/* ============================================================
   base.css — Shared variables, reset, background, typography
   TG Forwarder © 2026
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Syne:wght@700;800&display=swap');

:root {
  --bg:      #080c10;
  --surface: #0d1117;
  --panel:   #111820;
  --border:  #1e2d3d;
  --text:    #c9d1d9;
  --muted:   #4a5568;
  --accent:  #00d4ff;
  --accent2: #57c785;
  --warn:    #ffa500;
  --danger:  #ff4757;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  min-height: 100vh;
}

/* Cyber-grid overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Typography ── */
h1, h2, h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
}

/* ── Scrollbar ── */
::-webkit-scrollbar       { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Footer ── */
.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 500;
  text-align: center;
  padding: 10px 20px;
  background: rgba(8, 12, 16, 0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.5px;
}

/* ── Shared button base ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }
.btn-sm       { padding: 6px 13px; font-size: 11px; }

.btn-primary { background: linear-gradient(135deg, var(--accent), #0088cc); color: #000; }
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); box-shadow: 0 0 20px rgba(0,212,255,0.3); }

.btn-success { background: linear-gradient(135deg, var(--accent2), #00aa55); color: #000; }
.btn-success:hover { opacity: 0.85; transform: translateY(-1px); }

.btn-danger { background: rgba(255,71,87,0.1); border: 1px solid rgba(255,71,87,0.3); color: var(--danger); }
.btn-danger:hover { background: rgba(255,71,87,0.2); }

.btn-warn { background: rgba(255,165,0,0.1); border: 1px solid rgba(255,165,0,0.3); color: var(--warn); }
.btn-warn:hover { background: rgba(255,165,0,0.2); }

.btn-ghost { background: var(--panel); border: 1px solid var(--border); color: var(--muted); }
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }

/* ── Shared form elements ── */
label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 6px;
  margin-top: 14px;
}
label:first-child { margin-top: 0; }

input, textarea, select {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s;
  margin-bottom: 14px;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
input::placeholder, textarea::placeholder { color: var(--muted); }
textarea { resize: vertical; min-height: 100px; }
select option { background: var(--panel); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 22px;
  font-size: 12px;
  z-index: 9999;
  transition: transform 0.3s;
  white-space: nowrap;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  backdrop-filter: blur(4px);
}
.modal-overlay.visible { opacity: 1; pointer-events: all; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  width: 100%;
  max-width: 460px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-title  { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 800; margin-bottom: 20px; }
.modal-close  { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--muted); cursor: pointer; font-size: 18px; line-height: 1; padding: 4px; }
.modal-close:hover { color: var(--danger); }

/* ── Animations ── */
@keyframes slideIn { from { opacity:0; transform: translateX(-8px); } to { opacity:1; transform: none; } }
@keyframes fadeIn  { from { opacity:0; } to { opacity:1; } }