/*--------------------------------------------------------------
# Design System
#
# A neutral-gray + indigo accent system in the vein of Linear /
# Stripe / Vercel. Dark is the default (matches users.theme
# default of 'dark'); [data-theme="light"] on <html> overrides it.
# Un-authenticated pages (login/register) fall back to the OS
# preference via prefers-color-scheme since there is no user yet.
--------------------------------------------------------------*/

:root {
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.0625rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;

  /* 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;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 999px;

  /* Motion */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;

  /* Accent (same hue in both themes) */
  --color-primary: #6366f1;
  --color-primary-hover: #7678f4;
  --color-primary-active: #4f52d6;
  --color-primary-contrast: #ffffff;
  --color-primary-soft: rgba(99, 102, 241, 0.14);

  /* Semantic status colors */
  --color-success: #22c55e;
  --color-success-soft: rgba(34, 197, 94, 0.14);
  --color-warning: #f59e0b;
  --color-warning-soft: rgba(245, 158, 11, 0.14);
  --color-danger: #ef4444;
  --color-danger-soft: rgba(239, 68, 68, 0.14);
  --color-info: #38bdf8;
  --color-info-soft: rgba(56, 189, 248, 0.14);
  --color-neutral-soft: rgba(148, 148, 160, 0.16);

  /* Dark theme surface palette (default) */
  --color-bg: #0b0c0f;
  --color-bg-inset: #08090b;
  --color-surface: #16171d;
  --color-surface-hover: #1c1d24;
  --color-surface-raised: #202128;
  --color-border: #26272f;
  --color-border-strong: #34353f;
  --color-text: #edeef2;
  --color-text-secondary: #b6b7c2;
  --color-text-muted: #82828e;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
  --overlay-bg: rgba(6, 7, 9, 0.6);
  --focus-ring: 0 0 0 3px rgba(99, 102, 241, 0.4);
}

:root[data-theme="light"] {
  --color-bg: #f6f6f8;
  --color-bg-inset: #eeeef1;
  --color-surface: #ffffff;
  --color-surface-hover: #f5f5f8;
  --color-surface-raised: #ffffff;
  --color-border: #e4e4ea;
  --color-border-strong: #d2d2db;
  --color-text: #17181c;
  --color-text-secondary: #4d4e58;
  --color-text-muted: #86868f;
  --shadow-sm: 0 1px 2px rgba(20, 20, 30, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 20, 30, 0.08);
  --shadow-lg: 0 16px 40px rgba(20, 20, 30, 0.12);
  --overlay-bg: rgba(20, 20, 30, 0.4);
  --color-primary-hover: #5457e8;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg: #f6f6f8;
    --color-bg-inset: #eeeef1;
    --color-surface: #ffffff;
    --color-surface-hover: #f5f5f8;
    --color-surface-raised: #ffffff;
    --color-border: #e4e4ea;
    --color-border-strong: #d2d2db;
    --color-text: #17181c;
    --color-text-secondary: #4d4e58;
    --color-text-muted: #86868f;
    --shadow-sm: 0 1px 2px rgba(20, 20, 30, 0.06);
    --shadow-md: 0 8px 24px rgba(20, 20, 30, 0.08);
    --shadow-lg: 0 16px 40px rgba(20, 20, 30, 0.12);
    --overlay-bg: rgba(20, 20, 30, 0.4);
    --color-primary-hover: #5457e8;
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

html[data-theme="light"] {
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: var(--text-base);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

h1, h2, h3, h4, h5 {
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-4);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }

p {
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4);
}

small {
  font-size: var(--text-sm);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-8);
}

/* -- Auth pages -- */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: var(--space-8) var(--space-4);
  background:
    radial-gradient(circle at 15% 10%, var(--color-primary-soft), transparent 45%),
    var(--color-bg);
}

.glass-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
}

.glass-card h2 {
  text-align: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.auth-logo {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.auth-logo img {
  max-height: 56px;
  max-width: 220px;
  width: auto;
  height: auto;
  opacity: 0.92;
}

/* -- Forms -- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background-color: var(--color-bg-inset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2382828e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2.4rem;
}

textarea.form-control {
  resize: vertical;
  min-height: 6rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.form-actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.form-container {
  max-width: 800px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.checkbox-wrapper input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-primary);
}

/* -- Buttons -- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-contrast);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-primary-contrast);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
}

.btn-danger {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: #fff;
}

.btn-danger:hover {
  filter: brightness(1.08);
  color: #fff;
}

.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
  border-color: transparent;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: var(--text-xs);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  padding: 0.5rem;
  line-height: 0;
}

/* -- Alerts (inline form feedback) -- */
.alert {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
  border: 1px solid transparent;
}

.alert-success {
  background-color: var(--color-success-soft);
  color: var(--color-success);
  border-color: var(--color-success-soft);
}

.alert-danger {
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
  border-color: var(--color-danger-soft);
}

.alert-warning {
  background-color: var(--color-warning-soft);
  color: var(--color-warning);
  border-color: var(--color-warning-soft);
}

