/* Mobile-first, clean card UI with large tap targets */
:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #65676b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-press: #1e40af;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --success-bg: #ecfdf5;
  --success-border: #10b981;
  --border: #e4e6eb;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app {
  max-width: 520px;
  margin: 0 auto;
  padding: 16px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 20px;
  margin-top: 16px;
}

.app-header {
  text-align: center;
  margin-bottom: 16px;
}

.app-title {
  font-size: 1.25rem;
  margin: 0;
  color: var(--primary);
  letter-spacing: 0.2px;
}

/* Guidance / status messages */
.message {
  text-align: center;
  color: var(--muted);
  font-size: 1.05rem;
  padding: 28px 12px;
  background: #f0f2f5;
  border-radius: 10px;
}

.message.error {
  color: var(--danger);
  background: var(--danger-bg);
}

.store-heading {
  font-size: 1.4rem;
  margin: 0 0 20px;
  text-align: center;
  color: var(--text);
}

/* Form */
.order-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.field label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.field input[type="text"],
.field input[type="tel"],
.field input[type="file"] {
  width: 100%;
  padding: 14px 12px;
  font-size: 16px; /* prevents iOS zoom on focus */
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.field input[type="file"] {
  padding: 10px;
  cursor: pointer;
}

.preview {
  margin-top: 8px;
  max-width: 100%;
  max-height: 240px;
  border-radius: 10px;
  border: 1px solid var(--border);
  object-fit: contain;
  display: block;
}

.form-error {
  margin: 0;
  padding: 12px 14px;
  background: var(--danger-bg);
  color: var(--danger);
  border-radius: 10px;
  font-size: 0.95rem;
  text-align: center;
}

/* Large tap target button */
.submit-btn {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease;
  min-height: 52px;
}

.submit-btn:hover {
  background: var(--primary-dark);
}

.submit-btn:active {
  background: var(--primary-press);
  transform: translateY(1px);
}

.submit-btn:disabled {
  background: #9aa4b2;
  cursor: not-allowed;
}

/* Success view */
.success-view {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.success-title {
  font-size: 1.6rem;
  margin: 0;
}

.success-label {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 600;
}

.order-code-box {
  width: 100%;
  padding: 22px 16px;
  background: var(--success-bg);
  border: 2px solid var(--success-border);
  border-radius: 14px;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #065f46;
  word-break: break-all;
  user-select: all;
}

.success-hint {
  color: var(--muted);
  margin: 0 0 6px;
}

/* Larger screens: a touch more breathing room */
@media (min-width: 560px) {
  .app {
    padding: 32px 16px;
  }
  .card {
    padding: 32px 28px;
  }
  .app-title {
    font-size: 1.5rem;
  }
}