/* ==========================================================================
   Canadian Immigration Client Portal — Stylesheet
   Design tokens: Deep navy (#26374A), white, gold accent (#FFD100),
   success green (#278400), error red (#D3080C)
   ========================================================================== */

:root {
  --color-primary: #26374A;
  --color-primary-dark: #1A2733;
  --color-primary-light: #3B5273;
  --color-accent: #FFD100;
  --color-white: #FFFFFF;
  --color-bg: #F5F6F8;
  --color-border: #D9DCE1;
  --color-text: #1A1A1A;
  --color-text-muted: #565959;
  --color-success: #278400;
  --color-success-bg: #E6F2E0;
  --color-warning: #B36F00;
  --color-warning-bg: #FFF3E0;
  --color-error: #D3080C;
  --color-error-bg: #FBE7E8;
  --color-info: #284162;
  --color-info-bg: #E4EBF5;

  --font-heading: 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --font-body: 'Noto Sans', 'Segoe UI', Helvetica, Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);

  --max-width: 1200px;
  --header-height: 64px;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* Visible focus state for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page-main {
  min-height: calc(100vh - var(--header-height) - 220px);
  padding: 2rem 0 3rem;
}

.flex {
  display: flex;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.5rem; }

.hidden { display: none !important; }

/* ==========================================================================
   Top Banner (Government identity bar)
   ========================================================================== */

.gov-banner {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  font-size: 0.8125rem;
  padding: 0.4rem 0;
}

.gov-banner .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gov-banner a {
  color: var(--color-white);
  text-decoration: none;
}

.gov-banner a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */

.site-header {
  background-color: var(--color-white);
  border-bottom: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-primary-dark);
}

.brand-logo {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text .brand-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
}

.brand-text .brand-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.main-nav a {
  color: var(--color-primary-dark);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  border-bottom: 3px solid transparent;
}

.main-nav a:hover,
.main-nav a.active {
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-primary-dark);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
  padding: 0.7rem 1.5rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  line-height: 1.2;
}

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

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

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

.btn-accent:hover {
  background-color: #E6BC00;
  border-color: #E6BC00;
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-white);
  border-color: var(--color-error);
}

.btn-danger:hover {
  background-color: #A60609;
  border-color: #A60609;
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.8125rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
  color: var(--color-white);
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 360px;
  height: 360px;
  background: var(--color-accent);
  opacity: 0.08;
  border-radius: 50%;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 1rem;
}

.card-header h2,
.card-header h3 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  font-weight: 700;
  word-break: break-word;
}

.stat-card.accent {
  border-left-color: var(--color-accent);
}

.stat-card.success {
  border-left-color: var(--color-success);
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-section {
  margin-bottom: 2rem;
}

.form-section-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary-dark);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

label .required {
  color: var(--color-error);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="number"],
input[type="file"],
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-text);
  width: 100%;
  transition: border-color 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
}

input.input-error,
select.input-error,
textarea.input-error {
  border-color: var(--color-error);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

.field-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.field-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  font-weight: 600;
}

fieldset {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

legend {
  font-weight: 700;
  color: var(--color-primary-dark);
  padding: 0 0.4rem;
}

/* ==========================================================================
   Alerts / Notices
   ========================================================================== */

.alert {
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  border-left: 5px solid var(--color-info);
  background-color: var(--color-info-bg);
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

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

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

.alert-error {
  border-left-color: var(--color-error);
  background-color: var(--color-error-bg);
}

.alert strong {
  display: block;
  margin-bottom: 0.25rem;
}

/* ==========================================================================
   Badges / Status pills
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background-color: var(--color-border);
  color: var(--color-text);
}

.badge-draft { background-color: #E5E7EB; color: #374151; }
.badge-submitted { background-color: var(--color-info-bg); color: var(--color-info); }
.badge-under-review { background-color: var(--color-warning-bg); color: var(--color-warning); }
.badge-additional-documents-required { background-color: #FDE8E8; color: #B91C1C; }
.badge-approved { background-color: var(--color-success-bg); color: var(--color-success); }
.badge-refused { background-color: var(--color-error-bg); color: var(--color-error); }
.badge-completed { background-color: #DCEFE3; color: #166534; }

