/* ============================================================
   Telegram Translator Bot – Shared Styles
   Aesthetic: Industrial precision + digital clarity
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Sora:wght@300;400;600;700&display=swap');

:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #0f1420;
  --bg-card: #131928;
  --bg-elevated: #1a2235;
  --border: rgba(99, 179, 237, 0.12);
  --border-accent: rgba(99, 179, 237, 0.35);

  --text-primary: #e8edf5;
  --text-secondary: #8a9ab5;
  --text-muted: #4a5568;

  --accent: #63b3ed;
  --accent-glow: rgba(99, 179, 237, 0.2);
  --accent-hover: #90cdf4;
  --success: #68d391;
  --warning: #f6ad55;
  --danger: #fc8181;

  --font-display: 'Sora', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 20px rgba(99, 179, 237, 0.15);

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Background pattern ─────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(99, 179, 237, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 110%, rgba(99, 179, 237, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Typography ─────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.2;
}

.mono {
  font-family: var(--font-mono);
}

/* ─── Cards ──────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 179, 237, 0.4);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-accent);
  background: rgba(99, 179, 237, 0.08);
}

.btn-danger {
  background: rgba(252, 129, 129, 0.15);
  color: var(--danger);
  border: 1px solid rgba(252, 129, 129, 0.3);
}

.btn-danger:hover {
  background: rgba(252, 129, 129, 0.25);
}

.btn-sm {
  padding: 0.4rem 0.875rem;
  font-size: 0.8rem;
}

/* ─── Inputs ──────────────────────────────────────────── */
.input {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 0.6rem 0.875rem;
  width: 100%;
  transition: var(--transition);
  outline: none;
}

.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input::placeholder {
  color: var(--text-muted);
}

select.input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a9ab5' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

/* ─── Status badge ────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.badge-success {
  background: rgba(104, 211, 145, 0.15);
  color: var(--success);
  border: 1px solid rgba(104, 211, 145, 0.3);
}

.badge-warning {
  background: rgba(246, 173, 85, 0.15);
  color: var(--warning);
  border: 1px solid rgba(246, 173, 85, 0.3);
}

.badge-danger {
  background: rgba(252, 129, 129, 0.15);
  color: var(--danger);
  border: 1px solid rgba(252, 129, 129, 0.3);
}

.badge-muted {
  background: rgba(74, 85, 104, 0.3);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ─── Pulse dot ───────────────────────────────────────── */
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  position: relative;
  display: inline-block;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--success);
  opacity: 0.4;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.8); opacity: 0; }
}

/* ─── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ─── Utilities ───────────────────────────────────────── */
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }

.hidden { display: none !important; }

/* ─── Fade in animation ──────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* ─── Loading spinner ─────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Toast notifications ─────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-card);
  animation: slideIn 0.3s ease forwards;
  min-width: 280px;
  max-width: 380px;
}

.toast.success { border-color: rgba(104, 211, 145, 0.4); }
.toast.error { border-color: rgba(252, 129, 129, 0.4); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}