:root {
    --primary: #1a56db;
    --primary-hover: #1244b8;
    --danger: #dc2626;
    --success: #16a34a;
    --bg: #f3f4f6;
    --card: #ffffff;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #d1d5db;
    --border-focus: #1a56db;
    --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.header p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--text);
}

label .required {
    color: var(--danger);
    margin-left: 2px;
}

input[type="text"],
input[type="email"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text);
    background: var(--card);
    transition: border-color 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.file-drop {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    position: relative;
}

.file-drop:hover,
.file-drop.dragover {
    border-color: var(--primary);
    background: rgba(26, 86, 219, 0.03);
}

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

.file-drop .label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.file-drop .label strong {
    color: var(--primary);
}

.file-drop .preview {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--success);
    font-weight: 500;
}

.file-drop .preview img {
    max-height: 120px;
    margin-top: 0.5rem;
    border-radius: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.errors {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.errors ul {
    list-style: none;
    font-size: 0.875rem;
    color: var(--danger);
}

.errors li + li {
    margin-top: 0.25rem;
}

.success-card {
    text-align: center;
    padding: 3rem 2rem;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: #dcfce7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.success-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.success-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.success-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.success-card a:hover {
    text-decoration: underline;
}

.btn-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
}

.btn-link:hover {
    color: var(--text);
}

.spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 640px) {
    .row { grid-template-columns: 1fr; }
    .container { padding: 1rem 0.75rem; }
    .card { padding: 1.5rem; }
}