/* clic_harbor Portal — app.css
   Design tokens, base reset, layout primitives, components.
   Uses CSS custom properties for theming (light + dark).
*/

/* ============================================================
   Design tokens — light theme defaults
   ============================================================ */
:root {
  /* Colors */
  --color-surface:       #ffffff;
  --color-surface-2:     #f8fafc;
  --color-surface-3:     #f1f5f9;
  --color-border:        #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-text:          #1e293b;
  --color-text-muted:    #64748b;
  --color-text-inverse:  #f8fafc;
  --color-accent:        #3b82f6;
  --color-accent-hover:  #2563eb;
  --color-accent-light:  #eff6ff;
  --color-success:       #22c55e;
  --color-success-light: #f0fdf4;
  --color-warning:       #f59e0b;
  --color-warning-light: #fffbeb;
  --color-danger:        #ef4444;
  --color-danger-hover:  #dc2626;
  --color-danger-light:  #fef2f2;
  --color-info:          #06b6d4;
  --color-info-light:    #ecfeff;

  /* Typography */
  --font-family:   system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono:     ui-monospace, "Cascadia Code", "Fira Code", Consolas, monospace;
  --font-size-xs:  0.64rem;    /* 10.24px */
  --font-size-sm:  0.8rem;     /* 12.8px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md:  1.25rem;    /* 20px */
  --font-size-lg:  1.563rem;   /* 25px */
  --font-size-xl:  1.953rem;   /* 31px */
  --font-size-2xl: 2.441rem;   /* 39px */
  --line-height:   1.6;
  --line-height-tight: 1.3;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing scale: 4/8/12/16/24/32/48/64 */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */

  /* Border radius */
  --radius-sm: 0.25rem;
  --radius:    0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

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

  /* Focus ring */
  --focus-ring-width:  2px;
  --focus-ring-offset: 2px;
  --focus-ring-color:  var(--color-accent);

  /* Layout */
  --nav-height:    3.5rem;
  --content-width: 72rem;
  --sidebar-width: 14rem;

  /* Transitions */
  --transition-fast:   100ms ease;
  --transition-base:   150ms ease;
  --transition-slow:   250ms ease;
}

/* Dark theme via data-theme attribute */
:root[data-theme="dark"] {
  --color-surface:       #0f172a;
  --color-surface-2:     #1e293b;
  --color-surface-3:     #334155;
  --color-border:        #334155;
  --color-border-strong: #475569;
  --color-text:          #f8fafc;
  --color-text-muted:    #94a3b8;
  --color-text-inverse:  #0f172a;
  --color-accent:        #3b82f6;
  --color-accent-hover:  #60a5fa;
  --color-accent-light:  #1e3a5f;
  --color-success-light: #052e16;
  --color-warning-light: #2d1a00;
  --color-danger-light:  #2d0f0f;
  --color-info-light:    #083344;
}

/* Dark theme via media query (for users without JS / no manual override) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-surface:       #0f172a;
    --color-surface-2:     #1e293b;
    --color-surface-3:     #334155;
    --color-border:        #334155;
    --color-border-strong: #475569;
    --color-text:          #f8fafc;
    --color-text-muted:    #94a3b8;
    --color-text-inverse:  #0f172a;
    --color-accent:        #3b82f6;
    --color-accent-hover:  #60a5fa;
    --color-accent-light:  #1e3a5f;
    --color-success-light: #052e16;
    --color-warning-light: #2d1a00;
    --color-danger-light:  #2d0f0f;
    --color-info-light:    #083344;
  }
}

/* ============================================================
   Base reset
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-surface);
  min-height: 100vh;
}

img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--color-accent-hover); }

/* ============================================================
   Skip-to-content link
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: var(--font-weight-semibold);
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-4); outline: none; }

/* ============================================================
   Focus styles
   ============================================================ */
:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  border-radius: var(--radius-sm);
}

/* ============================================================
   Layout: Nav
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-6);
}

.site-logo {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.025em;
}
.site-logo:hover { color: var(--color-accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover {
  background: var(--color-surface-3);
  color: var(--color-text);
}
.nav-link[aria-current="page"] {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.nav-spacer { flex: 1; }

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   Layout: Page shell
   ============================================================ */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-main {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: var(--content-width);
  width: 100%;
  margin: 0 auto;
}

.page-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-align: center;
}

/* ============================================================
   Flash messages
   ============================================================ */
.flash-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  margin-top: var(--space-4);
}

.flash {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.flash--success {
  background: var(--color-success-light);
  color: #166534;
  border-color: #bbf7d0;
}
.flash--info {
  background: var(--color-info-light);
  color: #0e7490;
  border-color: #a5f3fc;
}
.flash--warning {
  background: var(--color-warning-light);
  color: #92400e;
  border-color: #fde68a;
}
.flash--danger, .flash--error {
  background: var(--color-danger-light);
  color: #991b1b;
  border-color: #fecaca;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card--centered {
  max-width: 28rem;
  margin: 0 auto;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.btn:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}
.btn[disabled], .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover { background: var(--color-surface-3); }

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

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--color-surface-3); color: var(--color-text); }

