/* Craftline Built — Client Agreement Form
   Brand: dark #3d4f5f / orange #f97316 / light #f6f7f9
   Mobile-first */

:root {
  --dark: #3d4f5f;
  --dark-soft: #4a5d6f;
  --orange: #f97316;
  --orange-hover: #ea6306;
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #d9dde2;
  --text: #1f2937;
  --muted: #6b7280;
  --error: #dc2626;
  --shadow: 0 2px 8px rgba(61, 79, 95, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.brand-header {
  background: var(--dark);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-header .logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 4px;
}
.brand-header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand-header p {
  margin: 2px 0 0;
  font-size: 13px;
  opacity: 0.8;
}

/* Main */
main {
  flex: 1;
  padding: 20px 16px 40px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}

.step {
  background: var(--card);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.step.hidden {
  display: none;
}
.step h2 {
  margin: 0 0 16px;
  font-size: 20px;
  color: var(--dark);
}
.step h3 {
  font-size: 15px;
  color: var(--dark);
  margin: 18px 0 8px;
}

/* Form */
.field {
  display: block;
  margin-bottom: 14px;
}
.field > span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}
.field input,
.field textarea {
  width: 100%;
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}
.field textarea {
  resize: vertical;
  min-height: 80px;
}

.price-input {
  position: relative;
}
.price-input .price-prefix {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-weight: 600;
  pointer-events: none;
}
.price-input input {
  padding-left: 28px;
}

.field input:invalid:not(:placeholder-shown),
.field input.invalid,
.field textarea.invalid {
  border-color: var(--error);
}

/* Buttons */
.primary-btn,
.secondary-btn {
  display: inline-block;
  width: 100%;
  font: inherit;
  font-weight: 600;
  padding: 14px 18px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  margin-top: 8px;
}
.primary-btn {
  background: var(--orange);
  color: #fff;
  font-size: 16px;
}
.primary-btn:hover {
  background: var(--orange-hover);
}
.primary-btn:active {
  transform: scale(0.99);
}
.primary-btn:disabled {
  background: var(--muted);
  cursor: not-allowed;
}
.secondary-btn {
  background: transparent;
  color: var(--dark);
  border: 1px solid var(--border);
}
.secondary-btn:hover {
  background: var(--bg);
}
.link-btn {
  background: none;
  border: none;
  color: var(--orange);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  padding: 6px 0;
  margin-top: 6px;
}
.link-btn:hover {
  text-decoration: underline;
}

.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 16px;
}
@media (min-width: 520px) {
  .actions {
    grid-template-columns: 1fr 2fr;
  }
}

/* Agreement preview */
.agreement-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  font-size: 14px;
  max-height: 360px;
  overflow-y: auto;
  white-space: pre-wrap;
  line-height: 1.55;
}
.agreement-preview h3 {
  margin: 14px 0 6px;
  color: var(--dark);
}
.agreement-preview h3:first-child {
  margin-top: 0;
}
.agreement-preview strong {
  color: var(--dark);
}

/* Signature */
.signature-block {
  margin-top: 8px;
}
.designer-sig {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.sig-mark {
  font-family: "Brush Script MT", "Lucida Handwriting", cursive;
  font-size: 28px;
  color: var(--dark);
  line-height: 1;
}
.sig-line {
  border-bottom: 1px solid var(--dark);
  margin: 6px 0 6px;
  width: 60%;
}
.sig-label {
  font-size: 12px;
  color: var(--muted);
}
.sig-instruction {
  font-size: 13px;
  color: var(--muted);
  margin: 4px 0 8px;
}
.sig-pad-wrapper {
  border: 1.5px dashed var(--dark-soft);
  border-radius: 10px;
  background: #fff;
  position: relative;
  overflow: hidden;
  touch-action: none;
}
#signature-pad {
  display: block;
  width: 100%;
  height: 180px;
  touch-action: none;
}

/* Loading */
#loading-step {
  text-align: center;
  padding: 40px 20px;
}
.loader {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--orange);
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
#loading-status {
  color: var(--muted);
  margin: 8px 0 0;
}

/* Success */
#success-step {
  text-align: center;
  padding: 40px 20px;
}
.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 36px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

/* Error */
.error {
  color: var(--error);
  font-size: 14px;
  margin-top: 12px;
  padding: 10px 12px;
  background: #fef2f2;
  border-radius: 8px;
  border: 1px solid #fecaca;
}
.error.hidden {
  display: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  color: var(--muted);
  font-size: 12px;
}