/**
 * SATÍS Directory - Professional Light Theme
 * Clean, accessible design for behavioral analyst directory
 */

/* ============================================
   DESIGN TOKENS - LIGHT THEME
   ============================================ */
:root {
  /* Colors - Light Professional Theme */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #e9ecef;
  --color-bg-elevated: #ffffff;

  --color-surface: #ffffff;
  --color-surface-hover: #f8f9fa;
  --color-surface-active: #e9ecef;

  --color-border: #dee2e6;
  --color-border-light: #e9ecef;
  --color-border-focus: #0d6efd;

  --color-text-primary: #212529;
  --color-text-secondary: #6c757d;
  --color-text-tertiary: #adb5bd;
  --color-text-muted: #ced4da;

  --color-primary: #0d6efd;
  --color-primary-hover: #0b5ed7;
  --color-primary-light: #3d8bfd;
  --color-primary-bg: #cfe2ff;

  --color-success: #198754;
  --color-success-bg: #d1e7dd;
  --color-success-text: #0f5132;

  --color-error: #dc3545;
  --color-error-bg: #f8d7da;
  --color-error-text: #842029;

  --color-warning: #ffc107;
  --color-warning-bg: #fff3cd;
  --color-warning-text: #664d03;

  --color-info: #0dcaf0;
  --color-info-bg: #cff4fc;
  --color-info-text: #055160;

  /* Shadows for depth */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Typography */
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  /* 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;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  min-height: 100vh;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-3xl); letter-spacing: -0.02em; }
h2 { font-size: var(--font-size-2xl); letter-spacing: -0.01em; }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong, b { font-weight: var(--font-weight-semibold); }
em, i { font-style: italic; }

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

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-bg-tertiary);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-6);
}

.wrap-narrow {
  max-width: 600px;
}

.wrap-wide {
  max-width: 1400px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  text-decoration: none;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--color-bg-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

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

.btn-outline-primary:hover {
  background: var(--color-primary);
  color: white;
  text-decoration: none;
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-lg);
}

button, [type="submit"], [type="button"] {
  font: inherit;
}

/* ============================================
   FORMS
   ============================================ */
.field {
  margin-bottom: var(--space-5);
}

label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--color-text-primary);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

input:disabled,
textarea:disabled,
select:disabled {
  opacity: 0.6;
  background: var(--color-bg-secondary);
  cursor: not-allowed;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input[type="file"] {
  padding: var(--space-2);
  font-size: var(--font-size-sm);
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.checkbox label {
  margin-bottom: 0;
  cursor: pointer;
  user-select: none;
}

.error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-error-text);
}

.help-text {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   GRID SYSTEM
   ============================================ */
.grid {
  display: grid;
  gap: var(--space-4);
}

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

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .col-span-2,
  .col-span-3,
  .col-span-4 {
    grid-column: span 1;
  }
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.card-profile {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.card-profile .photo {
  flex-shrink: 0;
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-tertiary);
  border: 2px solid var(--color-border-light);
}

.card-profile .photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-profile .placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-2xl);
}

.card-profile .body {
  flex: 1;
  min-width: 0;
}

.card-profile .name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.card-profile .title {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

.card-profile .meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.card-profile .contact {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card-profile .contact a {
  color: var(--color-primary);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-full);
}

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

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.badge-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  border: 1px solid transparent;
}

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

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

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

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  background: white;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

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

.nav-link {
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

/* Navbar Logo */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.navbar-logo {
  height: 40px;
  width: auto;
}

.navbar-brand-text h2 {
  margin: 0;
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
}

.navbar-brand-text p {
  margin: 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* Language Switcher */
.language-switcher {
  position: relative;
}

.language-button {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.language-button:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

.language-flag {
  font-size: var(--font-size-base);
}

/* User Dropdown */
.user-dropdown {
  position: relative;
}

.user-menu-button {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.user-menu-button:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  z-index: 1000;
}

.dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--color-border-light);
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item:hover {
  background: var(--color-bg-secondary);
  text-decoration: none;
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: 0;
}

/* ============================================
   FILTERS
   ============================================ */
.filters {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-muted { color: var(--color-text-muted); }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.hidden { display: none; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .wrap {
    padding: var(--space-4);
  }

  .card-profile {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .card-profile .photo {
    width: 120px;
    height: 120px;
  }

  .navbar-nav {
    flex-direction: column;
    width: 100%;
  }

  .navbar-logo {
    height: 32px;
  }

  .navbar-brand-text h2 {
    font-size: var(--font-size-lg);
  }

  .navbar-brand-text p {
    display: none;
  }

  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
}

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