.badge-pending { background-color: var(--color-warning-bg); color: var(--color-warning); }
.badge-approved-doc { background-color: var(--color-success-bg); color: var(--color-success); }
.badge-rejected { background-color: var(--color-error-bg); color: var(--color-error); }
.badge-replaced { background-color: #E5E7EB; color: #374151; }
.badge-accent { background-color: var(--color-accent); color: var(--color-primary-dark); }

.badge-completed-pay { background-color: var(--color-success-bg); color: var(--color-success); }
.badge-pending-pay { background-color: var(--color-warning-bg); color: var(--color-warning); }
.badge-failed-pay { background-color: var(--color-error-bg); color: var(--color-error); }
.badge-paid { background-color: var(--color-success-bg); color: var(--color-success); }
.badge-cancelled { background-color: #E5E7EB; color: #374151; }

/* ==========================================================================
   Application Progress Tracker
   ========================================================================== */

.progress-tracker {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 1.5rem 0;
}

.progress-step {
  flex: 1;
  min-width: 120px;
  text-align: center;
  position: relative;
  padding: 0 0.5rem;
}

.progress-step .step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-white);
  border: 3px solid var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 0.5rem;
  position: relative;
  z-index: 2;
}

.progress-step::before {
  content: '';
  position: absolute;
  top: 18px;
  left: -50%;
  right: 50%;
  height: 3px;
  background-color: var(--color-border);
  z-index: 1;
}

.progress-step:first-child::before {
  display: none;
}

.progress-step.completed .step-circle {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-white);
}

.progress-step.completed::before {
  background-color: var(--color-success);
}

.progress-step.current .step-circle {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.progress-step.refused .step-circle {
  background-color: var(--color-error);
  border-color: var(--color-error);
  color: var(--color-white);
}

.progress-step .step-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

@media (max-width: 700px) {
  .progress-tracker {
    flex-direction: column;
    gap: 1rem;
  }
  .progress-step::before {
    display: none;
  }
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
  font-size: 0.9375rem;
}

thead {
  background-color: var(--color-primary);
  color: var(--color-white);
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

tbody tr:hover {
  background-color: var(--color-bg);
}

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

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ==========================================================================
   Auth Pages
   ========================================================================== */

.auth-wrapper {
  display: flex;
  min-height: calc(100vh - var(--header-height) - 180px);
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 460px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.auth-card.wide {
  max-width: 900px;
}

.auth-card h1 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.auth-card .auth-subtitle {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.auth-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.9375rem;
}

/* ==========================================================================
   File Upload List
   ========================================================================== */

.upload-field {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  background-color: var(--color-bg);
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.file-item .file-name {
  font-weight: 600;
  word-break: break-all;
}

.file-item .file-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Sidebar Dashboard Layout
   ========================================================================== */

.dashboard-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.dashboard-sidebar {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  position: sticky;
  top: calc(var(--header-height) + 1rem);
}

.dashboard-sidebar .sidebar-id {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  margin-bottom: 1rem;
}

.dashboard-sidebar .sidebar-id .id-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
}

.dashboard-sidebar .sidebar-id .id-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  word-break: break-all;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background-color: var(--color-bg);
  color: var(--color-primary);
}

.sidebar-nav a.active {
  border-left: 4px solid var(--color-primary);
}

@media (max-width: 900px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  .dashboard-sidebar {
    position: static;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 2rem 0;
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-grid h3 {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.footer-grid a {
  color: rgba(255, 255, 255, 0.85);
  display: block;
  margin-bottom: 0.4rem;
  text-decoration: none;
}

.footer-grid a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1rem;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 39, 51, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
}

.modal {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-header h2 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner.dark {
  border: 3px solid rgba(38, 55, 74, 0.2);
  border-top-color: var(--color-primary);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 800px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 1.85rem;
  }

  .gov-banner .container {
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
    padding: 0.4rem 0;
  }
}

@media (max-width: 500px) {
  .hero {
    padding: 2rem 0;
  }

  .auth-card {
    padding: 1.25rem;
  }
}