/* ========================================
   Roommate Dekho - Enterprise Design System
   Theme: Production-Grade, Corporate Blue, Investor-Ready
   ======================================== */

/* === CSS Variables & Design Tokens === */
:root {
  /* Brand Colors - Standard Corporate Palette */
  --primary: #0056D2;
  /* LinkedIn/Facebook Blue - High Trust */
  --primary-hover: #00419E;
  --primary-light: #EBF4FF;

  --secondary: #5E6C84;
  /* Slate Grey - Secondary Text/Icons */
  --secondary-bg: #F4F5F7;
  /* Light Grey Background */

  /* Standard Status Colors */
  --success: #36B37E;
  /* Jira Green */
  --warning: #FFAB00;
  /* Jira Yellow */
  --danger: #FF5630;
  /* Jira Red */
  --info: #0065FF;
  /* Info Blue */

  /* Backgrounds */
  --bg-body: #FFFFFF;
  /* Clean White Body */
  --bg-surface: #FFFFFF;
  /* White Cards */
  --bg-highlight: #F4F5F7;
  /* Muted Section Background */

  /* Text Colors */
  --text-heading: #172B4D;
  /* Dark Navy - Headings */
  --text-body: #42526E;
  /* Slate Grey - Body Text */
  --text-muted: #6B778C;
  /* Muted Text */
  --text-on-primary: #FFFFFF;

  /* Borders & Dividers */
  --border-color: #DFE1E6;
  /* Light Divider */
  --border-focus: #4C9AFF;
  /* Focus Ring */

  /* Spacing Scale (8px Grid) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Typography - System Fonts for Stability */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* === Global Reset & Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-body);
  line-height: 1.5;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text-heading);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

p {
  margin-bottom: var(--space-md);
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

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

/* === Layout Components === */
.container {
  width: 100%;
  max-width: 1140px;
  /* Standard Bootstrap width */
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-bg {
  background-color: var(--bg-highlight);
}

/* === Navbar === */
.navbar {
  height: 64px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-link {
  color: var(--text-heading);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: 4px;
  transition: background 0.2s;
}

.nav-link:hover {
  background-color: var(--bg-highlight);
  text-decoration: none;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 4px;
  /* Slight rounding for professional look */
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.2;
  border: 1px solid transparent;
  text-decoration: none !important;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-on-primary);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
  background-color: var(--bg-highlight);
  border-color: var(--secondary);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.0625rem;
}

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

/* === Cards === */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  /* Standard radius */
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  /* Minimal shadow */
  transition: box-shadow 0.2s;
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-highlight);
}

.card-body {
  padding: var(--space-lg);
}

.card-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
  background-color: #FAFBFC;
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
}

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

.form-label {
  display: block;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 6px;
  font-size: 0.875rem;
}

.form-input,
.form-select {
  display: block;
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-heading);
  background-color: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: 4px;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-input:focus,
.form-select:focus {
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(0, 86, 210, 0.15);
}

.form-hint {
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* === Grid System === */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* === Workflow / Progress === */
.progress-bar-container {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  position: relative;
}

.progress-bar-line {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--border-color);
  z-index: 0;
  transform: translateY(-50%);
}

.progress-step {
  position: relative;
  z-index: 1;
  background: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 10px;
}

.step-indicator {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-highlight);
  border: 2px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-bottom: 8px;
  transition: all 0.3s;
}

.progress-step.active .step-indicator,
.progress-step.complete .step-indicator {
  background-color: var(--primary);
  border-color: var(--primary);
  color: white;
}

.step-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.progress-step.active .step-label {
  color: var(--primary);
}

/* === Utilities === */
.text-center {
  text-align: center;
}

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

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

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

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

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

.flex-gap-md {
  display: flex;
  gap: var(--space-md);
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 4px;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary);
}

.badge-success {
  background-color: #E3FCEF;
  color: #006644;
}

/* === Responsive === */
@media (max-width: 768px) {

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  .navbar {
    height: auto;
    padding: 10px 0;
  }

  .container {
    padding: 0 16px;
  }
}