:root {
  --bg-top: #e6f1ff;
  --bg-bottom: #c7daf7;
  --card-bg: rgba(255, 255, 255, 0.96);
  --primary: #005bbb;
  --primary-dark: #003d84;
  --accent: #ff9900;
  --accent-deep: #f07a00;
  --text-main: #14243d;
  --text-soft: #586579;
  --border: #bfd0e5;
  --error: #b42318;
  --success: #0d7a46;
  --shadow: 0 24px 60px rgba(0, 53, 112, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(255, 153, 0, 0.2), transparent 30%),
    radial-gradient(circle at bottom right, rgba(0, 91, 187, 0.18), transparent 35%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.upload-card {
  width: min(100%, 520px);
  padding: 32px 28px;
  border-radius: 24px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(8px);
}

.logo {
  display: block;
  width: 124px;
  height: auto;
  margin: 0 auto 20px;
  border-radius: 20px;
  box-shadow: 0 16px 30px rgba(0, 42, 91, 0.22);
}

.card-heading {
  text-align: center;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 4vw, 2.2rem);
  line-height: 1.15;
}

.intro {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
}

form {
  display: grid;
  gap: 20px;
}

.field-group {
  display: grid;
  gap: 8px;
}

label {
  font-weight: 700;
}

.required-mark {
  color: var(--error);
}

input[type="text"],
input[type="email"] {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  font: inherit;
  color: var(--text-main);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="file"]:focus-visible + .file-button,
.file-button:focus-visible,
button:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 91, 187, 0.15);
}

.file-picker-row {
  position: relative;
}

input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px dashed rgba(0, 91, 187, 0.35);
  background: rgba(0, 91, 187, 0.06);
  color: var(--primary-dark);
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.file-button:hover {
  transform: translateY(-1px);
  background: rgba(0, 91, 187, 0.1);
  border-color: rgba(0, 91, 187, 0.55);
}

.file-help,
.selected-file {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-soft);
}

.field-error {
  min-height: 1.1em;
  margin: 0;
  font-size: 0.92rem;
  color: var(--error);
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

button {
  min-height: 50px;
  border: 0;
  border-radius: 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.7;
  cursor: wait;
}

#upload-button {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #1570ef);
  box-shadow: 0 12px 24px rgba(0, 91, 187, 0.24);
}

.secondary {
  color: var(--primary-dark);
  background: linear-gradient(135deg, #fff7eb, #ffe1b3);
  border: 1px solid rgba(255, 153, 0, 0.35);
}

.status-message {
  min-height: 1.2em;
  margin: 0;
  font-weight: 700;
  text-align: center;
}

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

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

@media (max-width: 560px) {
  .upload-card {
    padding: 24px 18px;
    border-radius: 20px;
  }

  .actions {
    grid-template-columns: 1fr;
  }
}