.ui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-sizing: border-box;
    max-width: 100%;
    min-height: 46px;
    padding: 0.72rem 1.2rem;
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.015em;
    border-radius: var(--ui-radius-lg, 12px);
    border: 1px solid transparent;
    cursor: pointer;
    position: relative;
    text-decoration: none;
    overflow: hidden;
    transition:
        transform var(--ui-duration-base, 200ms) var(--ui-ease, ease),
        box-shadow var(--ui-duration-base, 200ms) var(--ui-ease, ease),
        background-color var(--ui-duration-base, 200ms) var(--ui-ease, ease),
        border-color var(--ui-duration-base, 200ms) var(--ui-ease, ease),
        color var(--ui-duration-base, 200ms) var(--ui-ease, ease),
        opacity var(--ui-duration-base, 200ms) var(--ui-ease, ease);
    -webkit-tap-highlight-color: transparent;
}

.ui-btn--nowrap {
    white-space: nowrap;
}

.ui-btn--block {
    width: 100%;
}

.ui-btn--pill {
    border-radius: 999px;
}

.ui-btn--sm {
    min-height: 40px;
    padding: 0.58rem 1rem;
    font-size: 0.84rem;
}

.ui-btn--md {
    min-height: 46px;
    padding: 0.72rem 1.2rem;
    font-size: 0.92rem;
}

.ui-btn--lg {
    min-height: 52px;
    padding: 0.92rem 1.5rem;
    font-size: 0.96rem;
}

.ui-btn--hero {
    min-height: 52px;
    padding: 0.92rem 1.5rem;
    font-size: 0.96rem;
}

.ui-btn--auth {
    min-height: 50px;
    width: 100%;
    justify-content: center;
}

.ui-btn--marketing {
    min-height: 48px;
    padding: 0.76rem 1.24rem;
    font-size: 0.9rem;
    border-radius: 999px;
}

.ui-btn:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px var(--ui-bg),
        0 0 0 4px rgba(138, 99, 255, 0.72),
        0 14px 32px rgba(111, 73, 246, 0.18);
}

.ui-btn:disabled,
.ui-btn.is-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.ui-btn .ui-btn-loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 160ms ease;
}

.ui-btn.is-loading .ui-btn-content {
    opacity: 0;
}

.ui-btn.is-loading .ui-btn-loader {
    opacity: 1;
    visibility: visible;
}

.ui-loader-svg {
    width: 1.1rem;
    height: 1.1rem;
    animation: ui-spin 1s linear infinite;
    opacity: 0.82;
}

@keyframes ui-spin {
    100% { transform: rotate(360deg); }
}

.ui-btn--primary {
    background: linear-gradient(135deg, var(--ui-primary), var(--ui-primary-2));
    color: var(--ui-primary-text, #fff);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: var(--ui-primary-shadow, 0 16px 32px rgba(109, 75, 255, 0.24));
}

.ui-btn--primary:hover,
.ui-btn--primary:active {
    transform: translateY(-1px);
    box-shadow: var(--ui-primary-shadow-strong, 0 20px 36px rgba(109, 75, 255, 0.3));
}

.ui-btn--secondary {
    background: var(--ui-surface-elevated);
    color: var(--ui-text);
    border-color: var(--ui-border);
    box-shadow: var(--ui-note-highlight, inset 0 1px 0 rgba(255, 255, 255, 0.05)), var(--ui-shadow-soft);
}

.ui-btn--secondary:hover {
    background: var(--ui-surface);
    border-color: var(--ui-select-hover-border);
    transform: translateY(-1px);
}

.ui-btn--outline {
    background: transparent;
    color: var(--ui-text);
    border-color: var(--ui-border);
}

.ui-btn--outline:hover {
    border-color: rgba(109, 75, 255, 0.45);
    background: var(--ui-primary-soft-bg, rgba(109, 75, 255, 0.08));
}

.ui-btn--ghost {
    background: transparent;
    color: var(--ui-text-soft, #d2d4db);
    border-color: transparent;
    box-shadow: none;
}

.ui-btn--ghost:hover {
    color: var(--ui-text);
    background: var(--ui-primary-soft-bg, rgba(109, 75, 255, 0.08));
}

.ui-btn--marketing.ui-btn--primary {
    background: linear-gradient(135deg, #6f49f6 0%, #8a63ff 58%, #aa8fff 100%);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow:
        0 18px 34px rgba(111, 73, 246, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.ui-btn--marketing.ui-btn--primary:hover,
.ui-btn--marketing.ui-btn--primary:active {
    transform: translateY(-1px);
    box-shadow: 0 22px 38px rgba(111, 73, 246, 0.34);
}

.ui-btn--marketing.ui-btn--secondary {
    background: var(--ui-surface-subtle, rgba(255, 255, 255, 0.045));
    border-color: var(--ui-border);
    color: var(--ui-text);
    box-shadow: var(--ui-note-highlight);
}

