/* ─────────────────────────────────────────────────────────────────────────────
   biqx Controlling – Design System
   Unterstützt Dark Mode (Standard) und Light Mode (CRM-Stil).
   Theme-Wechsel via data-theme Attribut auf <html> — gesteuert durch
   components.js / initTheme().
   ─────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Shared Custom Properties (theme-unabhängig) ─────────────────────────── */
:root {
  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;

  /* Layout */
  --sidebar-width: 240px;
  --header-height: 60px;

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

  /* Transitions */
  --transition: 150ms ease;
}

/* ── Dark Theme (Standard für dieses Tool) ───────────────────────────────── */
[data-theme="dark"] {
  /* Core colors */
  --clr-bg:           #0d1117;
  --clr-bg-2:         #161b22;
  --clr-bg-3:         #1f2937;
  --clr-surface:      #21262d;
  --clr-border:       #30363d;
  --clr-border-hover: #484f58;

  /* Brand / Accent */
  --clr-primary:      #4f6ef7;
  --clr-primary-dark: #3b54d4;
  --clr-primary-glow: rgba(79, 110, 247, 0.25);
  --clr-accent:       #818cf8;

  /* Text */
  --clr-text:         #e6edf3;
  --clr-text-muted:   #8b949e;
  --clr-text-subtle:  #6e7681;

  /* Status */
  --clr-success:      #3fb950;
  --clr-warning:      #d29922;
  --clr-danger:       #f85149;
  --clr-info:         #58a6ff;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 24px rgba(0,0,0,0.6);
}

/* ── Light Theme (CRM-Stil) ──────────────────────────────────────────────── */
[data-theme="light"] {
  /* Core colors */
  --clr-bg:           #f9fafb;
  --clr-bg-2:         #ffffff;
  --clr-bg-3:         #f3f4f6;
  --clr-surface:      #ffffff;
  --clr-border:       #e5e7eb;
  --clr-border-hover: #d1d5db;

  /* Brand / Accent — gleiche Markenfarben, für hellen Hintergrund angepasst */
  --clr-primary:      #4f6ef7;
  --clr-primary-dark: #3b54d4;
  --clr-primary-glow: rgba(79, 110, 247, 0.12);
  --clr-accent:       #6366f1;

  /* Text */
  --clr-text:         #1f2937;
  --clr-text-muted:   #4b5563;
  --clr-text-subtle:  #6b7280;

  /* Status */
  --clr-success:      #10b981;
  --clr-warning:      #d97706;
  --clr-danger:       #ef4444;
  --clr-info:         #3b82f6;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,0.1);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--clr-accent); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--clr-text);
}

hr {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin: var(--space-lg) 0;
}

/* ── Layout Shell (authenticated pages) ─────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  min-height: 100vh;
}

/* ── Top Header ──────────────────────────────────────────────────────────── */
.app-header {
  grid-column: 1 / -1;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  background: var(--clr-bg-2);
  border-bottom: 1px solid var(--clr-border);
  z-index: 100;
}

.app-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -0.01em;
}

.app-header__logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
}

.app-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.app-header__tenant {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  background: var(--clr-bg-3);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
}

.app-header__user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

.app-header__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.app-sidebar {
  grid-column: 1;
  grid-row: 2;
  background: var(--clr-bg-2);
  border-right: 1px solid var(--clr-border);
  padding: var(--space-md) 0 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.nav-section {
  margin-bottom: var(--space-lg);
  flex-shrink: 0;
}

.nav-section__label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-subtle);
  padding: 0 var(--space-md) var(--space-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  border-radius: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  border-left: 3px solid transparent;
  text-decoration: none;
}

.nav-item:hover {
  background: var(--clr-bg-3);
  color: var(--clr-text);
}

.nav-item.active {
  background: var(--clr-primary-glow);
  color: var(--clr-primary);
  border-left-color: var(--clr-primary);
}

.nav-item__icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
  flex-shrink: 0;
}

.nav-item.active .nav-item__icon { opacity: 1; }

.nav-item__label { font-weight: 500; }

/* ── Main Content ────────────────────────────────────────────────────────── */
.app-main {
  grid-column: 2;
  grid-row: 2;
  padding: var(--space-xl);
  overflow-y: auto;
}

.page-header {
  margin-bottom: var(--space-xl);
}

.page-header__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.page-header__subtitle {
  color: var(--clr-text-muted);
  font-size: 0.875rem;
}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition);
}

.card:hover { border-color: var(--clr-border-hover); }

.card__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.card__value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
}

.card__delta {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  margin-top: var(--space-xs);
}

/* ── Grid utilities ──────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* ── Stat Card ───────────────────────────────────────────────────────────── */
.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.stat-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card:hover::before { opacity: 1; }

.stat-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-bg-3);
  margin-bottom: var(--space-xs);
}

.stat-card__label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}

.stat-card__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
}

.stat-card__sub {
  font-size: 0.75rem;
  color: var(--clr-text-subtle);
}

/* ── Login Page ──────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  background: var(--clr-bg);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,110,247,0.08) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  pointer-events: none;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(129,140,248,0.05) 0%, transparent 70%);
  bottom: -150px;
  left: -100px;
  pointer-events: none;
}

.login-box {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.login-logo__icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
}