.btn--sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-sm);
}
.btn--lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-md);
}
.btn--wide { width: 100%; }

/* GitHub button */
.btn--github {
  background: #24292f;
  color: #fff;
  border-color: #24292f;
  gap: var(--space-3);
}
.btn--github:hover { background: #1a1f24; }

/* ============================================================
   Forms
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

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

.form-control {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.15);
}
.form-control[aria-invalid="true"] {
  border-color: var(--color-danger);
}
.form-control[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.15);
}

.form-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* ============================================================
   Status badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.125rem var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1.5;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.badge--provisioning { background: #fef3c7; color: #92400e; }
.badge--active       { background: #dcfce7; color: #166534; }
.badge--suspended    { background: #f1f5f9; color: #475569; }
.badge--error        { background: #fee2e2; color: #991b1b; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .badge--provisioning { background: #2d1a00; color: #fde68a; }
  :root:not([data-theme="light"]) .badge--active       { background: #052e16; color: #86efac; }
  :root:not([data-theme="light"]) .badge--suspended    { background: #1e293b; color: #94a3b8; }
  :root:not([data-theme="light"]) .badge--error        { background: #2d0f0f; color: #fca5a5; }
}

/* ============================================================
   HTMX progress / loading indicators
   ============================================================ */
.htmx-indicator {
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .htmx-indicator { transition: none; }
}

.progress-bar {
  height: 4px;
  background: var(--color-surface-3);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar__fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}
.progress-bar--indeterminate .progress-bar__fill {
  width: 40%;
  animation: progress-indeterminate 1.5s ease-in-out infinite;
}
@keyframes progress-indeterminate {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}
@media (prefers-reduced-motion: reduce) {
  .progress-bar--indeterminate .progress-bar__fill {
    animation: none;
    width: 100%;
    opacity: 0.5;
  }
}

/* ============================================================
   Layout primitives (CUBE CSS inspired)
   ============================================================ */

/* Stack: vertical flow with consistent gap */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.stack--sm { gap: var(--space-2); }
.stack--lg { gap: var(--space-8); }

/* Cluster: horizontal flow that wraps */
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}
.cluster--end   { justify-content: flex-end; }
.cluster--space { justify-content: space-between; }

/* Center: horizontally centers content within a max-width */
.center {
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* Grid: responsive multi-column */
.grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(min(14rem, 100%), 1fr));
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(12rem, 100%), 1fr)); }

/* ============================================================
   Summary stat cards (dashboard)
   ============================================================ */
.stat-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  box-shadow: var(--shadow-sm);
}
.stat-card__value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}
.stat-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================================
   Tables
   ============================================================ */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.data-table th {
  background: var(--color-surface-2);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}
.data-table th a {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.data-table th a:hover { color: var(--color-text); }
.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-surface-3); }

/* ============================================================
   Empty state
   ============================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-16) var(--space-6);
  gap: var(--space-4);
}
.empty-state__icon {
  width: 3rem;
  height: 3rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}
.empty-state__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}
.empty-state__body {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  max-width: 28rem;
}

/* ============================================================
   Page headings
   ============================================================ */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.page-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.025em;
}
.page-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================================
   Filter chips
   ============================================================ */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  text-decoration: none;
  background: var(--color-surface);
  transition: all var(--transition-fast);
}
.filter-chip:hover { background: var(--color-surface-3); color: var(--color-text); }
.filter-chip[aria-pressed="true"] {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* ============================================================
   Dialog / Modal
   ============================================================ */
dialog {
  border: none;
  border-radius: var(--radius-xl);
  padding: 0;
  max-width: min(32rem, calc(100vw - 2rem));
  box-shadow: var(--shadow-lg);
  background: var(--color-surface);
  color: var(--color-text);
}
dialog::backdrop {
  background: rgb(0 0 0 / 0.5);
  backdrop-filter: blur(2px);
}
.dialog-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
}
.dialog-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}
.dialog-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   Alert banner (cert expiry, etc.)
   ============================================================ */
.alert-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}
.alert-banner--warning {
  background: var(--color-warning-light);
  color: #92400e;
  border-bottom: 1px solid #fde68a;
}
.alert-banner--danger {
  background: var(--color-danger-light);
  color: #991b1b;
  border-bottom: 1px solid #fecaca;
}

/* ============================================================
   Tabs (accessible)
   ============================================================ */
.tab-list {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}
.tab-btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn[aria-selected="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-panel { display: none; }
.tab-panel.is-active { display: block; }

/* ============================================================
   Login page specific
   ============================================================ */
.login-page {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
}
.login-card {
  width: 100%;
  max-width: 26rem;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.login-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.035em;
  color: var(--color-text);
  text-align: center;
}
.login-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-align: center;
}

/* ============================================================
   Responsive overrides
   ============================================================ */
@media (max-width: 768px) {
  .site-header { padding: 0 var(--space-4); }
  .page-main   { padding: var(--space-4); }
  .center      { padding-inline: var(--space-4); }

  .page-header { flex-direction: column; }

  /* Hide non-essential nav items on mobile */
  .nav-link--desktop-only { display: none; }
}