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

body {
  font-family: "Roboto", sans-serif;
  background: #0d1a0d;
  color: #e8f5e9;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 16px;
  background-image: radial-gradient(circle at 20% 20%, #142814 0%, #0a1a0a 90%);
}

.app-surface {
  max-width: 1350px;
  width: 100%;
  background: rgba(18, 30, 18, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 28px;
  padding: 20px 20px 24px;
  box-shadow:
    0 20px 48px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(76, 175, 80, 0.15);
  transition: all 0.2s;
}

.m3-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(76, 175, 80, 0.18);
  flex-wrap: wrap;
}
.m3-header .material-icons-round {
  font-size: 36px;
  color: #81c784;
}
.m3-header h1 {
  font-weight: 500;
  font-size: 24px;
  letter-spacing: 0.2px;
  color: #c8e6c9;
}

.m3-badge {
  font-size: 11px;
  background: rgba(76, 175, 80, 0.2);
  padding: 2px 12px;
  border-radius: 40px;
  color: #a5d6a7;
  margin-left: auto;
}

.m3-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 4px;
  flex-wrap: wrap;
}
.m3-tab {
  background: transparent;
  border: none;
  padding: 10px 20px;
  border-radius: 40px;
  color: #9bcd9b;
  font-weight: 500;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: 0.2s;
  letter-spacing: 0.2px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.m3-tab .material-icons-round {
  font-size: 20px;
}
.m3-tab:hover {
  background: rgba(76, 175, 80, 0.12);
  color: #c8e6c9;
}
.m3-tab.active {
  background: rgba(76, 175, 80, 0.22);
  color: #a5d6a7;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.m3-tab:active {
  transform: scale(0.96);
}

.tab-panels {
  margin-top: 6px;
}
.tab-panel {
  display: none;
  animation: fadeIn 0.25s ease;
}
.tab-panel.active {
  display: block;
}
@keyframes fadeIn {
  0% {
    opacity: 0.4;
    transform: translateY(4px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.m3-card {
  background: rgba(22, 38, 22, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 24px;
  padding: 16px 18px 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(76, 175, 80, 0.12);
  transition: 0.15s;
}
.m3-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 17px;
  color: #b9e0b9;
  margin-bottom: 16px;
  letter-spacing: 0.3px;
  flex-wrap: wrap;
}
.m3-card-title .material-icons-round {
  color: #81c784;
}

.m3-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}
.m3-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px 20px;
}
.m3-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.field label {
  font-size: 13px;
  font-weight: 400;
  color: #a5d6a7;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.field label .material-icons-round {
  font-size: 18px;
  color: #81c784;
  vertical-align: middle;
  display: inline-flex;
  align-items: center;
}

.m3-input {
  background: rgba(8, 18, 8, 0.7);
  border: 1px solid rgba(76, 175, 80, 0.25);
  border-radius: 14px;
  padding: 10px 14px;
  color: #e8f5e9;
  font-size: 15px;
  font-weight: 400;
  transition: 0.2s;
  width: 100%;
  outline: none;
  min-height: 44px;
  -webkit-appearance: none;
  appearance: none;
}
.m3-input:focus {
  border-color: #66bb6a;
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.25);
  background: rgba(12, 26, 12, 0.8);
}
.m3-input::placeholder {
  color: #6e8f6e;
  font-weight: 300;
}
.m3-input:disabled {
  opacity: 0.5;
}

.m3-input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}
.m3-input[type="number"]::-webkit-outer-spin-button,
.m3-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}

.m3-check {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 6px 0;
  color: #c8e6c9;
  user-select: none;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
.m3-check input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: rgba(8, 18, 8, 0.7);
  border-radius: 8px;
  border: 1px solid rgba(76, 175, 80, 0.35);
  cursor: pointer;
  transition: 0.2s;
  flex-shrink: 0;
  position: relative;
  min-width: 22px;
}
.m3-check input[type="checkbox"]:checked {
  background: #4caf50;
  border-color: #4caf50;
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.3);
}
.m3-check input[type="checkbox"]:checked::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #0d1a0d;
  font-size: 16px;
  font-weight: 700;
}
.m3-check input[type="checkbox"]:disabled {
  opacity: 0.4;
}

