/* ============================================
   КИТАЙ ВСЁ ПО ДЕЛУ — Base Styles
   Depends on: variables.css
   ============================================ */


/* ————————————————————————————————————————————
   1. Body
   ———————————————————————————————————————————— */

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-dark);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}


/* ————————————————————————————————————————————
   2. Typography
   ———————————————————————————————————————————— */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin: 0 0 var(--space-4);
  color: var(--color-dark);
}

h1 { font-size: var(--font-size-7xl); }
h2 { font-size: var(--font-size-6xl); }
h3 { font-size: var(--font-size-4xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin: 0 0 var(--space-4);
  line-height: var(--line-height-normal);
}

strong, b {
  font-weight: var(--font-weight-semibold);
}

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


/* ————————————————————————————————————————————
   3. Links
   ———————————————————————————————————————————— */

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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


/* ————————————————————————————————————————————
   4. Buttons
   ———————————————————————————————————————————— */

/* Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  line-height: 1;
  min-height: 44px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base);
  user-select: none;
}

/* Variants */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

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

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

.btn--outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

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

.btn--white:hover {
  background-color: var(--color-gray-bg);
}

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

.btn--danger:hover {
  opacity: 0.9;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-gray);
}

.btn--ghost:hover {
  color: var(--color-dark);
}

/* Sizes */
.btn--sm {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.btn--lg {
  padding: 14px 28px;
  font-size: var(--font-size-lg);
  min-height: 52px;
}

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

/* Disabled */
.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}


/* ————————————————————————————————————————————
   5. Form Elements
   ———————————————————————————————————————————— */

/* Text input / textarea base */
.input {
  display: block;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-dark);
  background-color: var(--color-white);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.input::placeholder {
  color: var(--color-gray-light);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Error state */
.input--error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-light);
}

.input--error:focus {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-light);
}

/* Input group */
.input-group {
  margin-bottom: var(--space-4);
}

/* Label */
.input-label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--color-dark);
}

/* Error text */
.input-error-text {
  color: var(--color-danger);
  font-size: var(--font-size-xs);
  margin-top: var(--space-1);
}

/* Textarea */
textarea.input {
  min-height: 120px;
  resize: vertical;
  line-height: var(--line-height-normal);
}

/* Checkbox & Radio */
.checkbox,
.radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: var(--font-size-base);
  user-select: none;
}

.checkbox input[type="checkbox"],
.radio input[type="radio"] {
  width: 18px;
  height: 18px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--color-primary);
}

/* Select */
.select {
  display: block;
  width: 100%;
  padding: 12px 40px 12px 12px;
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-dark);
  background-color: var(--color-white);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23808080' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}


/* ————————————————————————————————————————————
   6. Badges
   ———————————————————————————————————————————— */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  white-space: nowrap;
}

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

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

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

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

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


/* ————————————————————————————————————————————
   7. Container
   ———————————————————————————————————————————— */

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}


/* ————————————————————————————————————————————
   8. Utility Classes
   ———————————————————————————————————————————— */

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

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

/* Text truncation with ellipsis */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}