/* ===== BASE STYLES - شاه ترند ===== */
/* Import design tokens */
@import url('./tokens.css');

/* ===== RESET LAYER ===== */
/* Modern CSS Reset for Maximum Compatibility */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video, canvas, iframe {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  margin: 0;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ===== BASE DROPDOWN STYLES ===== */
/* Universal dropdown base styles */
.ui.dropdown {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.ui.dropdown .menu {
  display: none;
  position: absolute;
  z-index: var(--z-index-dropdown);
  min-width: 200px;
  background: var(--color-background-primary);

  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  margin-top: var(--spacing-xs);
  padding: var(--spacing-xs) 0;
}

.ui.dropdown:hover .menu,
.ui.dropdown:focus-within .menu,
.ui.dropdown.active .menu {
  display: block;
}

.ui.dropdown .menu .item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-duration) var(--transition-timing);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.ui.dropdown .menu .item:hover {
  background-color: var(--color-background-secondary);
  color: var(--color-text-primary);
}

.ui.dropdown .menu .item.active {
  background-color: var(--color-background-tertiary);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.ui.dropdown .menu .divider {
  height: 1px;
  background-color: var(--color-border-primary);
  margin: var(--spacing-xs) 0;
  border: none;
}

.ui.dropdown .menu .header {
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-background-secondary);
  border-bottom: 1px solid var(--color-border-primary);
}

/* ===== BASE FORM STYLES ===== */
/* Form element base styles */
.ui.form {
  font-size: var(--font-size-base);
}

.ui.form .field {
  margin-bottom: var(--spacing-md);
}

.ui.form .field > label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.ui.form .field > input,
.ui.form .field > textarea,
.ui.form .field > select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  line-height: 1.5;
  transition: all var(--transition-duration) var(--transition-timing);
  background-color: var(--color-background-primary);
  color: var(--color-text-primary);
}

.ui.form .field > input:focus,
.ui.form .field > textarea:focus,
.ui.form .field > select:focus {
  outline: none;
  border-color: var(--color-brand-primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.ui.form .field > input::placeholder,
.ui.form .field > textarea::placeholder {
  color: var(--color-text-tertiary);
}

/* ===== BASE BUTTON STYLES ===== */
/* Button base styles */
.ui.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-duration) var(--transition-timing);
  background-color: var(--color-background-primary);
  color: var(--color-text-primary);
  min-height: 40px;
}

.ui.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.ui.button:active {
  transform: translateY(0);
}

.ui.button.primary {
  background-color: var(--color-brand-primary-blue);
  color: white;
  border-color: var(--color-brand-primary-blue);
}

.ui.button.primary:hover {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
}

.ui.button.secondary {
  background-color: var(--color-background-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}

.ui.button.secondary:hover {
  background-color: var(--color-background-tertiary);
  border-color: var(--color-border-secondary);
}

/* ===== BASE TYPOGRAPHY ===== */
/* Typography base styles */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
  color: var(--color-text-primary);
}

/* ===== BASE UTILITIES ===== */
/* Utility classes for common patterns */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }

/* ===== RESPONSIVE UTILITIES ===== */
/* Responsive display utilities */
@media (max-width: 768px) {
  .d-md-none { display: none; }
  .d-md-block { display: block; }
  .d-md-flex { display: flex; }
}

@media (min-width: 769px) {
  .d-lg-none { display: none; }
  .d-lg-block { display: block; }
  .d-lg-flex { display: flex; }
}