/*  EXUS Portal 2.0 � Neo-Rectangular UI 
    (May 2025 � Enhanced Symmetry Edition)
---------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Enhanced palette & systematic spacing */
:root {
  /* Color system - Hardline Theme */
  --accent: #ff6b35;       --accent-d: #e6390c;
  --accent-light: #ff8c5a; --accent-glow: rgba(255,107,53,0.4);
  --bg-1: #0a0a0f;         --bg-2: #14141a;
  --bg-3: #1e1e26;         --bg-4: #282830;
  --glass: rgba(255,255,255,0.06);
  --glass-strong: rgba(255,255,255,0.1);
  --text: #ffffff;         --text-secondary: #b8bcc8;
  --muted: #6b7280;        --muted-dark: #4b5563;
  --success: #10b981;      --success-glow: rgba(16,185,129,0.3);
  --danger: #ef4444;       --danger-glow: rgba(239,68,68,0.3);
  --warning: #f59e0b;      --info: #3b82f6;
  --border: #2d2d3a;       --border-light: #3d3d4a;
  --highlight: rgba(255,107,53,0.15);
  --highlight-strong: rgba(255,107,53,0.25);
  
  /* Spacing system */
  --space-unit: 8px;
  --space-xs: calc(var(--space-unit) * 1);
  --space-sm: calc(var(--space-unit) * 2);
  --space-md: calc(var(--space-unit) * 3);
  --space-lg: calc(var(--space-unit) * 4);
  --space-xl: calc(var(--space-unit) * 6);
  
  /* Typography */
  --fs-sm: 0.85rem;        --fs-base: 1rem;
  --fs-md: 1.25rem;        --fs-lg: 1.5rem;
  
  /* Visual effects */
  --radius: 12px;          --radius-sm: 8px;
  --radius-lg: 16px;       --radius-xl: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.6);
  --shadow-xl: 0 12px 60px rgba(0,0,0,0.7);
  --shadow-glow: 0 0 20px var(--accent-glow);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-fast: all 0.15s cubic-bezier(0.4,0,0.2,1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-1);
  min-height: 100vh;
  padding: var(--space-xl);
  background-image: 
    radial-gradient(circle at 25% 35%, rgba(255,107,53,0.12) 0%, transparent 45%),
    radial-gradient(circle at 75% 65%, rgba(255,107,53,0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(255,107,53,0.05) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 50%, var(--bg-1) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- Systematic layout container ------------------------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* ----- Enhanced top bar with symmetrical elements ---------- */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(145deg, rgba(30,30,38,0.95) 0%, rgba(20,20,26,0.95) 100%);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-md);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.logo-100 {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
  transition: var(--transition);
}

.logo-100:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 6px 12px var(--accent-glow));
}

/* ----- Precision navigation tabs --------------------------- */
.nav {
  display: flex;
  gap: var(--space-lg);
}

.nav a {
  position: relative;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.nav a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: translateX(-50%);
  transition: var(--transition);
  border-radius: 2px;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255,107,53,0.1);
}

.nav a:hover::after,
.nav a.active::after {
  width: calc(100% - 16px);
}

.nav a.active {
  color: var(--text);
  font-weight: 600;
  background: rgba(255,107,53,0.15);
}

/* ----- Card system with consistent proportions ------------ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: linear-gradient(145deg, rgba(30,30,38,0.8) 0%, rgba(20,20,26,0.9) 100%);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.05);
  padding: var(--space-xl);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-light), transparent);
  transform: scaleX(0);
  transition: var(--transition);
  opacity: 0.8;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6), 0 0 30px rgba(255,107,53,0.2);
  border-color: rgba(255,107,53,0.4);
  background: linear-gradient(145deg, rgba(30,30,38,0.9) 0%, rgba(20,20,26,0.95) 100%);
}

.card:hover::before {
  transform: scaleX(1);
}

.card h2 {
  font-weight: 600;
  font-size: var(--fs-base);
  margin-bottom: var(--space-xs);
}

.card p {
  color: var(--muted);
  font-size: var(--fs-sm);
}

/* ----- Enhanced table with perfect alignment -------------- */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-2);
  box-shadow: var(--shadow);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.table th,
.table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text-secondary);
  background: linear-gradient(135deg, var(--bg-3) 0%, var(--bg-4) 100%);
  position: sticky;
  top: 0;
  z-index: 10;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr {
  transition: var(--transition-fast);
}

.table tr:hover {
  background: var(--highlight);
  transform: scale(1.01);
}

/* ----- Precision buttons with systematic sizing --------- */
.btn-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--fs-sm);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover {
  background: linear-gradient(135deg, var(--accent-d) 0%, var(--accent) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
}

.btn:hover::before {
  left: 100%;
}

.btn:active {
  transform: translateY(0);
}

.btn.outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  box-shadow: none;
}

.btn.outline:hover {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn.sm {
  padding: var(--space-xs) var(--space-sm);
}

.btn.full-width {
  width: 100%;
}

/* ----- Status indicator system --------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-sm);
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag.success {
  background: rgba(16,185,129,0.2);
  color: var(--success);
  border: 1px solid rgba(16,185,129,0.3);
  box-shadow: 0 0 10px var(--success-glow);
}

.tag.danger {
  background: rgba(239,68,68,0.2);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.3);
  box-shadow: 0 0 10px var(--danger-glow);
}

.tag.neutral {
  background: var(--bg-3);
  color: var(--muted);
  border: 1px solid var(--border);
}

/* ----- Alert system with consistent spacing ------------- */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border-left: 4px solid transparent;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.alert.error {
  background: rgba(239,68,68,0.15);
  border-left-color: var(--danger);
  border: 1px solid rgba(239,68,68,0.3);
}

.alert.ok {
  background: rgba(16,185,129,0.15);
  border-left-color: var(--success);
  border: 1px solid rgba(16,185,129,0.3);
}

/* ----- Form field system -------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

label {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--muted);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  background: var(--bg-3);
  border: 1px solid var(--border);
  font: inherit;
  color: var(--text);
  transition: var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-4);
  box-shadow: 0 0 0 3px rgba(255,107,53,0.2), inset 0 0 0 1px rgba(255,107,53,0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

/* ----- Code blocks ------------------------------------- */
pre.copy {
  background: var(--bg-3);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow-x: auto;
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  font-size: var(--fs-sm);
  transition: var(--transition);
  position: relative;
}

pre.copy:hover {
  cursor: pointer;
  background: var(--bg-4);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(255,107,53,0.2);
  transform: translateY(-2px);
}

.key-box {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(135deg, var(--bg-3) 0%, var(--bg-4) 100%);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius);
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  font-size: var(--fs-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.key-box:hover {
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(255,107,53,0.2);
}

/* ----- Responsive grid system ------------------------- */
@media (max-width: 1024px) {
  body {
    padding: var(--space-lg);
  }
  
  .container {
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --space-unit: 6px;
  }
  
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  
  .nav {
    width: 100%;
    justify-content: space-between;
    gap: var(--space-sm);
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  body {
    padding: var(--space-md);
  }
  
  .btn-group {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
}

/* ----- Link Styling (remove default blue) ----------------- */
a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

a:not(.btn):not(.nav a):hover {
  color: var(--accent);
}

/* Links in Cards - nicht blau */
.card a:not(.btn) {
  color: var(--text);
  text-decoration: none;
}

.card a:not(.btn):hover {
  color: var(--accent);
  text-decoration: none;
}