(--color-carbon);
  background-image: 
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect fill='%23ffffff' opacity='0.02' width='100' height='100'/%3E%3C/svg%3E");
  overflow-x: hidden;
}

/* Grid Overlay */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image: 
    linear-gradient(90deg, var(--color-carbon-lighter) 1px, transparent 1px),
    linear-gradient(var(--color-carbon-lighter) 1px, transparent 1px);
  background-size: 100px 100px;
  opacity: 0.15;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-headline);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-white);
}

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

.lead {
  font-size: var(--text-xl);
  line-height: 1.5;
  color: var(--color-white);
}

a {
  color: var(--color-orange);
  text-decoration: none;
  transition: color 0.2s var(--ease-mechanical);
}

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

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: linear-gradient(180deg, var(--color-carbon) 0%, transparent 100%);
  padding: var(--space-md) 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-orange);
  color: var(--color-carbon);
  font-size: var(--text-xl);
  font-weight: 700;
}

.logo-accent {
  color: var(--color-orange);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-menu a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-gray-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.nav-cta {
  background: var(--color-orange);
  color: var(--color-white) !important;
  padding: var(--space-sm) var(--space-md);
  transition: all 0.2s var(--ease-mechanical);
}

.nav-cta:hover {
  background: var(--color-orange-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--color-white);
  transition: all 0.3s var(--ease-mechanical);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s var(--ease-mechanical);
}

.button-primary {
  background: var(--color-orange);
  color: var(--color-white);
}

.button-primary:hover {
  background: var(--color-orange-light);
  transform: translateX(4px);
  color: var(--color-white);
}

.button-secondary {
  background: transparent;
  border: 2px solid var(--color-orange);
  color: var(--color-orange);
}

.button-secondary:hover {
  background: var(--color-orange);
  color: var(--color-white);
  transform: translateX(4px);
}

.button-large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-base);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--space-4xl) + 80px) var(--section-padding-x) var(--space-4xl);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

.hero-pretitle {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-yellow);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  line-height: 0.9;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xl);
}

.hero-line {
  display: block;
  color: var(--color-white);
}

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

.hero-subtitle {
  font-family: var(--font-headline);
  font-size: var(--text-2xl);
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero-description {
  font-size: var(--text-lg);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-visual {
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  z-index: 1;
}

.hero-circle {
  position: absolute;
  width: 300px;
  height: 300px;
  border: 2px solid var(--color-orange);
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse 4s ease-in-out infinite;
}

.hero-lines {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

.hero-lines span {
  position: absolute;
  background: var(--color-yellow);
  opacity: 0.5;
}

.hero-lines span:nth-child(1) {
  width: 2px;
  height: 200px;
  top: 0;
  right: 100px;
}

.hero-lines span:nth-child(2) {
  width: 150px;
  height: 2px;
  top: 100px;
  right: 0;
}

.hero-lines span:nth-child(3) {
  width: 2px;
  height: 100px;
  bottom: 50px;
  right: 150px;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.05); opacity: 0.5; }
}

/* Sections */
.section {
  position: relative;
  padding: var(--section-padding-y) var(--section-padding-x);
}

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

.section-dark {
  background: var(--color-carbon-dark);
}

.section-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.section-number {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-yellow);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-yellow);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.section-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.text-block {
  max-width: 600px;
}

.text-block p {
  font-size: var(--text-lg);
  line-height: 1.7;
}

/* Metrics */
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.metric {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-carbon-light);
  border-left: 4px solid var(--color-orange);
}

.metric-value {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-yellow);
  letter-spacing: -0.02em;
}

.metric-unit {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.metric-label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-sm);
}

/* Path Grid */
.path-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.path-card {
  padding: var(--space-xl);
  background: var(--color-carbon-light);
  border-left: 4px solid var(--color-orange);
}

.path-number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  color: var(--color-orange);
  line-height: 1;
  margin-bottom: var(--space-md);
}

.path-card h3 {
  font-family: var(--font-headline);
  font-size: var(--text-xl);
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.path-card p {
  font-size: var(--text-base);
  color: var(--color-gray-light);
  margin-bottom: var(--space-md);
}

.path-card ul {
  list-style: none;
  padding: 0;
}

.path-card li {
  font-size: var(--text-sm);
  color: var(--color-gray);
  padding-left: var(--space-md);
  position: relative;
  margin-bottom: var(--space-xs);
}

.path-card li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-yellow);
}

/* Split Layout */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.split-content .lead {
  margin-bottom: var(--space-lg);
}

.location-list {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-carbon-lighter);
}

.location {
  display: flex;
  flex-direction: column;