.m3-btn {
  background: #2e5c2e;
  border: none;
  border-radius: 40px;
  padding: 12px 24px;
  font-weight: 500;
  font-size: 15px;
  color: #e8f5e9;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.3px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.m3-btn .material-icons-round {
  font-size: 20px;
}
.m3-btn:hover:not(:disabled) {
  background: #3c7a3c;
  box-shadow: 0 4px 16px rgba(76, 175, 80, 0.25);
}
.m3-btn:active:not(:disabled) {
  transform: scale(0.96);
}
.m3-btn.primary {
  background: linear-gradient(145deg, #2e7d32, #1b5e20);
  color: white;
}
.m3-btn.primary:hover:not(:disabled) {
  background: linear-gradient(145deg, #388e3c, #2e7d32);
}
.m3-btn.secondary {
  background: linear-gradient(145deg, #00695c, #004d40);
}
.m3-btn.secondary:hover:not(:disabled) {
  background: linear-gradient(145deg, #00897b, #00695c);
}
.m3-btn.danger {
  background: linear-gradient(145deg, #b71c1c, #7f1d1d);
}
.m3-btn.danger:hover:not(:disabled) {
  background: linear-gradient(145deg, #c62828, #b71c1c);
}
.m3-btn:disabled {
  opacity: 0.4;
  pointer-events: none;
  filter: grayscale(0.3);
}

.file-label {
  background: rgba(8, 18, 8, 0.5);
  border-radius: 14px;
  padding: 10px 14px;
  font-size: 14px;
  border: 2px dashed rgba(76, 175, 80, 0.25);
  color: #a5d6a7;
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  transition: 0.2s;
  cursor: default;
}
.file-label .material-icons-round {
  font-size: 20px;
  color: #81c784;
}
.file-label .badge {
  background: rgba(76, 175, 80, 0.2);
  border-radius: 40px;
  padding: 2px 14px;
  font-size: 13px;
}
.file-label.has-files {
  border-color: rgba(76, 175, 80, 0.5);
  background: rgba(8, 28, 8, 0.5);
  border-style: solid;
}
.file-label.drop-zone {
  transition: all 0.2s;
}
.file-label.drag-over {
  border-color: #66bb6a;
  background: rgba(76, 175, 80, 0.15);
  transform: scale(1.01);
}

.bottom-bar {
  background: rgba(10, 20, 10, 0.55);
  backdrop-filter: blur(4px);
  border-radius: 28px;
  padding: 16px 20px;
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.progress-wrap {
  flex: 2;
  min-width: 180px;
}
.progress-bar {
  height: 8px;
  background: #1e321e;
  border-radius: 40px;
  overflow: hidden;
  margin-top: 4px;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #4caf50, #81c784);
  border-radius: 40px;
  transition: width 0.25s ease;
}
.progress-label {
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  color: #a5d6a7;
}
.status-area {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9bcd9b;
  font-size: 14px;
  flex: 1;
  min-width: 120px;
}
.status-area .material-icons-round {
  font-size: 20px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.flex {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.grow {
  flex: 1;
}
.mt-1 {
  margin-top: 8px;
}
.mb-1 {
  margin-bottom: 8px;
}
.text-center {
  text-align: center;
}
.gap-1 {
  gap: 6px;
}

.chip {
  background: rgba(76, 175, 80, 0.12);
  border-radius: 40px;
  padding: 2px 14px;
  font-size: 12px;
  color: #a5d6a7;
}

@media (max-width: 768px) {
  .m3-grid-2,
  .m3-grid-3,
  .m3-grid-4 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .app-surface {
    padding: 14px;
    border-radius: 20px;
  }

  .m3-header h1 {
    font-size: 20px;
  }
  .m3-header .material-icons-round {
    font-size: 28px;
  }

  .m3-tabs {
    gap: 4px;
  }
  .m3-tab {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 38px;
  }
  .m3-tab .material-icons-round {
    font-size: 18px;
  }

