/* ========================================
   Mastering Challenge — Onboarding Styles
   Same design system as mentoring (dark theme)
   Completely independent file
   ======================================== */

:root {
    --surface-base: #161618;
    --surface-raised: #1c1c1f;
    --surface-card: #222225;
    --surface-hover: #2a2a2d;
    --border-subtle: rgba(255,255,255,0.07);
    --border-medium: rgba(255,255,255,0.12);
    --text-primary: #ebebeb;
    --text-secondary: #b0b0b0;
    --text-faint: #8a8a8a;
    --brand-red: #E53030;
    --brand-red-hover: #CC2828;
    --color-success: #34d399;
    --color-error: #ef4444;
    --color-discord: #5865F2;
    --color-discord-hover: #4752c4;
}

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

body {
    background: var(--surface-base);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    min-height: 100vh;
    line-height: 1.5;
}

/* --- Layout --- */
.onboard-container {
    max-width: 560px;
    margin: 0 auto;
    padding: 24px 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.onboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.onboard-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.onboard-logo-img {
    height: 24px;
    width: auto;
}

.onboard-content {
    flex: 1;
}

/* --- Step Indicator --- */
.step-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
}

.step-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.step-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    background: var(--surface-card);
    color: var(--text-faint);
    border: 1px solid var(--border-subtle);
}

.step-dot.active .step-num {
    background: var(--brand-red);
    color: white;
    border-color: var(--brand-red);
}

.step-dot.done .step-num {
    background: rgba(52,211,153,0.12);
    color: var(--color-success);
    border-color: rgba(52,211,153,0.3);
}

.step-label {
    font-size: 9px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: none;
}

.step-line {
    width: 16px;
    height: 1px;
    background: var(--border-medium);
    margin-bottom: 16px;
}

@media (min-width: 480px) {
    .step-label { display: block; }
    .step-line { width: 24px; }
}

/* --- Step Card --- */
.step-card {
    background: var(--surface-raised);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 32px 24px;
}

.step-card--center {
    text-align: center;
}

.step-card--success {
    border-color: rgba(52,211,153,0.15);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.step-hint {
    font-size: 12px;
    color: var(--text-faint);
    margin-top: 16px;
}

.step-hint a {
    color: var(--text-secondary);
    text-decoration: underline;
}

/* --- Form --- */
.mc-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

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

.form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.required {
    color: var(--brand-red);
}

.form-input {
    background: var(--surface-card);
    border: 1px solid var(--border-medium);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    border-color: var(--brand-red);
    box-shadow: 0 0 0 3px rgba(229,48,48,0.15);
}

.form-input::placeholder {
    color: var(--text-faint);
}

/* --- Tier Selector --- */
.tier-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.tier-option {
    cursor: pointer;
}

.tier-option input {
    display: none;
}

.tier-card {
    background: var(--surface-card);
    border: 2px solid var(--border-medium);
    border-radius: 10px;
    padding: 18px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
}

.tier-option.selected .tier-card,
.tier-option:hover .tier-card {
    border-color: var(--brand-red);
    background: rgba(229,48,48,0.04);
}

.tier-badge {
    position: absolute;
    top: -10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--brand-red);
    color: white;
    padding: 2px 10px;
    border-radius: 10px;
}

.tier-name {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.3;
}

.tier-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.tier-benefit {
    font-size: 11px;
    color: var(--text-faint);
    text-align: center;
    line-height: 1.3;
}

/* --- Checkbox --- */
.checkbox-group {
    margin-top: 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 4px 0;
}

.checkbox-label input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    background: var(--surface-card);
    border: 1.5px solid var(--border-medium);
    border-radius: 5px;
    cursor: pointer;
    position: relative;
    transition: background 0.15s, border-color 0.15s;
}

.checkbox-label input[type="checkbox"]:hover {
    border-color: rgba(255,255,255,0.24);
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--brand-red);
    border-color: var(--brand-red);
}

.checkbox-label input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 45%;
    width: 5.5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -55%) rotate(45deg);
}

.checkbox-label input[type="checkbox"]:focus-visible {
    outline: 2px solid var(--brand-red);
    outline-offset: 2px;
}

/* --- Billing Fields --- */
.billing-fields {
    padding: 24px 20px 28px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: -4px;
}

.billing-fields .form-group {
    gap: 7px;
}

/* --- Legal checkbox --- */
.legal-checkbox {
    margin-top: -8px;
}

.legal-checkbox a {
    color: var(--text-secondary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-checkbox a:hover {
    color: var(--text-primary);
}

/* --- Errors --- */
.form-errors {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.2);
    border-radius: 8px;
    padding: 12px 16px;
}

.form-errors p {
    font-size: 13px;
    color: var(--color-error);
    margin-bottom: 4px;
}

.form-errors p:last-child {
    margin-bottom: 0;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background 0.2s, opacity 0.2s;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--brand-red);
    color: white;
    box-shadow: 0 4px 20px rgba(229,48,48,0.3);
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-primary:hover:not(:disabled) {
    background: var(--brand-red-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(229,48,48,0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.trust-signal {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
}

.trust-text {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-faint);
}

.trust-text svg {
    flex-shrink: 0;
}

.trust-logos {
    display: flex;
    align-items: center;
    gap: 12px;
}

.trust-logos img {
    height: 24px;
    width: auto;
}

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

.btn-discord:hover:not(:disabled) {
    background: var(--color-discord-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
    padding: 6px 12px;
    font-size: 12px;
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* --- NDA --- */
.nda-text {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
    max-height: 300px;
    overflow-y: auto;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.nda-text h3 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.nda-text h4 {
    font-size: 13px;
    color: var(--text-primary);
    margin-top: 16px;
    margin-bottom: 8px;
}

.nda-text ul {
    padding-left: 20px;
    margin-bottom: 8px;
}

.nda-text li {
    margin-bottom: 6px;
}

.nda-text p {
    margin-bottom: 8px;
}

/* --- Signature --- */
.signature-section {
    margin-bottom: 20px;
}

.signature-wrapper {
    background: var(--surface-card);
    border: 2px dashed var(--border-medium);
    border-radius: 8px;
    margin: 8px 0;
    overflow: hidden;
}

.signature-wrapper canvas {
    display: block;
    width: 100%;
}

/* --- Discord --- */
.discord-icon {
    color: var(--color-discord);
    margin-bottom: 16px;
}

/* --- Success / Complete --- */
.success-icon {
    margin-bottom: 20px;
}

.success-steps {
    text-align: left;
    margin: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.success-step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.success-step-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--color-success);
    background: rgba(52,211,153,0.08);
    border-radius: 4px;
    padding: 4px 8px;
    flex-shrink: 0;
}

.success-step strong {
    font-size: 14px;
    display: block;
    margin-bottom: 2px;
}

.success-step p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* --- Loading --- */
.onboard-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    gap: 16px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-medium);
    border-top-color: var(--brand-red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    font-size: 14px;
    color: var(--text-secondary);
}

/* --- Error State --- */
.onboard-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    text-align: center;
    gap: 12px;
}

.error-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(239,68,68,0.1);
    color: var(--color-error);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
}

.error-title {
    font-size: 18px;
    font-weight: 600;
}

.error-message {
    font-size: 14px;
    color: var(--text-secondary);
}

/* --- Responsive --- */
@media (max-width: 480px) {
    .onboard-container {
        padding: 16px 12px;
    }

    .step-card {
        padding: 24px 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .tier-selector {
        grid-template-columns: 1fr;
    }
}