.ui-btn--marketing.ui-btn--secondary:hover {
    background: var(--ui-surface);
    border-color: var(--ui-select-hover-border);
}

.ui-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--ui-field-bg);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg, 12px);
    transition: border-color var(--ui-duration-fast), box-shadow var(--ui-duration-fast), transform var(--ui-duration-fast);
}

.ui-input-wrapper:focus-within {
    border-color: rgba(138, 99, 255, 0.45);
    box-shadow: 0 0 0 4px rgba(138, 99, 255, 0.16);
    transform: translateY(-1px);
}

.is-invalid .ui-input-wrapper {
    border-color: rgba(239, 68, 68, 0.42) !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.10) !important;
}

.ui-input-control {
    flex: 1;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    margin: 0 !important;
    background: transparent;
    border: none;
    padding: 0.56rem 0.8rem;
    min-height: 40px;
    color: var(--ui-text);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 500;
    line-height: 1.2;
    outline: none !important;
    box-shadow: none !important;
    border-radius: var(--ui-radius-lg, 12px);
    appearance: none;
    -webkit-appearance: none;
}

.ui-input-control::placeholder {
    color: var(--ui-muted);
    font-weight: 400;
}

.ui-input-control:-webkit-autofill,
.ui-input-control:-webkit-autofill:hover,
.ui-input-control:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--ui-field-text);
    box-shadow: 0 0 0 1000px var(--ui-field-bg) inset;
    caret-color: var(--ui-field-text);
    border-radius: inherit;
    transition: background-color 9999s ease-in-out 0s;
}

.ui-input-affix {
    display: flex;
    align-items: center;
    padding: 0 0.6rem;
    color: var(--ui-text-soft);
    flex-shrink: 0;
}

.ui-input-affix--prefix { padding-right: 0; }
.ui-input-affix--suffix { padding-left: 0; }

.ui-password-toggle {
    position: absolute;
    right: 0.4rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    color: var(--ui-text-soft);
    cursor: pointer;
    z-index: 3;
    transition: background 160ms, color 160ms;
}

.ui-password-toggle:hover {
    background: var(--ui-surface-soft, rgba(255, 255, 255, 0.05));
    color: var(--ui-text);
}

.ui-input-wrapper--password .ui-input-control {
    padding-right: 2.45rem;
}

.ui-field__label {
    font-size: 0.84rem;
    font-weight: 600;
    line-height: 1.25;
}

.ui-field__hint,
.ui-field__error {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.76rem;
    line-height: 1.4;
}

.ui-checkbox-wrapper {
    display: inline-flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    position: relative;
}

.ui-checkbox-control {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.1rem;
    width: 20px;
    height: 20px;
}

.ui-checkbox-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    border: 0;
    cursor: pointer;
    z-index: 2;
}

.ui-checkbox-box {
    width: 20px;
    height: 20px;
    border-radius: var(--ui-radius-sm, 8px);
    border: 1px solid var(--ui-border);
    background: var(--ui-surface-soft, rgba(255, 255, 255, 0.04));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
    pointer-events: none;
}

.ui-checkbox-input:checked + .ui-checkbox-box {
    background: var(--ui-primary);
    border-color: var(--ui-primary);
    box-shadow: 0 0 12px rgba(138, 99, 255, 0.25);
}

.ui-checkbox-input:focus-visible + .ui-checkbox-box {
    box-shadow:
        0 0 0 2px var(--ui-bg),
        0 0 0 4px rgba(138, 99, 255, 0.22);
}

.ui-checkbox-wrapper--invalid .ui-checkbox-box,
.ui-checkbox-input[aria-invalid="true"] + .ui-checkbox-box {
    border-color: rgba(239, 68, 68, 0.5);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.ui-checkbox-icon {
    width: 12px;
    height: 12px;
    color: #fff;
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 160ms ease, transform 160ms ease;
}

.ui-checkbox-input:checked + .ui-checkbox-box .ui-checkbox-icon {
    opacity: 1;
    transform: scale(1);
}

.ui-checkbox-label {
    font-size: 0.88rem;
    color: var(--ui-text-soft);
    line-height: 1.45;
    user-select: none;
    transition: color 160ms ease;
}

.ui-checkbox-wrapper:hover .ui-checkbox-label {
    color: var(--ui-text);
}

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

.ui-checkbox-label a:hover {
    color: var(--ui-primary);
}

@media (max-width: 767.98px) {
    .auth-login-field__top {
        gap: 0.4rem;
    }

    .auth-login-link-wrap {
        width: 100%;
    }

    .auth-login-link-wrap .auth-login-link {
        display: inline-flex;
        min-height: 20px;
    }

    .ui-input-control {
        min-height: 42px;
        padding: 0.62rem 0.8rem;
        font-size: 0.9rem;
    }

    .ui-input-wrapper--password .ui-input-control {
        padding-right: 2.55rem;
    }

    .ui-checkbox-wrapper {
        width: 100%;
    }

    .ui-checkbox-label {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}