/* ===============================================
   391READY DESIGN SYSTEM
   The Only Voice-Based ELP Assessment
   =============================================== */

/* ===============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   =============================================== */
:root {
  /* === COLORS: Grayscale === */
  --black: #0a0a0a;
  --black-pure: #000000;
  --charcoal: #141414;
  --graphite: #1a1a1a;
  --slate: #242424;
  --steel: #2d2d2d;

  /* === COLORS: White Opacity Scale === */
  --white: #ffffff;
  --white-90: rgba(255,255,255,0.9);
  --white-70: rgba(255,255,255,0.7);
  --white-50: rgba(255,255,255,0.5);
  --white-30: rgba(255,255,255,0.3);
  --white-15: rgba(255,255,255,0.25);
  --white-08: rgba(255,255,255,0.15);
  --white-04: rgba(255,255,255,0.08);

  /* === COLORS: Brand - Amber (Primary) === */
  --amber: #FFB300;
  --amber-bright: #FFC107;
  --amber-glow: rgba(255,179,0,0.25);
  --amber-dim: rgba(255,179,0,0.08);

  /* === COLORS: Semantic - Red (Danger/Urgent) === */
  --red: #FF3D3D;
  --red-glow: rgba(255,61,61,0.3);
  --red-dim: rgba(255,61,61,0.1);

  /* === COLORS: Semantic - Green (Success) === */
  --green: #00E676;
  --green-glow: rgba(0,230,118,0.3);
  --green-dim: rgba(0,230,118,0.1);

  /* === TYPOGRAPHY: Font Families === */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Barlow', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  /* === TYPOGRAPHY: Font Sizes === */
  --text-xs: 0.75rem;
  --text-sm: 0.85rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --text-6xl: 5rem;

  /* === SPACING === */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* === BORDERS & RADIUS === */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --border-subtle: 1px solid var(--white-08);
  --border-medium: 1px solid var(--white-15);
  --border-strong: 2px solid var(--white-30);

  /* === SHADOWS === */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow-amber: 0 4px 20px var(--amber-glow);
  --shadow-glow-red: 0 4px 20px var(--red-glow);
  --shadow-glow-green: 0 4px 20px var(--green-glow);

  /* === TRANSITIONS === */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* === Z-INDEX SCALE === */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-fixed: 1000;
  --z-modal: 2000;
  --z-tooltip: 3000;
}

/* ===============================================
   RESET & BASE
   =============================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

/* Display Headlines - Oswald */
.text-display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

h1, .h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, var(--text-6xl));
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, var(--text-4xl));
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.3;
}

/* Body Text */
.text-body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--white-70);
}

.text-body-lg {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--white-70);
}

/* Monospace / Technical Text */
.text-mono {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

/* Labels & Tags */
.text-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Color Utilities */
.text-white { color: var(--white); }
.text-muted { color: var(--white-50); }
.text-subtle { color: var(--white-70); }
.text-amber { color: var(--amber); }
.text-red { color: var(--red); }
.text-green { color: var(--green); }

/* Gradient Text */
.text-gradient-red {
  background: linear-gradient(135deg, var(--red) 0%, #FF6B35 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-amber {
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===============================================
   LAYOUT
   =============================================== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-16);
  }
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* Section Spacing */
.section {
  padding: var(--space-20) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* ===============================================
   BUTTONS
   =============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn:focus {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* Button Sizes */
.btn-sm {
  padding: 0.625rem 1rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 1.25rem 3rem;
  font-size: var(--text-lg);
}

/* Button Variants */
.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--white-90);
  transform: translateY(-2px);
}

.btn-amber {
  background: var(--amber);
  color: var(--black-pure);
  box-shadow: var(--shadow-glow-amber);
}

.btn-amber:hover {
  background: var(--amber-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--amber-glow);
}

.btn-danger {
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-glow-red);
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--red-glow);
}

.btn-success {
  background: var(--green);
  color: var(--black-pure);
  box-shadow: var(--shadow-glow-green);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--green-glow);
}

.btn-outline {
  background: rgba(255,255,255,0.05);
  color: var(--white);
  border: 2px solid var(--white-30);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--white-70);
  background: var(--white-08);
}

.btn-ghost {
  background: transparent;
  color: var(--white-70);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  color: var(--white);
  background: var(--white-04);
}

/* ===============================================
   CARDS
   =============================================== */
.card {
  background: rgba(30,30,30,0.85);
  border: var(--border-subtle);
  padding: var(--space-8);
  position: relative;
  transition: all var(--transition-slow);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(40, 40, 40, 0.9);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-solid {
  background: var(--slate);
  border: var(--border-subtle);
}

.card-glass {
  background: rgba(25,25,25,0.9);
  backdrop-filter: blur(20px);
  border: var(--border-subtle);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

