/* Online login page. Uses shared Un Falsus theme tokens from urcaea-ui.css. */
.login-page-container {
    width: min(100%, 520px);
    margin: clamp(24px, 7vh, 76px) auto;
    padding: 0 12px;
}

.login-title {
    margin: 0 0 20px;
    color: var(--app-text);
    font-size: clamp(1.7rem, 4vw, 2.25rem);
    font-weight: 800;
    text-align: center;
}

.login-title::after {
    content: "";
    display: block;
    width: 84px;
    height: 3px;
    margin: 14px auto 0;
    border-radius: 999px;
    background: var(--app-primary);
}

.login-card {
    padding: clamp(20px, 4vw, 34px);
    background: var(--app-surface);
    border: 1px solid var(--app-line);
    border-radius: var(--radius);
    box-shadow: var(--app-shadow-sm);
}

.login-form {
    display: grid;
    gap: 18px;
}

.login-input-group {
    display: grid;
    gap: 8px;
}

.login-label {
    color: var(--app-muted);
    font-size: 0.94rem;
    font-weight: 650;
}

.login-input {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    color: var(--app-text);
    background: var(--app-surface);
    border: 1px solid var(--app-line-strong);
    border-radius: var(--radius);
    font: inherit;
}

.login-input::placeholder {
    color: var(--app-faint);
}

.login-input:focus {
    border-color: var(--app-primary);
    outline: 2px solid color-mix(in srgb, var(--app-primary) 28%, transparent);
    outline-offset: 1px;
}

.login-submit-btn {
    width: 100%;
    min-height: 46px;
    margin-top: 4px;
    color: #fff;
    background: var(--app-primary);
    border: 1px solid var(--app-primary);
    border-radius: var(--radius);
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.login-submit-btn:hover {
    background: var(--app-primary-hover);
    border-color: var(--app-primary-hover);
}

.register-tip {
    margin-top: 22px;
    overflow: hidden;
    background: var(--app-surface-soft);
    border: 1px solid var(--app-line);
    border-radius: var(--radius);
}

.tip-header {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    color: var(--app-text);
    background: transparent;
    border: 0;
    font: inherit;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
}

.tip-header:hover {
    color: var(--app-primary);
    background: var(--app-primary-soft);
}

.tip-arrow {
    width: 10px;
    height: 10px;
    flex: 0 0 auto;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.18s ease;
}

.tip-arrow.active {
    transform: rotate(-135deg);
}

.tip-content {
    max-height: 0;
    overflow: hidden;
    padding: 0 14px;
    color: var(--app-muted);
    background: var(--app-surface);
    border-top: 0 solid var(--app-line);
    transition: max-height 0.18s ease, padding 0.18s ease, border-width 0.18s ease;
}

.tip-content.active {
    max-height: 220px;
    padding: 12px 14px;
    border-top-width: 1px;
}

.tip-content p {
    margin: 0 0 6px;
}

.tip-content p:last-child {
    margin-bottom: 0;
}

.flash-messages {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
}

.flash-message {
    padding: 11px 13px;
    color: var(--app-text);
    background: var(--app-primary-soft);
    border: 1px solid var(--app-line);
    border-left: 3px solid var(--app-primary);
    border-radius: var(--radius);
}

.flash-message.error {
    border-left-color: var(--app-danger);
}

.flash-message.success {
    border-left-color: var(--app-success);
}

.login-form-footer {
    margin-top: 20px;
    padding-top: 18px;
    color: var(--app-muted);
    font-size: 0.9rem;
    text-align: center;
    border-top: 1px solid var(--app-line);
}

.login-link {
    color: var(--app-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.login-loading {
    display: none;
    margin-top: 16px;
    text-align: center;
}

.loading-spinner {
    display: inline-block;
    width: 34px;
    height: 34px;
    border: 3px solid var(--app-line);
    border-top-color: var(--app-primary);
    border-radius: 50%;
    animation: loginSpin 1s linear infinite;
}

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

@media (max-width: 520px) {
    .login-page-container {
        margin: 18px auto;
    }

    .login-card {
        padding: 18px;
    }
}