/* =========================================
       SIP MONITORING - AUTHENTICATION PAGE
    ========================================= */

    .sip-auth {
        --auth-primary: #174a8b;
        --auth-dark: #103766;
        --auth-accent: #2563eb;
        --auth-muted: #64748b;

        min-height: calc(100vh - 130px);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 35px 15px;
    }

    .sip-auth-container {
        width: 100%;
        max-width: 1050px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        background: #fff;
        border: 1px solid #e8edf5;
        border-radius: 22px;
        overflow: hidden;
        box-shadow: 0 20px 60px rgba(15, 23, 42, .07);
    }

    /* =========================================
       LEFT BRANDING PANEL
    ========================================= */

    .sip-auth-brand {
        background: linear-gradient(
            145deg,
            #103766 0%,
            #174a8b 55%,
            #2563eb 100%
        );

        position: relative;
        overflow: hidden;
        padding: 55px 45px;
        color: #fff;

        display: flex;
        flex-direction: column;
        justify-content: space-between;
        min-height: 560px;
    }

    .sip-auth-brand::before {
        content: "";
        position: absolute;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        border: 55px solid rgba(255,255,255,.04);
        top: -120px;
        right: -130px;
    }

    .sip-auth-brand::after {
        content: "";
        position: absolute;
        width: 230px;
        height: 230px;
        border-radius: 50%;
        background: rgba(255,255,255,.035);
        bottom: -110px;
        left: -100px;
    }

    .sip-brand-content,
    .sip-brand-footer {
        position: relative;
        z-index: 2;
    }

    .sip-brand-symbol {
        width: 63px;
        height: 63px;
        border-radius: 17px;
        background: rgba(255,255,255,.13);
        border: 1px solid rgba(255,255,255,.20);

        display: flex;
        align-items: center;
        justify-content: center;

        font-size: 30px;
        margin-bottom: 35px;
    }

    .sip-brand-label {
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: #bfdbfe;
        margin-bottom: 14px;
    }

    .sip-brand-title {
        font-size: clamp(29px, 3vw, 37px);
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: -.8px;
        margin-bottom: 20px;
    }

    .sip-brand-description {
        font-size: 13px;
        line-height: 1.9;
        color: rgba(255,255,255,.78);
        max-width: 350px;
    }

    .sip-brand-features {
        display: flex;
        flex-direction: column;
        gap: 17px;
        margin-top: 34px;
    }

    .sip-brand-feature {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 12px;
        font-weight: 500;
        color: rgba(255,255,255,.9);
    }

    .sip-brand-feature i {
        width: 30px;
        height: 30px;
        border-radius: 9px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255,255,255,.12);
        font-size: 14px;
    }

    .sip-brand-footer {
        font-size: 11px;
        color: rgba(255,255,255,.55);
        margin-top: 35px;
    }

    /* =========================================
       RIGHT LOGIN PANEL
    ========================================= */

    .sip-auth-form-panel {
        padding: 65px 55px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .sip-login-icon {
        width: 50px;
        height: 50px;
        border-radius: 13px;
        background: #eff6ff;
        color: var(--auth-primary);

        display: flex;
        align-items: center;
        justify-content: center;

        font-size: 23px;
        margin-bottom: 25px;
    }

    .sip-login-title {
        font-size: 27px;
        font-weight: 800;
        letter-spacing: -.6px;
        color: #1e293b;
        margin-bottom: 8px;
    }

    .sip-login-subtitle {
        font-size: 13px;
        color: var(--auth-muted);
        line-height: 1.8;
        margin-bottom: 30px;
    }

    .sip-login-form .form-label {
        font-size: 12px;
        font-weight: 700;
        color: #334155;
        margin-bottom: 9px;
    }

    .sip-input-wrapper {
        position: relative;
    }

    .sip-input-icon {
        position: absolute;
        left: 15px;
        top: 50%;
        transform: translateY(-50%);
        color: #94a3b8;
        font-size: 16px;
        pointer-events: none;
    }