/* Card Number Accent (for numbered cards) */
.card-number {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.2);
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
}

/* ===============================================
   BADGES & TAGS
   =============================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.375rem 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
}

.badge-amber {
  background: var(--amber-dim);
  color: var(--amber);
  border: 1px solid var(--amber-glow);
}

.badge-red {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(255,61,61,0.5);
}

.badge-green {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid var(--green-glow);
}

.badge-outline {
  background: transparent;
  color: var(--white-70);
  border: 1px solid var(--white-15);
}

/* Pulsing Dot (for live/urgent indicators) */
.badge-pulse {
  width: 8px;
  height: 8px;
  background: currentColor;
  border-radius: 50%;
  animation: pulse-glow 1.5s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 10px currentColor;
  }
  50% {
    opacity: 0.6;
    transform: scale(0.85);
    box-shadow: 0 0 5px currentColor;
  }
}

/* ===============================================
   NAVIGATION
   =============================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-fixed);
  padding: var(--space-5) 0;
  border-bottom: var(--border-subtle);
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px);
}

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

.nav-links {
  display: none;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--white-70);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-base);
}

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

/* ===============================================
   LOGO
   =============================================== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.logo-mark {
  width: 44px;
  height: 44px;
  background: var(--amber);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transform: rotate(-2deg);
  box-shadow: 4px 4px 0 var(--black), var(--shadow-glow-amber);
}

.logo-mark::before {
  content: '';
  position: absolute;
  inset: 3px;
  border: 2px solid var(--black);
  border-radius: var(--radius-sm);
}

.logo-mark svg {
  width: 24px;
  height: 24px;
  color: var(--black);
  position: relative;
  z-index: 1;
}

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}

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

/* ===============================================
   ALERT BANNER
   =============================================== */
.alert-banner {
  background: repeating-linear-gradient(
    -45deg,
    rgba(0,0,0,0.9),
    rgba(0,0,0,0.9) 10px,
    rgba(20,20,20,0.9) 10px,
    rgba(20,20,20,0.9) 20px
  );
  border-bottom: 3px solid var(--red);
  padding: 0.875rem var(--space-8);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.alert-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--red-dim) 0%, transparent 30%, transparent 70%, var(--red-dim) 100%);
}

.alert-banner-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.alert-pulse {
  width: 10px;
  height: 10px;
  background: var(--red);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--red), 0 0 40px var(--red-glow);
  animation: pulse-glow 1.5s ease-in-out infinite;
}

.alert-text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--white-90);
}

.alert-text strong {
  color: var(--red);
  font-weight: 700;
}

/* ===============================================
   FORM ELEMENTS
   =============================================== */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white-70);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  padding: var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--white);
  background: var(--slate);
  border: var(--border-subtle);
  transition: all var(--transition-base);
}

.form-input:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber-dim);
}

.form-input::placeholder {
  color: var(--white-30);
}

.form-input-lg {
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-lg);
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23ffffff70' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-12);
}

/* ===============================================
   STAT DISPLAYS
   =============================================== */
.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.stat-number-red { color: var(--red); }
.stat-number-amber { color: var(--amber); }
.stat-number-green { color: var(--green); }

.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white-50);
  margin-top: var(--space-2);
}

.stat-context {
  font-size: var(--text-sm);
  color: var(--white-30);
  margin-top: var(--space-1);
}

/* ===============================================
   TABLES
   =============================================== */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white-50);
  text-align: left;
  padding: var(--space-4);
  border-bottom: var(--border-medium);
}

.table td {
  padding: var(--space-4);
  border-bottom: var(--border-subtle);
  color: var(--white-70);
}

.table tr:hover td {
  background: var(--white-04);
}

/* ===============================================
   ICONS
   =============================================== */
.icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }

.icon-box {
  width: 56px;
  height: 56px;
  background: var(--slate);
  border: var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-box svg {
  width: 28px;
  height: 28px;
  color: var(--amber);
}

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

/* Display */
.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flex */
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Spacing */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Width */
.w-full { width: 100%; }
.max-w-sm { max-width: 400px; }
.max-w-md { max-width: 600px; }
.max-w-lg { max-width: 800px; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-70 { opacity: 0.7; }

/* Backdrop */
.backdrop-blur {
  backdrop-filter: blur(20px);
}

/* ===============================================
   RESPONSIVE BREAKPOINTS REFERENCE
   ===============================================
   sm: 640px
   md: 768px
   lg: 1024px
   xl: 1280px
   2xl: 1440px
   =============================================== */

@media (min-width: 640px) {
  .sm\:flex { display: flex; }
  .sm\:hidden { display: none; }
}

@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:hidden { display: none; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:hidden { display: none; }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}