  .m3-card {
    padding: 14px;
    border-radius: 20px;
    margin-bottom: 16px;
  }
  .m3-card-title {
    font-size: 16px;
    margin-bottom: 14px;
  }

  .m3-input {
    font-size: 16px;
    padding: 10px 12px;
    min-height: 44px;
    border-radius: 12px;
  }

  .m3-btn {
    padding: 10px 18px;
    font-size: 14px;
    min-height: 40px;
    border-radius: 32px;
    flex: 1;
    justify-content: center;
    min-width: 80px;
  }
  .m3-btn .material-icons-round {
    font-size: 18px;
  }

  .file-label {
    font-size: 13px;
    padding: 10px 12px;
    min-height: 44px;
  }

  .bottom-bar {
    padding: 14px 16px;
    border-radius: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .status-area {
    font-size: 13px;
    padding: 4px 0;
  }

  .action-row {
    justify-content: stretch;
    gap: 8px;
  }
  .action-row .m3-btn {
    flex: 1;
  }

  .progress-wrap {
    min-width: 140px;
  }

  .m3-check {
    font-size: 14px;
    min-height: 38px;
  }
  .m3-check input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
  }
  .m3-check input[type="checkbox"]:checked::after {
    font-size: 14px;
  }

  .m3-badge {
    font-size: 10px;
    padding: 1px 10px;
  }
}

@media (max-width: 420px) {
  body {
    padding: 8px;
  }

  .app-surface {
    padding: 10px;
    border-radius: 16px;
  }

  .m3-header h1 {
    font-size: 17px;
  }
  .m3-header .material-icons-round {
    font-size: 24px;
  }
  .m3-header {
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 10px;
  }

  .m3-tab {
    padding: 6px 12px;
    font-size: 12px;
    min-height: 34px;
  }
  .m3-tab .material-icons-round {
    font-size: 16px;
  }

  .m3-card {
    padding: 12px;
    border-radius: 16px;
    margin-bottom: 12px;
  }
  .m3-card-title {
    font-size: 15px;
  }

  .m3-input {
    font-size: 16px;
    padding: 8px 10px;
    min-height: 38px;
  }

  .m3-btn {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 36px;
    min-width: 60px;
  }
  .m3-btn .material-icons-round {
    font-size: 16px;
  }

  .file-label {
    font-size: 12px;
    padding: 8px 10px;
    min-height: 38px;
  }

  .bottom-bar {
    padding: 12px;
    border-radius: 16px;
    gap: 10px;
  }

  .status-area {
    font-size: 12px;
  }
  .status-area .material-icons-round {
    font-size: 18px;
  }

  .progress-label {
    font-size: 12px;
  }

  .action-row {
    gap: 6px;
  }
}

@media (max-height: 600px) and (orientation: landscape) {
  .app-surface {
    padding: 12px;
  }

  .m3-header {
    margin-bottom: 12px;
    padding-bottom: 8px;
  }
  .m3-header h1 {
    font-size: 18px;
  }

  .m3-tabs {
    margin-bottom: 12px;
  }

  .m3-card {
    padding: 10px 14px;
    margin-bottom: 10px;
  }
  .m3-card-title {
    font-size: 15px;
    margin-bottom: 10px;
  }

  .m3-grid-2,
  .m3-grid-3 {
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
  }

  .bottom-bar {
    padding: 10px 14px;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .action-row {
    flex: 1;
    justify-content: flex-end;
  }
}

@media (hover: none) {
  .m3-btn:hover:not(:disabled) {
    transform: none;
  }
  .m3-tab:hover {
    background: transparent;
  }

  .file-label {
    cursor: default;
  }
}

@media (prefers-contrast: high) {
  .app-surface {
    background: rgba(10, 20, 10, 0.9);
    border: 2px solid #4caf50;
  }
  .m3-card {
    background: rgba(10, 20, 10, 0.8);
    border: 1px solid #4caf50;
  }
  .m3-input {
    border-color: #4caf50;
  }
  .file-label {
    border-color: #4caf50;
  }
}