/**
 * I3 Capital Brand Styles
 * Following brandbook.md specifications
 */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
  /* Colors - Primary */
  --color-corporate-blue: #2E5DA6;
  --color-corporate-gray: #8B8B8B;
  --color-charcoal: #1A1A1A;
  --color-white: #FFFFFF;

  /* Colors - Neutral */
  --color-light-gray-bg: #F5F5F5;
  --color-border-gray: #E0E0E0;
  --color-medium-gray: #6B6B6B;

  /* Colors - Semantic */
  --color-success: #28A745;
  --color-error: #DC3545;
  --color-focus: #2E5DA6;

  /* Typography */
  --font-primary: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

  /* Font Sizes */
  --font-size-display: 48px;
  --font-size-h1: 36px;
  --font-size-h2: 28px;
  --font-size-h3: 22px;
  --font-size-body-lg: 18px;
  --font-size-body: 16px;
  --font-size-body-sm: 14px;
  --font-size-caption: 12px;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing (8px base unit) */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-xxl: 64px;
  --space-xxxl: 96px;

  /* Animation */
  --transition-fast: 0.15s ease-in-out;
  --transition-standard: 0.2s ease-in-out;
  --transition-slow: 0.4s ease-in-out;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-light-gray-bg);
  min-height: 100vh;
}

/* ========================================
   Layout - Login Page
   ======================================== */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: var(--space-md);
}

.login-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-gray);
  border-radius: 8px;
  padding: var(--space-xl);
  width: 100%;
  max-width: 440px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* ========================================
   Logo
   ======================================== */
.logo-container {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.logo {
  max-width: 280px;
  height: auto;
}

/* ========================================
   Typography
   ======================================== */
h1 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-sm);
  text-align: center;
}

p {
  color: var(--color-medium-gray);
  font-size: var(--font-size-body);
  margin-bottom: var(--space-md);
  text-align: center;
}

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

label {
  display: block;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-xs);
}

input[type="password"],
input[type="text"] {
  width: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border-gray);
  border-radius: 4px;
  padding: 12px 16px;
  font-size: var(--font-size-body);
  font-family: var(--font-primary);
  color: var(--color-charcoal);
  transition: border-color var(--transition-standard);
}

input[type="password"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--color-corporate-blue);
  box-shadow: 0 0 0 3px rgba(46, 93, 166, 0.1);
}

input[type="password"].error,
input[type="text"].error {
  border-color: var(--color-error);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  width: 100%;
  background: var(--color-corporate-blue);
  color: var(--color-white);
  padding: 12px 32px;
  border: none;
  border-radius: 4px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-primary);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-standard);
}

.btn:hover {
  background: #234879;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(46, 93, 166, 0.2);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus {
  outline: 2px solid var(--color-corporate-blue);
  outline-offset: 2px;
}

.btn:disabled {
  background: var(--color-border-gray);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ========================================
   Flash Messages
   ======================================== */
.flash-messages {
  margin-bottom: var(--space-md);
}

.flash-message {
  padding: 12px 16px;
  border-radius: 4px;
  font-size: var(--font-size-body-sm);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.flash-message.success {
  background: rgba(40, 167, 69, 0.1);
  color: #1e7e34;
  border: 1px solid rgba(40, 167, 69, 0.3);
}

.flash-message.error {
  background: rgba(220, 53, 69, 0.1);
  color: #c82333;
  border: 1px solid rgba(220, 53, 69, 0.3);
}

/* ========================================
   Dashboard
   ======================================== */
.dashboard-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border-gray);
}

.dashboard-header h1 {
  text-align: left;
  margin-bottom: 0;
}

.logout-link {
  color: var(--color-corporate-blue);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: color var(--transition-standard);
}

.logout-link:hover {
  color: #234879;
  text-decoration: underline;
}

.dashboard-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-gray);
  border-radius: 8px;
  padding: var(--space-lg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  margin-bottom: var(--space-md);
}

.dashboard-card h2 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-sm);
}

.dashboard-card p {
  text-align: left;
  color: var(--color-medium-gray);
  margin-bottom: 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
  .login-card {
    padding: var(--space-lg);
  }

  .logo {
    max-width: 220px;
  }

  h1 {
    font-size: var(--font-size-h3);
  }

  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
}

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

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-corporate-blue);
  outline-offset: 2px;
}

/* Screen reader only utility class */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}