:root {
  --flipper-orange: #ff8200;
  --flipper-black: #000000;
  --flipper-gray: #f3f3f3;
  --flipper-text: #1a1a1a;
  --flipper-border: #e0e0e0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Courier New", Courier, monospace;
  color: var(--flipper-text);
  background: #fafafa;
}

img {
  max-width: 100%;
  display: block;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 32px;
  border-bottom: 2px solid var(--flipper-border);
  background: #ffffff;
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
}

.brand-logo {
  width: 110px;
  height: auto;
}

.brand-text h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 1px;
}

.brand-text p {
  margin: 4px 0 0;
  color: #555555;
  font-size: 12px;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  gap: 12px;
}

main {
  padding: 24px 32px 40px;
  display: grid;
  gap: 20px;
}

.panel {
  background: #ffffff;
  border: 2px solid var(--flipper-border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.05);
}

.panel-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
}

.panel-row:last-child {
  margin-bottom: 0;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 220px;
}

.field-wide {
  flex: 1;
  min-width: 260px;
}

label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="time"] {
  padding: 10px 12px;
  border-radius: 10px;
  border: 2px solid var(--flipper-border);
  font-size: 14px;
  font-family: inherit;
}

input[type="date"],
input[type="time"] {
  padding: 8px 10px;
}

.status {
  background: var(--flipper-gray);
  padding: 10px 12px;
  border-radius: 10px;
  border: 2px solid var(--flipper-border);
  min-height: 42px;
  display: flex;
  align-items: center;
}

.btn {
  border: 2px solid var(--flipper-black);
  border-radius: 12px;
  padding: 10px 18px;
  font-family: inherit;
  font-weight: bold;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.btn-primary {
  background: var(--flipper-orange);
  color: var(--flipper-black);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.25);
}

.btn-outline {
  background: #ffffff;
  color: var(--flipper-black);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: none;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 12px;
  border-radius: 10px;
}

.chart-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.chart-header h2 {
  margin: 0;
  font-size: 18px;
}

.chart-header span {
  font-size: 12px;
  color: #666666;
}

/* Time Controls */
.time-controls {
  background: var(--flipper-gray);
  border: 2px solid var(--flipper-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.time-presets {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.preset-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #666;
  white-space: nowrap;
}

.preset-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.preset-btn {
  background: #ffffff;
  border: 2px solid var(--flipper-border);
  border-radius: 8px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 12px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
}

.preset-btn:hover {
  border-color: var(--flipper-orange);
  background: #fff7ec;
}

.preset-btn.active {
  background: var(--flipper-orange);
  border-color: var(--flipper-black);
  color: var(--flipper-black);
}

.time-custom {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.datetime-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.datetime-group label {
  font-size: 11px;
  color: #666;
}

.datetime-inputs {
  display: flex;
  gap: 6px;
}

.datetime-inputs input[type="date"] {
  min-width: 140px;
}

.datetime-inputs input[type="time"] {
  min-width: 100px;
}

.nav-24h {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-nav {
  padding: 8px 16px;
  font-size: 12px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-nav:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.data-range-info {
  font-size: 11px;
  color: #888;
  padding-top: 4px;
  border-top: 1px solid var(--flipper-border);
}

.data-range-info span {
  font-weight: normal;
}

.chart-container {
  position: relative;
  width: 100%;
  min-height: 300px;
}

.chart-container canvas {
  width: 100% !important;
}

.zoom-hint {
  margin: 0;
  font-size: 11px;
  color: #888;
  text-align: center;
}

.info-panel ol {
  padding-left: 18px;
  margin-top: 10px;
}

.note {
  margin-top: 12px;
  padding: 12px;
  background: #fff7ec;
  border: 2px dashed var(--flipper-orange);
  border-radius: 12px;
}

.app-footer {
  display: flex;
  justify-content: space-between;
  padding: 18px 32px;
  border-top: 2px solid var(--flipper-border);
  background: #ffffff;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

@media (max-width: 900px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .header-actions {
    flex-wrap: wrap;
  }

  main {
    padding: 20px;
  }

  .panel-row {
    flex-direction: column;
    align-items: stretch;
  }

  .time-custom {
    flex-direction: column;
    align-items: stretch;
  }

  .datetime-group {
    width: 100%;
  }

  .datetime-inputs {
    flex-wrap: wrap;
  }

  .datetime-inputs input {
    flex: 1;
    min-width: 120px;
  }

  .nav-24h {
    flex-direction: column;
    width: 100%;
  }

  .btn-nav {
    width: 100%;
    justify-content: center;
  }
}