* {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            min-height: 100vh;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background:
                radial-gradient(circle at top left, rgba(13, 110, 253, 0.10), transparent 35%),
                radial-gradient(circle at bottom right, rgba(13, 110, 253, 0.08), transparent 35%),
                #f4f7fb;
        }

        .login-wrapper {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
        }

        .login-card {
            width: 100%;
            max-width: 430px;
            background: #ffffff;
            border-radius: 22px;
            padding: 42px 38px;
            box-shadow:
                0 20px 50px rgba(15, 23, 42, 0.08),
                0 4px 14px rgba(15, 23, 42, 0.04);
            border: 1px solid rgba(15, 23, 42, 0.05);
        }

        .logo-area {
            text-align: center;
            margin-bottom: 34px;
        }

        .logo-icon {
            margin: 0 auto 18px;
            border-radius: 18px;
        }

        .login-title {
            margin: 0;
            font-size: 27px;
            font-weight: 700;
            color: #172033;
            letter-spacing: -0.5px;
        }

        .login-subtitle {
            margin-top: 8px;
            margin-bottom: 0;
            font-size: 14px;
            color: #7a8495;
        }

        .form-label {
            font-size: 13px;
            font-weight: 600;
            color: #3b4351;
            margin-bottom: 8px;
        }

        .input-group-custom {
            position: relative;
        }

        .input-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 18px;
            color: #8a94a6;
            z-index: 5;
            pointer-events: none;
        }

        .form-control {
            height: 54px;
            border-radius: 12px;
            border: 1px solid #dde3ec;
            background-color: #fafbfc;
            padding-left: 47px;
            padding-right: 44px;
            font-size: 15px;
            color: #222b3b;
            transition: all 0.2s ease;
        }

        .form-control::placeholder {
            color: #a5adba;
        }

        .form-control:focus {
            background-color: #ffffff;
            border-color: #86b7fe;
            box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.08);
        }

        .password-toggle {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: 0;
            color: #8a94a6;
            font-size: 18px;
            padding: 4px;
            z-index: 5;
        }

        .password-toggle:hover {
            color: #0d6efd;
        }

        .btn-login {
            height: 54px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            background: #0d6efd;
            border-color: #0d6efd;
            box-shadow: 0 10px 22px rgba(13, 110, 253, 0.18);
            transition: all 0.2s ease;
        }

        .btn-login:hover {
            background: #0b5ed7;
            border-color: #0b5ed7;
            transform: translateY(-1px);
            box-shadow: 0 13px 28px rgba(13, 110, 253, 0.22);
        }

        .btn-login:active {
            transform: translateY(0);
        }

        .login-footer {
            margin-top: 30px;
            text-align: center;
            color: #9aa3b2;
            font-size: 12px;
        }

        .alert {
            border-radius: 12px;
            font-size: 14px;
            border: 0;
        }

        @media (max-width: 576px) {
            .login-wrapper {
                padding: 16px;
            }

            .login-card {
                padding: 34px 24px;
                border-radius: 18px;
            }

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