.login-logo__name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-text);
}

.login-logo__product {
  font-size: 0.7rem;
  background: var(--clr-primary-glow);
  color: var(--clr-primary);
  border: 1px solid rgba(79,110,247,0.3);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.login-subtitle {
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-xl);
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: var(--space-md); }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.02em;
}

.required { color: var(--clr-danger); margin-left: 2px; }

.form-control {
  display: block;
  width: 100%;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--clr-text);
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-glow);
}

.form-control::placeholder { color: var(--clr-text-subtle); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 9px 18px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition),
              transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(79,110,247,0.3);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(79,110,247,0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--clr-bg-3);
  color: var(--clr-text-muted);
  border-color: var(--clr-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--clr-surface);
  color: var(--clr-text);
  border-color: var(--clr-border-hover);
}

.btn-danger {
  background: rgba(248,81,73,0.15);
  color: var(--clr-danger);
  border-color: rgba(248,81,73,0.3);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(248,81,73,0.25);
}

.btn-full { width: 100%; justify-content: center; }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  border: 1px solid;
}

.alert-error {
  background: rgba(248,81,73,0.1);
  border-color: rgba(248,81,73,0.3);
  color: #ff8a80;
}

.alert-success {
  background: rgba(63,185,80,0.1);
  border-color: rgba(63,185,80,0.3);
  color: #69db7c;
}

.alert-info {
  background: rgba(88,166,255,0.1);
  border-color: rgba(88,166,255,0.3);
  color: var(--clr-info);
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-success  { background: rgba(63,185,80,0.15);  color: var(--clr-success); border: 1px solid rgba(63,185,80,0.3); }
.badge-danger   { background: rgba(248,81,73,0.15);  color: var(--clr-danger);  border: 1px solid rgba(248,81,73,0.3); }
.badge-warning  { background: rgba(210,153,34,0.15); color: var(--clr-warning); border: 1px solid rgba(210,153,34,0.3); }
.badge-primary  { background: var(--clr-primary-glow); color: var(--clr-primary); border: 1px solid rgba(79,110,247,0.3); }
.badge-muted    { background: var(--clr-bg-3); color: var(--clr-text-muted); border: 1px solid var(--clr-border); }

/* ── Welcome Banner ──────────────────────────────────────────────────────── */
.welcome-banner {
  background: linear-gradient(135deg, rgba(79,110,247,0.12), rgba(129,140,248,0.06));
  border: 1px solid rgba(79,110,247,0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.welcome-banner::after {
  content: 'CONTROLLING';
  position: absolute;
  right: var(--space-xl);
  top: 50%;
  transform: translateY(-50%);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(79,110,247,0.06);
  letter-spacing: 0.1em;
  pointer-events: none;
}

.welcome-banner__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.welcome-banner__subtitle {
  color: var(--clr-text-muted);
  font-size: 0.875rem;
}

/* ── Placeholder Widget ──────────────────────────────────────────────────── */
.placeholder-widget {
  background: var(--clr-surface);
  border: 1px dashed var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  color: var(--clr-text-subtle);
}

.placeholder-widget__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  opacity: 0.4;
}

.placeholder-widget__text { font-size: 0.875rem; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg-2); }
::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-border-hover); }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.text-muted   { color: var(--clr-text-muted); }
.text-subtle  { color: var(--clr-text-subtle); }
.text-primary { color: var(--clr-primary); }
.text-success { color: var(--clr-success); }
.text-danger  { color: var(--clr-danger); }
.text-sm      { font-size: 0.875rem; }
.text-xs      { font-size: 0.75rem; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.items-center { align-items: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

/* ── Demo hint on login ──────────────────────────────────────────────────── */
.demo-hint {
  margin-top: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  text-align: center;
}
.demo-hint strong { color: var(--clr-text); }

/* ── Sidebar Footer / User Card ──────────────────────────────────────────── */
.sidebar-footer {
  margin-top: auto;
  padding: var(--space-sm) var(--space-sm) var(--space-md);
  border-top: 1px solid var(--clr-border);
  position: relative;
}

.user-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition);
}

.user-card:hover {
  background: var(--clr-bg-3);
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-info .name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}

.user-info .role {
  font-size: 0.7rem;
  color: var(--clr-text-muted);
  text-transform: capitalize;
}

/* ── User Flyout Menu ────────────────────────────────────────────────────── */
.user-flyout {
  position: absolute;
  bottom: calc(100% + 4px);
  left: var(--space-sm);
  width: calc(100% - var(--space-md));
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 6px;
  z-index: 9999;
  transition: opacity 0.18s, transform 0.18s;
  transform: translateY(0);
}

.user-flyout.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.user-flyout a {
  padding: 9px 12px;
  color: var(--clr-text);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: background var(--transition);
}

.user-flyout a:hover {
  background: var(--clr-bg-3);
  color: var(--clr-text);
}

.user-flyout a.text-danger {
  color: var(--clr-danger);
  margin-top: 2px;
}

/* ── Toast Notifications ─────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  box-shadow: var(--shadow-md);
  animation: toastSlideIn 0.3s ease;
  max-width: 320px;
}

.toast-success { background: var(--clr-success); }
.toast-error   { background: var(--clr-danger); }
.toast-info    { background: var(--clr-primary); }

@keyframes toastSlideIn {
  from { transform: translateX(110%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
