:root {
  --color-primary: #0B2E4F;
  --color-primary-soft: #123E67;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-muted: #eef3f7;
  --color-border: #d9e2ea;
  --color-text: #1d2b36;
  --color-subtle: #607080;
  --color-error: #b42318;
  --color-success: #137333;
  --shadow-card: 0 24px 70px rgba(11, 46, 79, 0.14);
  --shadow-soft: 0 10px 24px rgba(11, 46, 79, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(11, 46, 79, 0.08), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, #f7fafc 100%);
  color: var(--color-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.form-card {
  width: 100%;
  overflow: hidden;
  border: 1px solid rgba(217, 226, 234, 0.82);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-card);
  animation: cardIn 420ms ease both;
}

.form-card__header {
  padding: 44px 48px 30px;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(11, 46, 79, 0.06), rgba(238, 243, 247, 0.28));
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--color-primary);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  color: var(--color-primary);
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(2rem, 4vw, 3.15rem);
}

h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
}

.intro {
  max-width: 660px;
  margin: 16px 0 0;
  color: var(--color-subtle);
  font-size: 1.02rem;
}

.valuation-form {
  padding: 36px 48px 44px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.field,
.upload-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--wide {
  grid-column: span 2;
}

label {
  color: var(--color-primary);
  font-size: 0.95rem;
  font-weight: 750;
}

label span {
  color: var(--color-error);
}

input[type="text"],
input[type="number"],
input[type="tel"],
input[type="email"] {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-text);
  padding: 0 16px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(11, 46, 79, 0.11);
}

.field.is-invalid input,
.upload-field.is-invalid .drop-zone {
  border-color: var(--color-error);
}

.field-error {
  min-height: 18px;
  color: var(--color-error);
  font-size: 0.84rem;
  font-weight: 650;
}

.photos-section {
  margin-top: 38px;
  padding-top: 34px;
  border-top: 1px solid var(--color-border);
}

.section-heading {
  margin-bottom: 22px;
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.upload-field input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.drop-zone {
  display: grid;
  width: 100%;
  min-height: 186px;
  place-items: center;
  gap: 7px;
  border: 1.5px dashed #b9c7d3;
  border-radius: var(--radius-md);
  background: #fbfdff;
  color: var(--color-primary);
  cursor: pointer;
  padding: 20px;
  text-align: center;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.drop-zone:hover,
.upload-field.is-dragover .drop-zone {
  border-color: var(--color-primary);
  background: #f4f8fb;
  box-shadow: var(--shadow-soft);
  transform: translateY(-1px);
}

.drop-zone__icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1;
}

.drop-zone__title {
  font-weight: 800;
}

.drop-zone__hint {
  max-width: 190px;
  color: var(--color-subtle);
  font-size: 0.84rem;
}

.file-preview {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 74px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 8px;
}

.file-preview img {
  width: 58px;
  height: 58px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--color-muted);
}

.file-preview strong,
.file-preview span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-preview strong {
  color: var(--color-primary);
  font-size: 0.9rem;
}

.file-preview span {
  color: var(--color-subtle);
  font-size: 0.82rem;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
}

.form-status {
  min-height: 24px;
  color: var(--color-subtle);
  font-weight: 700;
}

.form-status.is-success {
  color: var(--color-success);
}

.form-status.is-error {
  color: var(--color-error);
}

.submit-button {
  position: relative;
  display: inline-flex;
  min-width: 210px;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  font-weight: 850;
  padding: 0 28px;
  box-shadow: 0 14px 30px rgba(11, 46, 79, 0.24);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), opacity var(--transition);
}

.submit-button:hover {
  background: var(--color-primary-soft);
  box-shadow: 0 18px 34px rgba(11, 46, 79, 0.27);
  transform: translateY(-1px);
}

.submit-button:disabled {
  cursor: not-allowed;
  opacity: 0.78;
  transform: none;
}

.spinner {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255, 255, 255, 0.36);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: spin 800ms linear infinite;
}

.submit-button.is-loading .button-text {
  opacity: 0;
}

.submit-button.is-loading .spinner {
  opacity: 1;
}

.honeypot {
  position: absolute;
  left: -10000px;
  opacity: 0;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 920px) {
  .upload-grid {
    grid-template-columns: 1fr;
  }

  .drop-zone {
    min-height: 154px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 22px, 620px);
    padding: 18px 0;
  }

  .form-card {
    border-radius: 18px;
  }

  .form-card__header,
  .valuation-form {
    padding-right: 20px;
    padding-left: 20px;
  }

  .form-card__header {
    padding-top: 30px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .field--wide {
    grid-column: auto;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .submit-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}