html, body {
            height: 100%;
            margin: 0;
            font-family: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
            background: #f1f5f9;
        }

        .login-shell {
            min-height: 100vh;
            display: flex;
        }

        /* Left brand panel — hidden on small screens */
        .login-brand-panel {
            display: none;
            flex: 1 1 42%;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 55%, #1e3a8a 100%);
            color: #fff;
            padding: 3rem 3.5rem;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            overflow: hidden;
        }

        .login-brand-panel::after {
            content: '';
            position: absolute;
            right: -100px;
            top: -100px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 70%);
        }

        .login-brand-panel::before {
            content: '';
            position: absolute;
            left: -80px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 118, 110, 0.3), transparent 70%);
        }

        .login-brand-top {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .login-brand-top img {
            height: 46px;
            background: #fff;
            border-radius: 8px;
            padding: 4px;
        }

        .login-brand-top .lbt-text h5 {
            margin: 0;
            font-size: 0.78rem;
            font-weight: 600;
            color: #cbd5e1;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .login-brand-top .lbt-text h4 {
            margin: 0;
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
        }

        .login-brand-mid {
            position: relative;
            z-index: 1;
            margin-top: 2rem;
        }

        .login-brand-mid h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
        }

        .login-brand-mid p {
            color: #cbd5e1;
            font-size: 0.95rem;
            max-width: 420px;
            margin-bottom: 2rem;
        }

        .login-feature-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .login-feature-list .lf-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.9rem;
            color: #e2e8f0;
        }

        .login-feature-list .lf-icon {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .login-brand-bottom {
            position: relative;
            z-index: 1;
            font-size: 0.75rem;
            color: #94a3b8;
        }

        /* Right form panel */
        .login-form-panel {
            flex: 1 1 58%;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem 1.25rem;
        }

        .login-card {
            width: 100%;
            max-width: 400px;
        }

        .login-card-header {
            text-align: center;
            margin-bottom: 1.75rem;
        }

        .login-card-header img {
            height: 56px;
            margin-bottom: 12px;
        }

        .login-card-header h5 {
            font-size: 0.78rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 2px;
        }

        .login-card-header h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 4px;
        }

        .login-card-header p {
            font-size: 0.85rem;
            color: #64748b;
            margin: 0;
        }

        .login-form-label {
            font-weight: 600;
            font-size: 0.82rem;
            color: #334155;
            margin-bottom: 4px;
        }

        .login-input-wrap {
            position: relative;
        }

        .login-input-wrap i.field-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 0.9rem;
            pointer-events: none;
        }

        .login-input-wrap .form-control {
            padding-left: 40px;
            height: 46px;
            border-radius: 10px;
            border: 1.5px solid #e2e8f0;
            font-size: 0.92rem;
        }

        .login-input-wrap .form-control:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .login-input-wrap .toggle-password {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            cursor: pointer;
            font-size: 0.9rem;
            background: none;
            border: none;
        }

        .btn-login-submit {
            width: 100%;
            height: 46px;
            background: linear-gradient(135deg, #2563eb, #1e3a8a);
            border: none;
            border-radius: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.2px;
            transition: transform 0.15s ease, box-shadow 0.15s ease;
        }

        .btn-login-submit:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 16px -4px rgba(37, 99, 235, 0.4);
            color: #fff;
        }

        .login-links {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            margin: 0.75rem 0 1.25rem 0;
        }

        .login-links a {
            color: #2563eb;
            text-decoration: none;
            font-weight: 600;
        }

        .login-links a:hover { text-decoration: underline; }

        .login-footer-note {
            text-align: center;
            font-size: 0.72rem;
            color: #94a3b8;
            margin-top: 1.5rem;
        }

        .login-alert {
            border-radius: 10px;
            font-size: 0.85rem;
            padding: 0.7rem 1rem;
        }

        @media (min-width: 992px) {
            .login-brand-panel { display: flex; }
        }

        @media (max-width: 991px) {
            .login-form-panel { padding: 2.5rem 1.25rem; }
        }

        @media (max-width: 420px) {
            .login-card-header img { height: 46px; }
            .login-card-header h2 { font-size: 1.15rem; }
        }

        /* Multi-step indicator (Request -> Verify OTP -> New Password) */
        .auth-steps {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-bottom: 1.75rem;
        }

        .auth-steps .step-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            background: #e2e8f0;
            color: #64748b;
        }

        .auth-steps .step-dot.done {
            background: #10b981;
            color: #fff;
        }

        .auth-steps .step-dot.active {
            background: #2563eb;
            color: #fff;
        }

        .auth-steps .step-line {
            width: 32px;
            height: 2px;
            background: #e2e8f0;
        }

        .auth-steps .step-line.done {
            background: #10b981;
        }

        /* OTP input boxes */
        .otp-input-group {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-bottom: 0.5rem;
        }

        .otp-input-group input {
            width: 46px;
            height: 54px;
            text-align: center;
            font-size: 1.3rem;
            font-weight: 700;
            border-radius: 10px;
            border: 1.5px solid #e2e8f0;
            color: #0f172a;
        }

        .otp-input-group input:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
            outline: none;
        }

        .auth-back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: #64748b;
            text-decoration: none;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .auth-back-link:hover {
            color: #2563eb;
        }