.alert-info {
  background-color: var(--color-info-soft);
  color: var(--color-info);
  border-color: var(--color-info-soft);
}

/* -- Badges (status pills, used across list + detail pages) -- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--color-neutral-soft);
  color: var(--color-text-secondary);
  text-transform: capitalize;
  white-space: nowrap;
  letter-spacing: 0.2px;
}

.badge-success, .badge-done, .badge-paid, .badge-completed, .badge-accepted, .badge-active, .badge-approved, .badge-low {
  background-color: var(--color-success-soft);
  color: var(--color-success);
}

.badge-warning, .badge-in_progress, .badge-on_hold, .badge-partially_paid, .badge-sent, .badge-maybe, .badge-pending, .badge-medium {
  background-color: var(--color-warning-soft);
  color: var(--color-warning);
}

.badge-danger, .badge-cancelled, .badge-declined, .badge-overdue, .badge-rejected, .badge-high {
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
}

.badge-info, .badge-invoiced, .badge-review {
  background-color: var(--color-info-soft);
  color: var(--color-info);
}

.badge-neutral, .badge-draft, .badge-todo, .badge-not_started {
  background-color: var(--color-neutral-soft);
  color: var(--color-text-secondary);
}

/* Legacy .status-badge alias (kept so already-shipped pages keep working) */
.status-badge {
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: capitalize;
  letter-spacing: 0.2px;
}
.status-not_started, .status-draft, .status-todo { background-color: var(--color-neutral-soft); color: var(--color-text-secondary); }
.status-in_progress, .status-sent, .status-on_hold, .status-partially_paid { background-color: var(--color-warning-soft); color: var(--color-warning); }
.status-completed, .status-done, .status-paid, .status-accepted, .status-active { background-color: var(--color-success-soft); color: var(--color-success); }
.status-cancelled, .status-declined, .status-overdue { background-color: var(--color-danger-soft); color: var(--color-danger); }
.status-invoiced { background-color: var(--color-info-soft); color: var(--color-info); }

/* -- Progress bar (project task-completion widgets) -- */
.progress-item { margin-bottom: var(--space-3); }
.progress-item:last-child { margin-bottom: 0; }
.progress-item-label {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  margin-bottom: 0.35rem;
  color: var(--color-text);
}
.progress-item-label .text-muted { font-size: var(--text-xs); }
.progress-track {
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-inset);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
}
.progress-fill-success { background-color: var(--color-success); }
.progress-fill-danger { background-color: var(--color-danger); }

/* -- Reusable layout helpers (previously duplicated inline per-page) -- */
.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.mt-1 { margin-top: var(--space-4); }
.mt-2 { margin-top: var(--space-8); }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}

.detail-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.detail-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.detail-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.detail-value {
  color: var(--color-text);
}

.link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.link-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.file-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-actions, .actions-row {
  display: flex;
  gap: var(--space-3);
}

.invoice-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 400px;
  margin-left: auto;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
}

.summary-item.total {
  font-size: var(--text-xl);
  font-weight: 600;
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
}

.fade-in {
  animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -- Skeleton loaders -- */
.skeleton {
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  color: transparent !important;
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  animation: skeleton-sweep 1.4s infinite;
}

:root[data-theme="light"] .skeleton::after {
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
}

@keyframes skeleton-sweep {
  100% { transform: translateX(100%); }
}

/* -- Toasts -- */
.toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 360px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  color: var(--color-text);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  animation: toast-in 0.25s ease-out;
}

.toast.toast-success { border-left-color: var(--color-success); }
.toast.toast-danger { border-left-color: var(--color-danger); }
.toast.toast-warning { border-left-color: var(--color-warning); }

.toast-close {
  margin-left: auto;
  cursor: pointer;
  color: var(--color-text-muted);
  background: none;
  border: none;
  font-size: var(--text-base);
  line-height: 1;
  padding: 0;
}

.toast.toast-leaving {
  animation: toast-out 0.2s ease-in forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toast-out {
  to { opacity: 0; transform: translateX(16px); }
}

/* -- Modal / confirm dialog -- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  padding: var(--space-4);
  animation: fadeIn 0.15s ease-out;
}

.modal-card {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  max-width: 420px;
  width: 100%;
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.modal-body {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* -- File preview lightbox (images/PDFs) -- */
.preview-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  padding: var(--space-4);
  animation: fadeIn 0.15s ease-out;
}

.preview-modal-card {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 900px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.preview-modal-title {
  font-weight: 600;
  font-size: var(--text-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0 var(--space-2);
}

.preview-modal-body {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
}

.preview-modal-body img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.preview-modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* -- Tastenkürzel help overlay, see shortcuts.js -- */
.shortcuts-help-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.shortcuts-help-list kbd {
  display: inline-block;
  min-width: 1.5rem;
  padding: 0.15rem 0.5rem;
  margin-right: var(--space-2);
  text-align: center;
  font-family: monospace;
  font-size: var(--text-sm);
  background-color: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

@media (max-width: 640px) {
  .preview-modal-card {
    height: 90vh;
  }
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}
