/* 
  Klangwald Charts - Synthpop Dark Theme
  Design System Tokens & Base Styles
*/

:root {
  /* Color Palette - Synthpop Dark */
  --kw-bg-deep: #05050A;       /* Deepest black/blue */
  --kw-bg-surface: #12121A;    /* Slightly lighter surface */
  --kw-bg-card: #1A1A24;       /* Card background */
  
  --kw-primary: #00f0ff;       /* Cyan */
  --kw-secondary: #ff0055;     /* Neon Pink */
  --kw-tertiary: #b100ff;      /* Purple/Violet */
  
  --kw-text-main: #f0f0f5;
  --kw-text-muted: #8a8a9e;
  
  --kw-border: rgba(255, 255, 255, 0.1);
  --kw-border-glow: rgba(0, 240, 255, 0.3);
  
  /* Typography */
  --kw-font-sans: 'Outfit', 'Inter', 'Roboto', sans-serif;
  
  /* Transitions & Shadows */
  --kw-transition-fast: 0.2s ease;
  --kw-transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --kw-glow-primary: 0 0 15px rgba(0, 240, 255, 0.4);
  --kw-glow-secondary: 0 0 15px rgba(255, 0, 85, 0.4);
}

/* Base Reset & Body */
body {
  background-color: var(--kw-bg-deep);
  color: var(--kw-text-main);
  font-family: var(--kw-font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(177, 0, 255, 0.08), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(0, 240, 255, 0.08), transparent 25%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--kw-font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  text-transform: uppercase;
}

/* Header & Navigation overriding Bootstrap/Style.css */
.header-section {
  background-color: rgba(5, 5, 10, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kw-border);
}

.main-menu li a {
  color: var(--kw-text-main) !important;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--kw-transition-fast);
}

.main-menu li a:hover, 
.main-menu li.active a {
  color: var(--kw-primary) !important;
  text-shadow: var(--kw-glow-primary);
}

/* Typography Enhancements */
.section-title h2 {
  font-size: 2.5rem;
  background: linear-gradient(to right, var(--kw-primary), var(--kw-tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Buttons */
.site-btn {
  background: linear-gradient(45deg, var(--kw-secondary), var(--kw-tertiary));
  color: #fff !important;
  border: none;
  border-radius: 4px;
  padding: 12px 28px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--kw-transition-smooth);
  box-shadow: 0 4px 15px rgba(255, 0, 85, 0.2);
  cursor: pointer;
}

.site-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--kw-glow-secondary);
}

/* Forms */
.form-control, .custom-select {
  background-color: var(--kw-bg-surface);
  border: 1px solid var(--kw-border);
  color: var(--kw-text-main);
  border-radius: 4px;
}

.form-control:focus, .custom-select:focus {
  background-color: var(--kw-bg-card);
  border-color: var(--kw-primary);
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.2);
  color: #fff;
}

/* Chart Tables */
.chart-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 8px;
}

.chart-table tr {
  background-color: var(--kw-bg-surface);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transition: var(--kw-transition-fast);
}

.chart-table tr:hover {
  background-color: var(--kw-bg-card);
  transform: scale(1.01);
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  border-left: 2px solid var(--kw-primary);
}

.chart-table td {
  padding: 15px;
  vertical-align: middle;
  border-top: 1px solid var(--kw-border);
  border-bottom: 1px solid var(--kw-border);
}

.chart-table td:first-child {
  border-left: 1px solid var(--kw-border);
  border-top-left-radius: 8px;
  border-bottom-left-radius: 8px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--kw-primary);
  width: 60px;
  text-align: center;
}

.chart-table td:last-child {
  border-right: 1px solid var(--kw-border);
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
}

.chart-table img {
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
  width: 60px;
  height: 60px;
  object-fit: cover;
}

.chart-table h4 {
  margin: 0 0 5px 0;
  font-size: 1.1rem;
  color: #fff;
}

.chart-table p {
  margin: 0;
  color: var(--kw-text-muted);
  font-size: 0.9rem;
}

/* Glassmorphism Cards for Page Info */
.page-info-section {
  position: relative;
  padding: 80px 0;
  background-size: cover;
  background-position: center;
}
.page-info-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(5, 5, 10, 0.7);
  backdrop-filter: blur(5px);
}
.page-info-section .container {
  position: relative;
  z-index: 1;
}

/* Video Icon overrides */
.chart-table td a img[src*="youtube"] {
  width: 32px;
  height: 32px;
  opacity: 0.7;
  transition: 0.2s;
  box-shadow: none;
}
.chart-table td a:hover img[src*="youtube"] {
  opacity: 1;
  filter: drop-shadow(0 0 5px var(--kw-secondary));
}