/* ============================================
   TECHNICAL RISK ARCHITECT — Design Tokens
   ============================================ */

:root {
  /* Background palette — architectural dark, never pure black */
  --color-bg-base:       #0f1624;   /* matte midnight navy */
  --color-bg-surface:    #161e30;   /* card / section surface */
  --color-bg-elevated:   #1c2640;   /* hover / elevated surface */
  --color-bg-section-alt:#131a2b;   /* alternating section bg */

  /* Amber / Gold accent system */
  --color-accent:        #d4a017;   /* primary amber gold */
  --color-accent-light:  #f0c040;   /* lighter gold for hover */
  --color-accent-dark:   #a07010;   /* deeper gold for borders */
  --color-accent-muted:  rgba(212, 160, 23, 0.15); /* subtle glow bg */

  /* Text */
  --color-text-primary:  #e8eaf2;   /* near-white, warm */
  --color-text-secondary:#9aa3b8;   /* muted slate-blue */
  --color-text-muted:    #6270888;   /* very muted */
  --color-text-accent:   #d4a017;

  /* Borders */
  --color-border:        rgba(212, 160, 23, 0.2);
  --color-border-subtle: rgba(255, 255, 255, 0.07);

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Spacing scale */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-accent: 0 0 32px rgba(212, 160, 23, 0.12);

  /* Transitions */
  --transition-base: 200ms ease;
  --transition-slow: 400ms ease;
}

/* ============================================
   RESET & BASE
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }

p {
  color: var(--color-text-secondary);
  max-width: 68ch;
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

.section {
  padding-block: var(--space-4xl);
}

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

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

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

.section-intro {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 60ch;
  margin-bottom: var(--space-3xl);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.8rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-accent);
  color: #0f1624;
}

.btn-primary:hover {
  background: var(--color-accent-light);
  color: #0f1624;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(212, 160, 23, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-muted);
  color: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

/* ============================================
   ACCENT LINE
   ============================================ */

.accent-line {
  display: inline-block;
  width: 3rem;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: var(--space-md);
}

/* ============================================
   SCROLLBAR
   ============================================ */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-base); }
::-webkit-scrollbar-thumb { background: var(--color-accent-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }