:root {
  --bg: #0f1117;
  --card: #1a1d27;
  --card2: #22263a;
  --accent: #4f6ef7;
  --accent-hover: #3a55d4;
  --danger: #e74c3c;
  --danger-hover: #c0392b;
  --success: #2ecc71;
  --warning: #f39c12;
  --text: #e8eaf0;
  --text-muted: #7a7f9a;
  --border: #2d3148;
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.softphone {
  width: 360px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}

/* Header */
.sp-header {
  background: var(--card2);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.sp-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.sp-brand svg { flex-shrink: 0; }

.sp-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s;
}
.status-dot.registered { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.calling    { background: var(--warning); box-shadow: 0 0 6px var(--warning); animation: pulse 1s infinite; }
.status-dot.error      { background: var(--danger);  box-shadow: 0 0 6px var(--danger); }

@keyframes pulse {
  0%,100% { opacity: 1; } 50% { opacity: 0.4; }
}

/* Extension selector */
.sp-ext {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.sp-ext label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

.ext-row {
  display: flex;
  gap: 10px;
}

.ext-row select {
  flex: 1;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 14px;
  outline: none;
  cursor: pointer;
  appearance: none;
}

.ext-row select:focus { border-color: var(--accent); }

#btn-connect {
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
#btn-connect:hover { background: var(--accent-hover); }
#btn-connect:disabled { opacity: 0.4; cursor: not-allowed; }

/* Display */
.sp-display {
  padding: 16px 20px 10px;
}

#dial-input {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 22px;
  font-weight: 300;
  letter-spacing: 3px;
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}
#dial-input:focus { border-color: var(--accent); }
#dial-input::placeholder { font-size: 14px; letter-spacing: 0; color: var(--text-muted); }

.call-label {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  min-height: 16px;
}

/* Keypad */
.sp-keypad {
  padding: 10px 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.key {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 18px;
  font-weight: 500;
  padding: 14px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  user-select: none;
}
.key:hover { background: #2a2f45; }
.key:active { transform: scale(0.94); background: var(--accent); border-color: var(--accent); }
.key span { font-size: 9px; color: var(--text-muted); margin-top: 3px; letter-spacing: 1px; }
.key:disabled { opacity: 0.3; cursor: not-allowed; }

/* Controls */
.sp-controls {
  padding: 10px 20px 18px;
  display: flex;
  gap: 8px;
}

.btn-call {
  flex: 1;
  background: var(--success);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 13px;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-call:hover { background: #27ae60; }
.btn-call:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-hangup {
  flex: 1;
  background: var(--danger);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 13px;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-hangup:hover { background: var(--danger-hover); }
.btn-hangup:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-mute {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 13px 14px;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-mute:hover { background: #2a2f45; }
.btn-mute.active { background: var(--warning); border-color: var(--warning); }
.btn-mute:disabled { opacity: 0.35; cursor: not-allowed; }

/* Log */
.sp-log {
  border-top: 1px solid var(--border);
  padding: 14px 20px;
  max-height: 160px;
  overflow-y: auto;
}

.sp-log h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.log-empty {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 8px 0;
}

.log-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.log-entry:last-child { border-bottom: none; }

.log-icon { font-size: 14px; flex-shrink: 0; }
.log-info { flex: 1; }
.log-exten { font-weight: 600; }
.log-time { color: var(--text-muted); font-size: 11px; }
.log-duration { color: var(--text-muted); font-size: 11px; margin-left: auto; }

.sp-log::-webkit-scrollbar { width: 4px; }
.sp-log::-webkit-scrollbar-track { background: transparent; }
.sp-log::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* Incoming call overlay */
.incoming-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
  border-radius: var(--radius);
  z-index: 10;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.incoming-overlay.active { display: flex; }

.incoming-text {
  text-align: center;
}
.incoming-text h3 { font-size: 20px; margin-bottom: 4px; }
.incoming-text p { color: var(--text-muted); font-size: 14px; }

.incoming-btns {
  display: flex;
  gap: 16px;
}

.btn-answer {
  background: var(--success);
  border: none;
  border-radius: 50%;
  width: 56px; height: 56px;
  cursor: pointer;
  font-size: 22px;
  transition: background 0.2s, transform 0.1s;
}
.btn-answer:hover { background: #27ae60; transform: scale(1.1); }

.btn-reject {
  background: var(--danger);
  border: none;
  border-radius: 50%;
  width: 56px; height: 56px;
  cursor: pointer;
  font-size: 22px;
  transition: background 0.2s, transform 0.1s;
}
.btn-reject:hover { background: var(--danger-hover); transform: scale(1.1); }

.softphone { position: relative; }