/* ================================
   Upload Page – ExamArchive
   Mobile-first, backend-ready
   ================================ */

/* ---------- Page Wrapper ---------- */
.upload-page {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* ---------- Intro ---------- */
.upload-intro h1 {
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.upload-intro p {
  font-size: 0.9rem;
}

/* ---------- Upload Card ---------- */
.upload-card {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ---------- Steps ---------- */
.upload-step h2 {
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

/* ---------- Fields ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.field input {
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
}

.field input:focus {
  outline: none;
  border-color: var(--red);
}

/* ---------- Field Hint ---------- */
.field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---------- File Upload ---------- */
.file-drop {
  display: block;
  cursor: pointer;
}

.file-ui {
  padding: 1.2rem;
  border-radius: 12px;
  border: 2px dashed var(--border);
  background: var(--bg-soft);
  text-align: center;
  transition: border 0.2s, background 0.2s;
}

.file-ui strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.file-ui:hover {
  border-color: var(--red);
  background: rgba(211,47,47,0.04);
}

/* ---------- Submit ---------- */
.upload-submit {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.upload-note {
  font-size: 0.75rem;
  text-align: center;
}

/* ---------- Info Card ---------- */
.upload-info {
  margin-top: 1.5rem;
}

.upload-info h2 {
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.upload-info ul {
  padding-left: 1rem;
  margin: 0;
}

.upload-info li {
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

/* ---------- Desktop polish ---------- */
@media (min-width: 768px) {
  .upload-page {
    margin-top: 3rem;
  }

  .upload-intro h1 {
    font-size: 1.6rem;
  }
}

/* ---------- Mobile ---------- */
@media (max-width: 767px) {
  .upload-page {
    margin: 1rem auto;
    padding: 0 0.75rem;
  }

  .upload-intro h1 {
    font-size: 1.3rem;
  }

  .upload-card {
    gap: 1.2rem;
  }

  .field input {
    padding: 0.7rem 0.8rem;
    font-size: 1rem;
    min-height: 44px;
  }

  .file-ui {
    padding: 1.5rem 1rem;
  }

  .btn.btn-red {
    min-height: 48px;
    font-size: 1rem;
  }
}

/* ---------- Tablet ---------- */
@media (min-width: 768px) and (max-width: 1023px) {
  .upload-page {
    margin: 2rem auto;
  }

  .upload-intro h1 {
    font-size: 1.5rem;
  }
}