* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--tg-theme-bg-color, #ffffff);
  color: var(--tg-theme-text-color, #000000);
  min-height: 100vh;
  padding: 0;
  margin: 0;
  line-height: 1.4;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  max-width: 100%;
  margin: 0;
  padding-bottom: env(safe-area-inset-bottom);
}

/* Header - Telegram Style */
header {
  background: var(--tg-theme-bg-color, #ffffff);
  padding: 20px 16px 16px 16px;
  padding-top: max(20px, env(safe-area-inset-top));
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 0.33px solid var(--tg-theme-hint-color, rgba(0, 0, 0, 0.08));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--tg-theme-text-color, #000000);
  margin: 0 0 4px 0;
  letter-spacing: -0.4px;
  line-height: 1.2;
}

header p {
  font-size: 15px;
  color: var(--tg-theme-hint-color, #8E8E93);
  margin: 0;
  font-weight: 400;
}

.branding {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3c6ff0, #48c6ef);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  font-size: 12px;
  box-shadow: 0 8px 20px rgba(72, 198, 239, 0.25);
}

/* Queue Status Card - Telegram Style */
.queue-status {
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  padding: 14px 16px;
  margin: 12px 16px 16px 16px;
  border-radius: 12px;
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  color: var(--tg-theme-text-color, #000000);
  letter-spacing: -0.2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.queue-status.full {
  background: rgba(255, 59, 48, 0.12);
  color: #FF3B30;
  border-color: rgba(255, 59, 48, 0.25);
}

/* Models Grid - Telegram Style */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
  gap: 10px;
  padding: 8px 16px 20px 16px;
}

@media (min-width: 768px) {
  .models-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
  }
}

/* Model Card - Telegram Style */
.model-card {
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.15s ease, opacity 0.15s ease;
  cursor: pointer;
  box-shadow: 0 0.5px 0 rgba(0, 0, 0, 0.04);
}

.model-card:active {
  transform: scale(0.97);
  opacity: 0.85;
}

.model-preview {
  width: 100%;
  height: 165px;
  background: var(--tg-theme-bg-color, #ffffff);
  position: relative;
  overflow: hidden;
  border-bottom: 0.33px solid var(--tg-theme-hint-color, rgba(0, 0, 0, 0.08));
}

.model-preview canvas {
  width: 100% !important;
  height: 100% !important;
}

.model-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.model-info {
  padding: 14px;
}

.model-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--tg-theme-text-color, #000000);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: -0.3px;
}

.print-time {
  font-size: 14px;
  color: var(--tg-theme-hint-color, #8E8E93);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.print-time::before {
  content: "⏱";
  font-size: 15px;
}

/* Buttons - Telegram Style */
.btn-primary {
  width: 100%;
  padding: 11px 16px;
  background: var(--tg-theme-button-color, #007AFF);
  color: var(--tg-theme-button-text-color, #ffffff);
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  letter-spacing: -0.3px;
}

.btn-primary:active {
  opacity: 0.65;
}

.modal .btn-primary {
  box-shadow: 0 10px 25px rgba(0, 122, 255, 0.25);
  margin-bottom: 10px;
}

.modal .btn-secondary {
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  color: var(--tg-theme-button-color, #007AFF);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: none;
  font-weight: 600;
}

.btn-secondary {
  width: 100%;
  padding: 11px 16px;
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  color: var(--tg-theme-button-color, #007AFF);
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.3px;
}

.btn-secondary:active {
  opacity: 0.65;
}

/* Modal - Telegram Style */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.2s ease;
}

.modal.active {
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

@media (min-width: 768px) {
  .modal.active {
    align-items: center;
  }
}

.modal-content {
  background: var(--tg-theme-bg-color, #ffffff);
  padding: 20px 16px;
  padding-bottom: max(20px, env(safe-area-inset-bottom));
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  animation: slideUp 0.25s cubic-bezier(0.36, 0.66, 0.04, 1);
}

@media (min-width: 768px) {
  .modal-content {
    border-radius: 20px;
    max-width: 420px;
    padding: 24px 20px;
  }
}

.preview-modal .modal-content {
  max-width: 760px;
}

.preview-modal-content {
  width: calc(100% - 32px);
}

#preview-3d-container {
  height: 340px;
  background: linear-gradient(135deg, #eef2ff, #f8fbff);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

@media (max-width: 520px) {
  #preview-3d-container {
    height: 280px;
  }
}

#preview-3d-container canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

#preview-3d-container .preview-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #0f172a;
}

#preview-model-info {
  color: var(--tg-theme-hint-color, #8E8E93);
  margin-bottom: 16px;
  font-size: 15px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.close, .close-queue {
  color: var(--tg-theme-hint-color, #8E8E93);
  float: right;
  font-size: 28px;
  font-weight: 300;
  cursor: pointer;
  line-height: 1;
  margin: -4px 0 0 16px;
  transition: opacity 0.15s ease;
}

.close:active,
.close-queue:active {
  opacity: 0.5;
}

.modal-content h2 {
  color: var(--tg-theme-text-color, #000000);
  margin-bottom: 16px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.4px;
  line-height: 1.3;
}

.modal-content p {
  font-size: 16px;
  line-height: 1.4;
  color: var(--tg-theme-text-color, #000000);
  margin-bottom: 20px;
}

#selected-model-preview {
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}

#selected-model-preview h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--tg-theme-text-color, #000000);
  letter-spacing: -0.3px;
}

#selected-model-preview p {
  font-size: 15px;
  color: var(--tg-theme-hint-color, #8E8E93);
  margin-bottom: 0;
}

/* Form Styles - Telegram Style */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 500;
  font-size: 15px;
  color: var(--tg-theme-text-color, #000000);
  letter-spacing: -0.2px;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: none;
  border-radius: 12px;
  font-size: 17px;
  background: var(--tg-theme-secondary-bg-color, #F2F2F7);
  color: var(--tg-theme-text-color, #000000);
  transition: opacity 0.15s ease;
  -webkit-appearance: none;
  letter-spacing: -0.3px;
}

.form-group input:focus {
  outline: 2px solid var(--tg-theme-button-color, #007AFF);
  outline-offset: -2px;
}

.form-group input::placeholder {
  color: var(--tg-theme-hint-color, #8E8E93);
}

/* Payment Notice - Telegram Style */
.payment-notice {
  background: rgba(255, 204, 0, 0.12);
  border: 1px solid rgba(255, 204, 0, 0.25);
  color: var(--tg-theme-text-color, #000000);
  padding: 14px 16px;
  border-radius: 12px;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.2px;
  line-height: 1.4;
}

/* Loading State */
.loading {
  text-align: center;
  padding: 60px 16px;
  color: var(--tg-theme-hint-color, #8E8E93);
  font-size: 16px;
  letter-spacing: -0.2px;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  body {
    background: var(--tg-theme-bg-color, #000000);
    color: var(--tg-theme-text-color, #ffffff);
  }

  .model-preview {
    background: var(--tg-theme-bg-color, #1C1C1E);
  }
}

/* Safe Area Support for iOS */
@supports (padding: max(0px)) {
  body {
    padding-left: max(0px, env(safe-area-inset-left));
    padding-right: max(0px, env(safe-area-inset-right));
  }
}