@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ============================================
   AI Ассистент Авито — Premium SaaS Design System
   ============================================ */

:root {
  /* Premium Dark Mode Colors */
  --bg-primary: #05050A;
  --bg-secondary: #0A0A12;
  --bg-surface: rgba(18, 18, 28, 0.6);
  --bg-surface-hover: rgba(26, 26, 40, 0.8);
  
  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: #9AA0A6;
  --text-muted: #6B7280;

  /* Accent Gradients (Neon Purple -> Cyan) */
  --accent-color: #7B2CBF;
  --accent-gradient: linear-gradient(135deg, #7B2CBF 0%, #219EBC 100%);
  --accent-gradient-hover: linear-gradient(135deg, #9D4EDD 0%, #00B4D8 100%);
  --accent-glow: 0 0 24px rgba(123, 44, 191, 0.4);

  /* Status Colors */
  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #EF4444;
  --danger-bg: rgba(239, 68, 68, 0.1);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.02);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-blur: blur(20px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-round: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Typography ─────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(123, 44, 191, 0.08), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(33, 158, 188, 0.08), transparent 25%);
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .brand-font {
  font-family: 'Montserrat', sans-serif;
  letter-spacing: -0.02em;
}

a { color: #219EBC; text-decoration: none; transition: all var(--transition-fast); }
a:hover { color: #00B4D8; }

/* ── Scrollbar ──────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Buttons ────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius-md);
  font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 14px;
  cursor: pointer; transition: all var(--transition-base);
  border: none; outline: none; position: relative; overflow: hidden;
}

.btn-primary { background: var(--accent-gradient); color: #fff; box-shadow: 0 4px 15px rgba(123, 44, 191, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(123, 44, 191, 0.5); background: var(--accent-gradient-hover); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary { background: var(--bg-surface); color: var(--text-primary); border: 1px solid var(--glass-border); backdrop-filter: var(--glass-blur); }
.btn-secondary:hover { background: var(--bg-surface-hover); border-color: rgba(255, 255, 255, 0.15); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }

.btn-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.btn-danger:hover { background: rgba(239, 68, 68, 0.2); }

.btn-sm { padding: 6px 16px; font-size: 13px; border-radius: var(--radius-sm); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: var(--radius-lg); font-weight: 700; }

/* ── Inputs & Forms ─────────────────────────── */
.input, input[type="text"], input[type="email"], input[type="password"], input[type="search"], textarea, select {
  width: 100%; padding: 12px 16px; background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  color: var(--text-primary); font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 500;
  transition: all var(--transition-base); box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.input:focus, input[type="text"]:focus, input[type="password"]:focus, textarea:focus, select:focus {
  border-color: rgba(123, 44, 191, 0.5);
  box-shadow: 0 0 0 3px rgba(123, 44, 191, 0.15), inset 0 2px 4px rgba(0,0,0,0.1);
  background: rgba(0, 0, 0, 0.3); outline: none;
}

label { display: block; font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.form-group { margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.settings-note { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ── Animations ─────────────────────────────── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Badges ─────────────────────────────────── */
.badge { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: var(--radius-round); font-size: 11px; font-weight: 700; font-family: 'Montserrat', sans-serif; text-transform: uppercase; letter-spacing: 0.05em; }
.badge-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16,185,129,0.2); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245,158,11,0.2); }
.badge-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.badge-neutral { background: rgba(255,255,255,0.05); color: var(--text-secondary); border: 1px solid var(--glass-border); }

/* ── Toast Notifications ────────────────────── */
.toast-container { position: fixed; top: 24px; right: 24px; z-index: 10000; display: flex; flex-direction: column; gap: 12px; pointer-events: none; }
.toast { pointer-events: auto; display: flex; align-items: center; gap: 12px; padding: 16px 24px; background: rgba(15, 15, 20, 0.9); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-md); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5); animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); font-family: 'Inter', sans-serif; font-size: 14px; }
.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-info { border-left: 4px solid #00E5FF; }

@keyframes slideInRight { from { opacity: 0; transform: translateX(100px); } to { opacity: 1; transform: translateX(0); } }
.toast.hiding { animation: slideOutRight 0.3s forwards; }
@keyframes slideOutRight { to { opacity: 0; transform: translateX(120%); } }

/* ── Spinners ───────────────────────────────── */
.spinner { width: 24px; height: 24px; border: 3px solid rgba(255,255,255,0.1); border-top-color: var(--text-primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty State ────────────────────────────── */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 24px; text-align: center; }
.empty-state-icon { font-size: 48px; margin-bottom: 20px; opacity: 0.5; filter: drop-shadow(0 0 10px rgba(255,255,255,0.1)); }
.empty-state-title { font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.empty-state-text { font-size: 14px; color: var(--text-muted); max-width: 300px;}