/* ============================================================
   СОПС — общие стили + CSS-переменные + тёмная тема
   ============================================================ */

:root {
  --color-primary:    #1a73e8;
  --color-primary-h:  #1558b0;
  --color-danger:     #e8453c;
  --color-success:    #34a853;
  --color-warning:    #fbbc04;
  --color-text:       #202124;
  --color-text-sec:   #5f6368;
  --color-border:     #dadce0;
  --color-bg:         #f8f9fa;
  --color-surface:    #ffffff;
  --color-surface2:   #f1f3f4;
  --shadow-sm:        0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:        0 4px 12px rgba(0,0,0,.15);
  --radius:           8px;
  --radius-lg:        12px;
  --font:             system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

[data-theme="dark"] {
  --color-text:       #e8eaed;
  --color-text-sec:   #9aa0a6;
  --color-border:     #3c4043;
  --color-bg:         #202124;
  --color-surface:    #292a2d;
  --color-surface2:   #35363a;
  --shadow-sm:        0 1px 3px rgba(0,0,0,.4);
  --shadow-md:        0 4px 12px rgba(0,0,0,.5);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Кнопки ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: .9375rem;
  font-weight: 500;
  transition: background .15s, opacity .15s, transform .1s;
  user-select: none;
  text-decoration: none;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-primary   { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-h); text-decoration: none; }
.btn-danger    { background: var(--color-danger); color: #fff; }
.btn-secondary {
  background: var(--color-surface2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { background: var(--color-border); }
.btn-ghost { background: transparent; color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-surface2); }
.btn-sm { padding: 6px 14px; font-size: .875rem; }
.btn-block { width: 100%; }

/* ---- Формы ---- */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--color-text-sec);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 1rem;
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,.15);
}
.form-error {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: rgba(232,69,60,.1);
  color: var(--color-danger);
  font-size: .9rem;
}

/* ---- Модальные окна ---- */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
}
.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* ---- Тёмная тема: кнопка переключения ---- */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 6px;
  border-radius: 50%;
  transition: background .15s;
  color: var(--color-text-sec);
}
.theme-toggle:hover { background: var(--color-surface2); }

/* ---- Spinner ---- */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Бейдж уведомлений ---- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px; height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--color-danger);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
}