:root {
    --color-primary: #2759ff;
    --color-primary-hover: #1c47d4;
    --color-secondary: #edf1fb;
    --color-text: #1a1f36;
    --color-muted: #6b7280;
    --color-border: #d7dce5;
    --color-success: #27ae60;
    --color-error: #e23d3d;
    --color-warning: #f39c12;
    --color-bg: #f5f7fb;
    --radius: 8px;
    --shadow: 0 4px 16px rgba(30, 45, 90, .08);
    --transition: .2s ease;
}

* { box-sizing: border-box; }

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

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header/Footer */
.app-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
}

.logo {
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    font-size: 18px;
}

.app-main {
    flex: 1;
    padding: 40px 0;
}

.app-footer {
    background: #fff;
    border-top: 1px solid var(--color-border);
    padding: 20px 0;
    color: var(--color-muted);
    text-align: center;
}

/* Wizard */
.wizard-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px;
    max-width: 640px;
    margin: 0 auto;
}

.wizard-progress {
    position: relative;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 3px;
    margin-bottom: 28px;
    overflow: visible;
}

.wizard-progress__bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width .4s ease;
}

.wizard-progress__label {
    position: absolute;
    top: 14px;
    right: 0;
    font-size: 13px;
    color: var(--color-muted);
}

.wizard-title {
    font-size: 26px;
    margin: 0 0 8px;
    font-weight: 700;
}

.wizard-subtitle {
    color: var(--color-muted);
    margin: 0 0 28px;
    font-size: 15px;
}

.wizard-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.wizard-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

/* Form */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-weight: 600;
    font-size: 14px;
}

.form-hint {
    color: var(--color-muted);
    font-size: 13px;
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 11px 14px;
    font-size: 15px;
    font-family: inherit;
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(39, 89, 255, .15);
}

.form-control-sm {
    padding: 8px 10px;
    font-size: 14px;
    max-width: 160px;
}

.form-inline {
    display: flex;
    gap: 10px;
    align-items: stretch;
    flex-wrap: wrap;
}

.form-inline .form-control {
    flex: 1;
    min-width: 200px;
}

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

.form-error {
    color: var(--color-error);
    font-size: 13px;
    margin-top: 2px;
}

.form-message {
    font-size: 13px;
    margin-top: 4px;
    min-height: 16px;
}

.form-message.is-success { color: var(--color-success); }
.form-message.is-error   { color: var(--color-error); }
.form-message.is-info    { color: var(--color-muted); }

/* Code input block */
.code-input-block {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 8px;
    padding: 12px;
    background: var(--color-secondary);
    border-radius: var(--radius);
    flex-wrap: wrap;
}

.resend-timer {
    font-size: 13px;
    color: var(--color-muted);
}

/* Checkbox */
.checkbox-group { padding: 4px 0; }

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.checkbox__mark {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-border);
    border-radius: 5px;
    background: #fff;
    margin-top: 1px;
    transition: var(--transition);
    position: relative;
}

.checkbox input:checked + .checkbox__mark {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox input:checked + .checkbox__mark::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 12px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox__text {
    font-size: 14px;
    line-height: 1.5;
}

.checkbox__text a {
    color: var(--color-primary);
    text-decoration: none;
}

.checkbox__text a:hover { text-decoration: underline; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 22px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform .1s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn:active { transform: scale(.98); }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-primary);
}
.btn-secondary:hover:not(:disabled) { background: #dbe4fa; }

.btn-link {
    background: transparent;
    color: var(--color-muted);
    padding: 11px 4px;
}
.btn-link:hover { color: var(--color-primary); }

.btn-sm {
    padding: 8px 14px;
    font-size: 14px;
}

.btn:disabled {
    opacity: .6;
    cursor: not-allowed;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #e8f5ec;
    color: #1e7b3d;
    border: 1px solid #c8e6d1;
}

.alert-error {
    background: #fdecec;
    color: #a12020;
    border: 1px solid #f5c4c4;
}

/* Verification block state */
[data-verify-block].is-verified .form-control {
    background: #f4fbf6;
    border-color: var(--color-success);
}

/* Responsive */
@media (max-width: 640px) {
    .wizard-card { padding: 24px 20px; }
    .wizard-title { font-size: 22px; }
    .form-inline { flex-direction: column; align-items: stretch; }
    .form-inline .form-control { min-width: 0; }
    .form-inline .btn { width: 100%; }
    .code-input-block { flex-direction: column; align-items: stretch; }
    .code-input-block .form-control-sm { max-width: 100%; }
    .wizard-actions { flex-direction: column-reverse; gap: 10px; align-items: stretch; }
    .wizard-actions .btn { width: 100%; text-align: center; }
}