/* === Common styles — VK Automation === */

:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --accent: #10b981;
  --accent-hover: #059669;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --warning: #f59e0b;

  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  --bg: #f8fafc;
  --bg-white: #ffffff;
  --bg-card: #ffffff;

  --border: #e2e8f0;
  --border-focus: #6366f1;

  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border: none; border-radius: var(--radius); font-family: var(--font); font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.15s ease; text-decoration: none; line-height: 1.4; }
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-hover); }
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-hover); }
.btn--danger { background: var(--danger); color: #fff; }
.btn--danger:hover { background: var(--danger-hover); }
.btn--outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn--outline:hover { background: var(--primary-light); }
.btn--ghost { background: transparent; color: var(--text-secondary); }
.btn--ghost:hover { background: var(--bg); color: var(--text); }
.btn--full { width: 100%; }
.btn--lg { padding: 14px 28px; font-size: 16px; border-radius: var(--radius-lg); }
.btn--sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Card */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.form-input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 14px; color: var(--text); background: var(--bg-white); transition: border-color 0.15s ease; }
.form-input:focus { outline: none; border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.form-input::placeholder { color: var(--text-muted); }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }

/* Alert */
.alert { padding: 12px 16px; border-radius: var(--radius); font-size: 14px; margin-bottom: 16px; }
.alert--error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert--success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert--info { background: var(--primary-light); color: #3730a3; border: 1px solid #c7d2fe; }
.alert--warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

/* Badge */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 100px; font-size: 12px; font-weight: 600; }
.badge--primary { background: var(--primary-light); color: var(--primary); }
.badge--accent { background: #ecfdf5; color: var(--accent); }
.badge--warning { background: #fffbeb; color: #b45309; }
.badge--danger { background: #fef2f2; color: var(--danger); }
.badge--outline { background: var(--bg); color: var(--text-secondary); border: 1px solid var(--border); }

/* Spinner */
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: 13px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.hidden { display: none !important; }

@media (max-width: 768px) { .container { padding: 0 16px; } }