/* ============================================
   ONBOARDING — Premium first-run experience
   Aristos Authenticator Design System v2.0
   ============================================ */

/* ---- Screen shell ---- */
.onboarding-screen {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    padding-top: calc(var(--spacing-lg) + var(--safe-top));
    padding-bottom: calc(var(--spacing-lg) + var(--safe-bottom));
    overflow-y: auto;
}

/* Ambient radial glow behind content */
.onboarding-screen::before {
    content: '';
    position: fixed;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 140%;
    height: 100%;
    background: radial-gradient(ellipse 50% 40% at 50% 30%, rgba(var(--brand-accent-rgb), 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Floating particle accents (pure CSS) */
.onboarding-screen::after {
    content: '';
    position: fixed;
    width: 300px;
    height: 300px;
    bottom: -80px;
    right: -80px;
    background: radial-gradient(circle, rgba(var(--brand-accent-rgb), 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: floatOrb 8s ease-in-out infinite alternate;
    z-index: 0;
}

/* ---- Content container ---- */
.onboarding-content {
    max-width: 380px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.onboarding-content h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.onboarding-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.onboarding-footer {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-lg);
}

/* ---- Form ---- */
.onboarding-form {
    margin: var(--spacing-xl) 0;
}

.onboarding-form .form-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.onboarding-form label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    letter-spacing: 0.01em;
}

.onboarding-form input {
    width: 100%;
    padding: 14px var(--spacing-md);
    background: var(--color-surface-0);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: var(--text-base);
    font-family: inherit;
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.onboarding-form input:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(var(--brand-accent-rgb), 0.12);
}

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

/* ---- Step icons — soft pulsing orbs ---- */
.email-icon,
.biometric-icon,
.notification-icon,
.success-icon {
    width: 96px;
    height: 96px;
    margin: var(--spacing-xl) auto;
    background: radial-gradient(circle, rgba(var(--brand-accent-rgb), 0.12) 0%, rgba(var(--brand-accent-rgb), 0.03) 70%);
    border: 1px solid rgba(var(--brand-accent-rgb), 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gold);
    animation: breatheIcon 3s ease-in-out infinite;
    position: relative;
}

/* Outer ring glow */
.email-icon::before,
.biometric-icon::before,
.notification-icon::before,
.success-icon::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid rgba(var(--brand-accent-rgb), 0.06);
    animation: breatheRing 3s ease-in-out infinite;
}

.email-icon svg,
.biometric-icon svg,
.notification-icon svg,
.success-icon svg {
    filter: drop-shadow(0 0 16px rgba(var(--brand-accent-rgb), 0.25));
}

/* Success icon gets green treatment */
.success-icon {
    background: radial-gradient(circle, rgba(var(--color-success-rgb), 0.12) 0%, rgba(var(--color-success-rgb), 0.03) 70%);
    border-color: rgba(var(--color-success-rgb), 0.1);
    color: var(--color-success);
}

.success-icon::before {
    border-color: rgba(var(--color-success-rgb), 0.06);
}

.success-icon svg {
    filter: drop-shadow(0 0 16px rgba(var(--color-success-rgb), 0.25));
}

/* ---- User info & email display ---- */
.user-info {
    font-size: var(--text-base);
    color: var(--color-text);
    margin: var(--spacing-md) 0;
    font-weight: 500;
}

.email-sent-to {
    font-size: var(--text-lg);
    color: var(--color-gold);
    margin: var(--spacing-md) 0;
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* ---- Onboarding-specific button overrides ---- */
.onboarding-content .btn-text {
    background: transparent;
    color: var(--color-text-secondary);
    border: none;
    padding: var(--spacing-md);
    font-size: var(--text-base);
    font-family: inherit;
    cursor: pointer;
    transition: color var(--duration-fast);
    margin-top: var(--spacing-sm);
}

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

.onboarding-content .btn-secondary {
    background: var(--color-surface-1);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
    transition: border-color var(--duration-fast), background var(--duration-fast);
}

.onboarding-content .btn-secondary:hover {
    background: var(--color-surface-2);
    border-color: rgba(var(--brand-accent-rgb), 0.25);
}

/* ---- Animations ---- */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes breatheIcon {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}

@keyframes breatheRing {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.08); opacity: 0.5; }
}

@keyframes floatOrb {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-30px, -40px); }
}

.onboarding-screen:not(.hidden) {
    animation: slideIn var(--duration-slow) var(--ease-out);
}

.onboarding-screen:not(.hidden) .onboarding-content {
    animation: slideIn 0.5s var(--ease-out) 0.1s both;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .onboarding-screen::after,
    .email-icon::before,
    .biometric-icon::before,
    .notification-icon::before,
    .success-icon::before {
        animation: none;
    }
}