:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #111827;
  --bg-tertiary: #1e2329;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #fff;
  --text-secondary: rgba(255, 255, 255, 0.5);
  --accent-green: #10b981;
  --accent-cyan: #06b6d4;
  --accent-red: #ef4444;
  --accent-yellow: #f0b90b;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  padding-bottom: 100px;
}

.header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.back-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 4px;
}

.header h1 {
  font-size: 18px;
  font-weight: 700;
}

.add-btn {
  margin-left: auto;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
  color: #000;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.container {
  padding: 16px;
}

.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.alert-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.coin-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
}

.coin-icon.btc {
  background: linear-gradient(135deg, #f7931a, #ffab40);
}

.coin-icon.eth {
  background: linear-gradient(135deg, #627eea, #8c9eff);
}

.coin-icon.xrp {
  background: linear-gradient(135deg, #23292f, #5a6a7a);
}

.coin-icon.sol {
  background: linear-gradient(135deg, #9945ff, #14f195);
}

.alert-info {
  flex: 1;
}

.alert-pair {
  font-weight: 600;
  font-size: 15px;
}

.alert-condition {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.alert-price {
  text-align: right;
}

.alert-target {
  font-weight: 700;
  font-size: 15px;
}

.alert-current {
  font-size: 12px;
  color: var(--text-secondary);
}

.alert-toggle {
  width: 44px;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
}

.alert-toggle.active {
  background: var(--accent-green);
}

.alert-toggle::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform 0.3s;
}

.alert-toggle.active::after {
  transform: translateX(20px);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--accent-orange);
}

.empty-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.empty-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 280px;
  margin: 0 auto;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 100;
  align-items: flex-end;
  justify-content: center;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 500px;
  padding: 24px;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }

  to {
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input,
.form-select {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 14px;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-yellow);
}

.condition-btns {
  display: flex;
  gap: 8px;
}

.condition-btn {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.condition-btn.active {
  border-color: var(--accent-yellow);
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-yellow);
}

.submit-btn {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(90deg, var(--accent-yellow), var(--accent-orange));
  color: #000;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  margin-top: 8px;
}