    .sip-login-form .form-control {
        min-height: 49px;
        border: 1px solid #dfe5ee;
        border-radius: 10px;
        padding: 12px 15px 12px 44px;

        font-size: 13px;
        color: #1e293b;
        background: #fff;

        transition: border-color .2s, box-shadow .2s;
    }

    .sip-login-form .form-control:focus {
        border-color: #93b9f3;
        box-shadow: 0 0 0 4px rgba(37,99,235,.08);
    }

    .sip-login-form .form-control::placeholder {
        color: #a0aec0;
    }

    .sip-password-input {
        padding-right: 48px !important;
    }

    .sip-password-toggle {
        position: absolute;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);

        width: 35px;
        height: 35px;
        border: 0;
        border-radius: 7px;
        background: transparent;
        color: #94a3b8;

        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }

    .sip-password-toggle:hover {
        background: #f1f5f9;
        color: var(--auth-primary);
    }

    .sip-login-btn {
        width: 100%;
        min-height: 49px;
        border: none;
        border-radius: 10px;

        background: var(--auth-primary);
        color: #fff;

        font-size: 13px;
        font-weight: 700;

        display: flex;
        justify-content: center;
        align-items: center;
        gap: 10px;

        transition: background .2s, transform .2s;
    }

    .sip-login-btn:hover {
        background: var(--auth-dark);
        color: #fff;
        transform: translateY(-1px);
    }

    .sip-login-btn:disabled {
        opacity: .75;
        cursor: wait;
        transform: none;
    }

    .sip-auth-alert {
        border: 0;
        border-radius: 10px;
        padding: 14px 16px;
        font-size: 12px;
        line-height: 1.7;

        display: flex;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 22px;
    }

    .sip-auth-alert i {
        font-size: 16px;
        flex-shrink: 0;
    }

    .sip-auth-alert-danger {
        background: #fef2f2;
        color: #b91c1c;
    }

    .sip-auth-alert-info {
        background: #eff6ff;
        color: #1d4ed8;
    }

    .sip-login-divider {
        display: flex;
        align-items: center;
        gap: 13px;
        color: #94a3b8;
        font-size: 11px;
        margin: 25px 0;
    }

    .sip-login-divider::before,
    .sip-login-divider::after {
        content: "";
        flex: 1;
        height: 1px;
        background: #e8edf5;
    }

    .sip-public-link {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;

        color: var(--auth-primary);
        text-decoration: none;
        font-weight: 600;
        font-size: 12px;

        padding: 10px;
        border-radius: 9px;
        transition: background .2s;
    }

    .sip-public-link:hover {
        background: #eff6ff;
        color: var(--auth-dark);
    }

    .sip-login-security {
        text-align: center;
        margin-top: 35px;
        color: #94a3b8;
        font-size: 10px;
        line-height: 1.8;
    }

    .sip-login-security i {
        color: #16a34a;
        margin-right: 5px;
    }

    /* =========================================
       RESPONSIVENESS
    ========================================= */

    @media (max-width: 991px) {
        .sip-auth-container {
            grid-template-columns: 1fr;
            max-width: 520px;
        }

        .sip-auth-brand {
            min-height: auto;
            padding: 32px;
        }

        .sip-brand-symbol,
        .sip-brand-features,
        .sip-brand-footer {
            display: none;
        }

        .sip-brand-title {
            font-size: 25px;
            margin-bottom: 8px;
        }

        .sip-brand-description {
            margin-bottom: 0;
        }

        .sip-auth-form-panel {
            padding: 38px 32px;
        }
    }

    @media (max-width: 480px) {
        .sip-auth {
            padding: 15px 0;
            min-height: auto;
        }

        .sip-auth-container {
            border-radius: 15px;
        }

        .sip-auth-brand {
            padding: 27px 24px;
        }

        .sip-auth-form-panel {
            padding: 32px 24px;
        }

        .sip-login-title {
            font-size: 24px;
        }
    }

    @media (prefers-reduced-motion: reduce) {
        .sip-login-btn {
            transition: none;
        }

        .sip-login-btn:hover {
            transform: none;
        }
    }